./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.08.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 71189e3cc465fa9296e61b90c4b4428a637cf1ec8723797967b75b70226f0c15 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:59:53,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:59:53,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:59:53,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:59:53,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:59:53,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:59:53,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:59:53,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:59:53,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:59:53,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:59:53,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:59:53,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:59:53,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:59:53,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:59:53,801 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:59:53,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:59:53,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:59:53,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:59:53,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:59:53,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:59:53,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:59:53,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:59:53,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:59:53,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:59:53,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:59:53,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:59:53,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:59:53,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:59:53,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:59:53,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:59:53,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:59:53,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:59:53,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:59:53,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:59:53,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:59:53,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:59:53,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:59:53,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:59:53,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:59:53,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:59:53,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:59:53,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:59:53,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71189e3cc465fa9296e61b90c4b4428a637cf1ec8723797967b75b70226f0c15 [2024-10-24 02:59:54,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:59:54,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:59:54,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:59:54,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:59:54,098 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:59:54,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2024-10-24 02:59:55,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:59:55,717 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:59:55,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2024-10-24 02:59:55,732 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac487a0b2/e3276a107cdb44fd936bc360f3b04bbf/FLAG7cb5a6dd4 [2024-10-24 02:59:55,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac487a0b2/e3276a107cdb44fd936bc360f3b04bbf [2024-10-24 02:59:55,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:59:55,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:59:55,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:59:55,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:59:55,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:59:55,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:59:55" (1/1) ... [2024-10-24 02:59:55,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e9e7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:55, skipping insertion in model container [2024-10-24 02:59:55,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:59:55" (1/1) ... [2024-10-24 02:59:55,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:59:56,008 WARN L248 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.08.cil-1.c[913,926] [2024-10-24 02:59:56,073 WARN L248 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.08.cil-1.c[5977,5990] [2024-10-24 02:59:56,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:59:56,182 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:59:56,197 WARN L248 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.08.cil-1.c[913,926] [2024-10-24 02:59:56,222 WARN L248 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.08.cil-1.c[5977,5990] [2024-10-24 02:59:56,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:59:56,310 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:59:56,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56 WrapperNode [2024-10-24 02:59:56,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:59:56,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:59:56,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:59:56,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:59:56,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,374 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 843 [2024-10-24 02:59:56,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:59:56,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:59:56,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:59:56,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:59:56,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,407 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]. [2024-10-24 02:59:56,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:59:56,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:59:56,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:59:56,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:59:56,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (1/1) ... [2024-10-24 02:59:56,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:59:56,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:59:56,484 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) [2024-10-24 02:59:56,491 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 [2024-10-24 02:59:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:59:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:59:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:59:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-10-24 02:59:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-10-24 02:59:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-24 02:59:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-24 02:59:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-24 02:59:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-24 02:59:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-24 02:59:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-24 02:59:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-24 02:59:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-24 02:59:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-24 02:59:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-24 02:59:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:59:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-24 02:59:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-24 02:59:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:59:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:59:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-24 02:59:56,544 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-24 02:59:56,697 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:59:56,700 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:59:57,528 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-10-24 02:59:57,529 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:59:57,604 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:59:57,605 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 02:59:57,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:59:57 BoogieIcfgContainer [2024-10-24 02:59:57,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:59:57,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:59:57,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:59:57,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:59:57,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:59:55" (1/3) ... [2024-10-24 02:59:57,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa875ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:59:57, skipping insertion in model container [2024-10-24 02:59:57,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:56" (2/3) ... [2024-10-24 02:59:57,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa875ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:59:57, skipping insertion in model container [2024-10-24 02:59:57,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:59:57" (3/3) ... [2024-10-24 02:59:57,614 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2024-10-24 02:59:57,631 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:59:57,632 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:59:57,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:59:57,725 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;@7fe0122b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:59:57,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:59:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 279 states have (on average 1.7096774193548387) internal successors, (477), 284 states have internal predecessors, (477), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 02:59:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 02:59:57,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:59:57,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:59:57,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:59:57,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:59:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash 684512501, now seen corresponding path program 1 times [2024-10-24 02:59:57,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:59:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617601311] [2024-10-24 02:59:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:59:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:59:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:58,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 02:59:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:58,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 02:59:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:59:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:59:58,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617601311] [2024-10-24 02:59:58,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617601311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:59:58,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:59:58,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:59:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202168560] [2024-10-24 02:59:58,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:59:58,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:59:58,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:59:58,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:59:58,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:59:58,112 INFO L87 Difference]: Start difference. First operand has 319 states, 279 states have (on average 1.7096774193548387) internal successors, (477), 284 states have internal predecessors, (477), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 02:59:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:59:58,836 INFO L93 Difference]: Finished difference Result 628 states and 1044 transitions. [2024-10-24 02:59:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 02:59:58,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2024-10-24 02:59:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:59:58,856 INFO L225 Difference]: With dead ends: 628 [2024-10-24 02:59:58,856 INFO L226 Difference]: Without dead ends: 322 [2024-10-24 02:59:58,861 INFO L431 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 [2024-10-24 02:59:58,864 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 286 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:59:58,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 687 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:59:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-24 02:59:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 314. [2024-10-24 02:59:58,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 276 states have (on average 1.5905797101449275) internal successors, (439), 279 states have internal predecessors, (439), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 02:59:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 493 transitions. [2024-10-24 02:59:58,941 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 493 transitions. Word has length 37 [2024-10-24 02:59:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:59:58,942 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 493 transitions. [2024-10-24 02:59:58,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 02:59:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 493 transitions. [2024-10-24 02:59:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 02:59:58,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:59:58,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:59:58,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:59:58,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:59:58,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:59:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1366471497, now seen corresponding path program 1 times [2024-10-24 02:59:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:59:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926989971] [2024-10-24 02:59:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:59:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:59:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 02:59:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 02:59:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:59:59,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:59:59,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926989971] [2024-10-24 02:59:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926989971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:59:59,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:59:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:59:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315636927] [2024-10-24 02:59:59,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:59:59,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:59:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:59:59,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:59:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:59:59,101 INFO L87 Difference]: Start difference. First operand 314 states and 493 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-24 02:59:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:59:59,577 INFO L93 Difference]: Finished difference Result 433 states and 665 transitions. [2024-10-24 02:59:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 02:59:59,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 37 [2024-10-24 02:59:59,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:59:59,581 INFO L225 Difference]: With dead ends: 433 [2024-10-24 02:59:59,581 INFO L226 Difference]: Without dead ends: 377 [2024-10-24 02:59:59,582 INFO L431 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 [2024-10-24 02:59:59,583 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 652 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:59:59,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 557 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 02:59:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-10-24 02:59:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 371. [2024-10-24 02:59:59,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 326 states have (on average 1.5582822085889572) internal successors, (508), 330 states have internal predecessors, (508), 32 states have call successors, (32), 11 states have call predecessors, (32), 11 states have return successors, (36), 30 states have call predecessors, (36), 30 states have call successors, (36) [2024-10-24 02:59:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 576 transitions. [2024-10-24 02:59:59,617 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 576 transitions. Word has length 37 [2024-10-24 02:59:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:59:59,617 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 576 transitions. [2024-10-24 02:59:59,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-24 02:59:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 576 transitions. [2024-10-24 02:59:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 02:59:59,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:59:59,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:59:59,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:59:59,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:59:59,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:59:59,621 INFO L85 PathProgramCache]: Analyzing trace with hash 926183912, now seen corresponding path program 1 times [2024-10-24 02:59:59,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:59:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623834640] [2024-10-24 02:59:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:59:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:59:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 02:59:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:59:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:59:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:59:59,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:59:59,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623834640] [2024-10-24 02:59:59,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623834640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:59:59,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:59:59,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:59:59,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024711896] [2024-10-24 02:59:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:59:59,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:59:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:59:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:59:59,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:59:59,723 INFO L87 Difference]: Start difference. First operand 371 states and 576 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-24 03:00:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:00,157 INFO L93 Difference]: Finished difference Result 605 states and 920 transitions. [2024-10-24 03:00:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:00,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 38 [2024-10-24 03:00:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:00,162 INFO L225 Difference]: With dead ends: 605 [2024-10-24 03:00:00,162 INFO L226 Difference]: Without dead ends: 494 [2024-10-24 03:00:00,163 INFO L431 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 [2024-10-24 03:00:00,164 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 670 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:00,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 560 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:00,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-24 03:00:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 471. [2024-10-24 03:00:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 413 states have (on average 1.5157384987893463) internal successors, (626), 418 states have internal predecessors, (626), 40 states have call successors, (40), 15 states have call predecessors, (40), 16 states have return successors, (50), 38 states have call predecessors, (50), 38 states have call successors, (50) [2024-10-24 03:00:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 716 transitions. [2024-10-24 03:00:00,206 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 716 transitions. Word has length 38 [2024-10-24 03:00:00,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:00,206 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 716 transitions. [2024-10-24 03:00:00,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-24 03:00:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 716 transitions. [2024-10-24 03:00:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 03:00:00,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:00,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:00,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:00:00,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:00,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2063654889, now seen corresponding path program 1 times [2024-10-24 03:00:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:00,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823928203] [2024-10-24 03:00:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:00,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 03:00:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:00,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:00,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823928203] [2024-10-24 03:00:00,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823928203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:00,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:00,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:00,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838044330] [2024-10-24 03:00:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:00,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:00,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:00,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:00,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:00,273 INFO L87 Difference]: Start difference. First operand 471 states and 716 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-24 03:00:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:00,764 INFO L93 Difference]: Finished difference Result 891 states and 1297 transitions. [2024-10-24 03:00:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:00,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 39 [2024-10-24 03:00:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:00,769 INFO L225 Difference]: With dead ends: 891 [2024-10-24 03:00:00,769 INFO L226 Difference]: Without dead ends: 680 [2024-10-24 03:00:00,771 INFO L431 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 [2024-10-24 03:00:00,772 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 269 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:00,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 782 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:00,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-10-24 03:00:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 576. [2024-10-24 03:00:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 506 states have (on average 1.492094861660079) internal successors, (755), 513 states have internal predecessors, (755), 46 states have call successors, (46), 21 states have call predecessors, (46), 22 states have return successors, (56), 42 states have call predecessors, (56), 44 states have call successors, (56) [2024-10-24 03:00:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 857 transitions. [2024-10-24 03:00:00,823 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 857 transitions. Word has length 39 [2024-10-24 03:00:00,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:00,823 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 857 transitions. [2024-10-24 03:00:00,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-24 03:00:00,824 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 857 transitions. [2024-10-24 03:00:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 03:00:00,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:00,826 INFO L215 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] [2024-10-24 03:00:00,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:00:00,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:00,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash -629290764, now seen corresponding path program 1 times [2024-10-24 03:00:00,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:00,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716480468] [2024-10-24 03:00:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 03:00:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:00:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716480468] [2024-10-24 03:00:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716480468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:00,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:00,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055001456] [2024-10-24 03:00:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:00,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:00,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:00,951 INFO L87 Difference]: Start difference. First operand 576 states and 857 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-24 03:00:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:01,460 INFO L93 Difference]: Finished difference Result 881 states and 1279 transitions. [2024-10-24 03:00:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:01,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 54 [2024-10-24 03:00:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:01,466 INFO L225 Difference]: With dead ends: 881 [2024-10-24 03:00:01,467 INFO L226 Difference]: Without dead ends: 670 [2024-10-24 03:00:01,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:01,471 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 254 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:01,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 827 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:01,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-10-24 03:00:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 636. [2024-10-24 03:00:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 557 states have (on average 1.4649910233393177) internal successors, (816), 565 states have internal predecessors, (816), 51 states have call successors, (51), 24 states have call predecessors, (51), 26 states have return successors, (65), 47 states have call predecessors, (65), 49 states have call successors, (65) [2024-10-24 03:00:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 932 transitions. [2024-10-24 03:00:01,533 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 932 transitions. Word has length 54 [2024-10-24 03:00:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:01,536 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 932 transitions. [2024-10-24 03:00:01,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-24 03:00:01,537 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 932 transitions. [2024-10-24 03:00:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:00:01,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:01,539 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:01,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:00:01,540 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:01,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -88862144, now seen corresponding path program 1 times [2024-10-24 03:00:01,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:01,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899769191] [2024-10-24 03:00:01,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:01,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:01,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:01,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 03:00:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:01,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:00:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:00:01,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:01,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899769191] [2024-10-24 03:00:01,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899769191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:01,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:01,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991849349] [2024-10-24 03:00:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:01,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:01,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:01,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:01,632 INFO L87 Difference]: Start difference. First operand 636 states and 932 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-24 03:00:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:02,053 INFO L93 Difference]: Finished difference Result 1125 states and 1592 transitions. [2024-10-24 03:00:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:02,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 59 [2024-10-24 03:00:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:02,060 INFO L225 Difference]: With dead ends: 1125 [2024-10-24 03:00:02,060 INFO L226 Difference]: Without dead ends: 790 [2024-10-24 03:00:02,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:02,063 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 656 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:02,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 572 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-10-24 03:00:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 741. [2024-10-24 03:00:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 649 states have (on average 1.431432973805855) internal successors, (929), 658 states have internal predecessors, (929), 58 states have call successors, (58), 29 states have call predecessors, (58), 32 states have return successors, (76), 54 states have call predecessors, (76), 56 states have call successors, (76) [2024-10-24 03:00:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1063 transitions. [2024-10-24 03:00:02,115 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1063 transitions. Word has length 59 [2024-10-24 03:00:02,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:02,116 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1063 transitions. [2024-10-24 03:00:02,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-24 03:00:02,116 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1063 transitions. [2024-10-24 03:00:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:02,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:02,118 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:02,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:00:02,118 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:02,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash -248733713, now seen corresponding path program 1 times [2024-10-24 03:00:02,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:02,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844366894] [2024-10-24 03:00:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,268 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 03:00:02,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:02,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844366894] [2024-10-24 03:00:02,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844366894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:02,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166492366] [2024-10-24 03:00:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:02,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:02,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:02,276 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) [2024-10-24 03:00:02,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:00:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:00:02,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 03:00:02,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:02,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166492366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:02,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:02,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 03:00:02,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768611138] [2024-10-24 03:00:02,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:02,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:02,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:02,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:02,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:02,432 INFO L87 Difference]: Start difference. First operand 741 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:02,562 INFO L93 Difference]: Finished difference Result 1144 states and 1623 transitions. [2024-10-24 03:00:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:00:02,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-24 03:00:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:02,567 INFO L225 Difference]: With dead ends: 1144 [2024-10-24 03:00:02,567 INFO L226 Difference]: Without dead ends: 749 [2024-10-24 03:00:02,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:02,570 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 0 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:02,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:02,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-24 03:00:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-10-24 03:00:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 657 states have (on average 1.417047184170472) internal successors, (931), 666 states have internal predecessors, (931), 58 states have call successors, (58), 29 states have call predecessors, (58), 32 states have return successors, (76), 54 states have call predecessors, (76), 56 states have call successors, (76) [2024-10-24 03:00:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1065 transitions. [2024-10-24 03:00:02,621 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1065 transitions. Word has length 60 [2024-10-24 03:00:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:02,622 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1065 transitions. [2024-10-24 03:00:02,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1065 transitions. [2024-10-24 03:00:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:02,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:02,624 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:02,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 03:00:02,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:02,829 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:02,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1092739215, now seen corresponding path program 1 times [2024-10-24 03:00:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:02,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560849610] [2024-10-24 03:00:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 03:00:02,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:02,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560849610] [2024-10-24 03:00:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560849610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:02,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544736293] [2024-10-24 03:00:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:02,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:02,918 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) [2024-10-24 03:00:02,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:00:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:03,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:00:03,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 03:00:03,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:03,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544736293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:03,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:03,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 03:00:03,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472996213] [2024-10-24 03:00:03,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:03,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:03,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:03,039 INFO L87 Difference]: Start difference. First operand 749 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:03,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:03,156 INFO L93 Difference]: Finished difference Result 1168 states and 1636 transitions. [2024-10-24 03:00:03,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:00:03,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-24 03:00:03,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:03,160 INFO L225 Difference]: With dead ends: 1168 [2024-10-24 03:00:03,161 INFO L226 Difference]: Without dead ends: 765 [2024-10-24 03:00:03,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:03,163 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 0 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:03,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-10-24 03:00:03,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2024-10-24 03:00:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 673 states have (on average 1.3997028231797919) internal successors, (942), 682 states have internal predecessors, (942), 58 states have call successors, (58), 29 states have call predecessors, (58), 32 states have return successors, (75), 54 states have call predecessors, (75), 56 states have call successors, (75) [2024-10-24 03:00:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1075 transitions. [2024-10-24 03:00:03,223 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1075 transitions. Word has length 60 [2024-10-24 03:00:03,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:03,224 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1075 transitions. [2024-10-24 03:00:03,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1075 transitions. [2024-10-24 03:00:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:03,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:03,226 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:03,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 03:00:03,426 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,SelfDestructingSolverStorable7 [2024-10-24 03:00:03,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:03,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:03,428 INFO L85 PathProgramCache]: Analyzing trace with hash 704900401, now seen corresponding path program 1 times [2024-10-24 03:00:03,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:03,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169586168] [2024-10-24 03:00:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:03,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:03,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:03,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:03,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169586168] [2024-10-24 03:00:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169586168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:03,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:03,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:00:03,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859756914] [2024-10-24 03:00:03,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:03,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:00:03,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:00:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:03,593 INFO L87 Difference]: Start difference. First operand 765 states and 1075 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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) [2024-10-24 03:00:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:04,072 INFO L93 Difference]: Finished difference Result 850 states and 1178 transitions. [2024-10-24 03:00:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:00:04,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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 60 [2024-10-24 03:00:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:04,077 INFO L225 Difference]: With dead ends: 850 [2024-10-24 03:00:04,078 INFO L226 Difference]: Without dead ends: 847 [2024-10-24 03:00:04,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:00:04,079 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 1109 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:04,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 570 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-24 03:00:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 764. [2024-10-24 03:00:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 673 states have (on average 1.3967310549777117) internal successors, (940), 681 states have internal predecessors, (940), 57 states have call successors, (57), 29 states have call predecessors, (57), 32 states have return successors, (75), 54 states have call predecessors, (75), 56 states have call successors, (75) [2024-10-24 03:00:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1072 transitions. [2024-10-24 03:00:04,122 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1072 transitions. Word has length 60 [2024-10-24 03:00:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:04,123 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1072 transitions. [2024-10-24 03:00:04,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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) [2024-10-24 03:00:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1072 transitions. [2024-10-24 03:00:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-24 03:00:04,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:04,124 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:04,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:00:04,125 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:04,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash 375967649, now seen corresponding path program 1 times [2024-10-24 03:00:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:04,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440112632] [2024-10-24 03:00:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:04,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:04,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:04,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440112632] [2024-10-24 03:00:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440112632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254638370] [2024-10-24 03:00:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:04,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:04,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:04,261 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) [2024-10-24 03:00:04,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 03:00:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:04,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:00:04,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:04,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:00:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:04,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254638370] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:00:04,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:00:04,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 8 [2024-10-24 03:00:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822847621] [2024-10-24 03:00:04,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:00:04,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:00:04,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:04,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:00:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:00:04,686 INFO L87 Difference]: Start difference. First operand 764 states and 1072 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-24 03:00:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:05,550 INFO L93 Difference]: Finished difference Result 1567 states and 2107 transitions. [2024-10-24 03:00:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 03:00:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 61 [2024-10-24 03:00:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:05,558 INFO L225 Difference]: With dead ends: 1567 [2024-10-24 03:00:05,559 INFO L226 Difference]: Without dead ends: 1564 [2024-10-24 03:00:05,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:00:05,560 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 816 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:05,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1655 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:00:05,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-10-24 03:00:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1067. [2024-10-24 03:00:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 940 states have (on average 1.3680851063829786) internal successors, (1286), 954 states have internal predecessors, (1286), 76 states have call successors, (76), 42 states have call predecessors, (76), 49 states have return successors, (105), 71 states have call predecessors, (105), 75 states have call successors, (105) [2024-10-24 03:00:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1467 transitions. [2024-10-24 03:00:05,654 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1467 transitions. Word has length 61 [2024-10-24 03:00:05,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:05,655 INFO L471 AbstractCegarLoop]: Abstraction has 1067 states and 1467 transitions. [2024-10-24 03:00:05,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-24 03:00:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1467 transitions. [2024-10-24 03:00:05,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 03:00:05,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:05,658 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:05,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 03:00:05,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:05,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:05,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:05,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1733838974, now seen corresponding path program 2 times [2024-10-24 03:00:05,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:05,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020883434] [2024-10-24 03:00:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:05,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:05,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:05,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:05,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:05,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 03:00:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 03:00:05,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:05,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020883434] [2024-10-24 03:00:05,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020883434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:05,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:05,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:05,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307786370] [2024-10-24 03:00:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:05,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:05,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:05,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:05,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:05,929 INFO L87 Difference]: Start difference. First operand 1067 states and 1467 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 03:00:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:06,364 INFO L93 Difference]: Finished difference Result 1695 states and 2284 transitions. [2024-10-24 03:00:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2024-10-24 03:00:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:06,371 INFO L225 Difference]: With dead ends: 1695 [2024-10-24 03:00:06,371 INFO L226 Difference]: Without dead ends: 1036 [2024-10-24 03:00:06,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:06,374 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 670 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:06,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 589 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-10-24 03:00:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 959. [2024-10-24 03:00:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 845 states have (on average 1.370414201183432) internal successors, (1158), 859 states have internal predecessors, (1158), 69 states have call successors, (69), 37 states have call predecessors, (69), 43 states have return successors, (94), 63 states have call predecessors, (94), 68 states have call successors, (94) [2024-10-24 03:00:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1321 transitions. [2024-10-24 03:00:06,436 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1321 transitions. Word has length 78 [2024-10-24 03:00:06,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:06,437 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1321 transitions. [2024-10-24 03:00:06,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 03:00:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1321 transitions. [2024-10-24 03:00:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 03:00:06,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:06,441 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:06,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:00:06,443 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:06,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1238688027, now seen corresponding path program 1 times [2024-10-24 03:00:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:06,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274929414] [2024-10-24 03:00:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 03:00:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 03:00:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 03:00:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-24 03:00:06,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274929414] [2024-10-24 03:00:06,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274929414] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:06,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814413034] [2024-10-24 03:00:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:06,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:06,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:06,587 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) [2024-10-24 03:00:06,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 03:00:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:06,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 03:00:06,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 03:00:06,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814413034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:06,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:06,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-24 03:00:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948640106] [2024-10-24 03:00:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:06,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:00:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:00:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:00:06,722 INFO L87 Difference]: Start difference. First operand 959 states and 1321 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, (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) [2024-10-24 03:00:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:06,824 INFO L93 Difference]: Finished difference Result 1242 states and 1677 transitions. [2024-10-24 03:00:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:00:06,825 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, (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 92 [2024-10-24 03:00:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:06,827 INFO L225 Difference]: With dead ends: 1242 [2024-10-24 03:00:06,827 INFO L226 Difference]: Without dead ends: 255 [2024-10-24 03:00:06,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:00:06,829 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 55 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:06,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 920 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-24 03:00:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-10-24 03:00:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 227 states have internal predecessors, (365), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 03:00:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 409 transitions. [2024-10-24 03:00:06,844 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 409 transitions. Word has length 92 [2024-10-24 03:00:06,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:06,844 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 409 transitions. [2024-10-24 03:00:06,844 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, (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) [2024-10-24 03:00:06,845 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 409 transitions. [2024-10-24 03:00:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:06,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:06,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:06,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 03:00:07,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:07,050 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:07,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:07,050 INFO L85 PathProgramCache]: Analyzing trace with hash 462683613, now seen corresponding path program 1 times [2024-10-24 03:00:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:07,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757163956] [2024-10-24 03:00:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:07,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:07,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757163956] [2024-10-24 03:00:07,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757163956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:07,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:07,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:00:07,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753863342] [2024-10-24 03:00:07,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:07,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:00:07,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:07,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:00:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:07,192 INFO L87 Difference]: Start difference. First operand 255 states and 409 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-10-24 03:00:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:08,329 INFO L93 Difference]: Finished difference Result 593 states and 968 transitions. [2024-10-24 03:00:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:00:08,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:08,332 INFO L225 Difference]: With dead ends: 593 [2024-10-24 03:00:08,332 INFO L226 Difference]: Without dead ends: 345 [2024-10-24 03:00:08,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:00:08,334 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 691 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:08,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 458 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:00:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-24 03:00:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 255. [2024-10-24 03:00:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 226 states have (on average 1.6106194690265487) internal successors, (364), 227 states have internal predecessors, (364), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 03:00:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 408 transitions. [2024-10-24 03:00:08,353 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 408 transitions. Word has length 121 [2024-10-24 03:00:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:08,354 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 408 transitions. [2024-10-24 03:00:08,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-10-24 03:00:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 408 transitions. [2024-10-24 03:00:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:08,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:08,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:08,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:00:08,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:08,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:08,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1264461349, now seen corresponding path program 1 times [2024-10-24 03:00:08,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:08,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488395627] [2024-10-24 03:00:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:08,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:08,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:08,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488395627] [2024-10-24 03:00:08,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488395627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:08,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:08,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:00:08,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047376719] [2024-10-24 03:00:08,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:08,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:00:08,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:08,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:00:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:00:08,560 INFO L87 Difference]: Start difference. First operand 255 states and 408 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-10-24 03:00:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:10,480 INFO L93 Difference]: Finished difference Result 926 states and 1518 transitions. [2024-10-24 03:00:10,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:00:10,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:10,484 INFO L225 Difference]: With dead ends: 926 [2024-10-24 03:00:10,484 INFO L226 Difference]: Without dead ends: 686 [2024-10-24 03:00:10,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:10,486 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1047 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:10,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 771 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:00:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-24 03:00:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 507. [2024-10-24 03:00:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.6211453744493391) internal successors, (736), 456 states have internal predecessors, (736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-10-24 03:00:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 817 transitions. [2024-10-24 03:00:10,522 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 817 transitions. Word has length 121 [2024-10-24 03:00:10,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:10,522 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 817 transitions. [2024-10-24 03:00:10,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-10-24 03:00:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 817 transitions. [2024-10-24 03:00:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:10,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:10,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:10,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:00:10,524 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:10,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash -719172837, now seen corresponding path program 1 times [2024-10-24 03:00:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568912663] [2024-10-24 03:00:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568912663] [2024-10-24 03:00:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568912663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105616760] [2024-10-24 03:00:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:10,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:10,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:10,778 INFO L87 Difference]: Start difference. First operand 507 states and 817 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:13,135 INFO L93 Difference]: Finished difference Result 1531 states and 2508 transitions. [2024-10-24 03:00:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:00:13,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:13,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:13,141 INFO L225 Difference]: With dead ends: 1531 [2024-10-24 03:00:13,141 INFO L226 Difference]: Without dead ends: 1039 [2024-10-24 03:00:13,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:00:13,143 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 1143 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:13,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1024 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 03:00:13,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-10-24 03:00:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 740. [2024-10-24 03:00:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 663 states have (on average 1.6138763197586727) internal successors, (1070), 666 states have internal predecessors, (1070), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-24 03:00:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1187 transitions. [2024-10-24 03:00:13,200 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1187 transitions. Word has length 121 [2024-10-24 03:00:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:13,200 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1187 transitions. [2024-10-24 03:00:13,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1187 transitions. [2024-10-24 03:00:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:13,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:13,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:13,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:00:13,202 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:13,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1542400413, now seen corresponding path program 1 times [2024-10-24 03:00:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985399767] [2024-10-24 03:00:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985399767] [2024-10-24 03:00:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985399767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:13,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:13,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330361091] [2024-10-24 03:00:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:13,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:13,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:13,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:13,391 INFO L87 Difference]: Start difference. First operand 740 states and 1187 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:14,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:14,709 INFO L93 Difference]: Finished difference Result 1774 states and 2904 transitions. [2024-10-24 03:00:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:14,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:14,716 INFO L225 Difference]: With dead ends: 1774 [2024-10-24 03:00:14,716 INFO L226 Difference]: Without dead ends: 1049 [2024-10-24 03:00:14,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:14,719 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 774 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:14,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 744 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:00:14,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-10-24 03:00:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 740. [2024-10-24 03:00:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 663 states have (on average 1.6093514328808447) internal successors, (1067), 666 states have internal predecessors, (1067), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-24 03:00:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1184 transitions. [2024-10-24 03:00:14,776 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1184 transitions. Word has length 121 [2024-10-24 03:00:14,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:14,776 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1184 transitions. [2024-10-24 03:00:14,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1184 transitions. [2024-10-24 03:00:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:14,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:14,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:14,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:00:14,779 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:14,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash 235258015, now seen corresponding path program 1 times [2024-10-24 03:00:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:14,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904895614] [2024-10-24 03:00:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:14,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:14,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:14,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904895614] [2024-10-24 03:00:14,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904895614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:14,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:14,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:14,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680516346] [2024-10-24 03:00:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:14,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:14,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:14,990 INFO L87 Difference]: Start difference. First operand 740 states and 1184 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:16,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:16,097 INFO L93 Difference]: Finished difference Result 1770 states and 2887 transitions. [2024-10-24 03:00:16,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:16,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:16,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:16,110 INFO L225 Difference]: With dead ends: 1770 [2024-10-24 03:00:16,111 INFO L226 Difference]: Without dead ends: 1045 [2024-10-24 03:00:16,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:16,113 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 881 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:16,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 625 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:00:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-10-24 03:00:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 740. [2024-10-24 03:00:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 663 states have (on average 1.6048265460030167) internal successors, (1064), 666 states have internal predecessors, (1064), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-24 03:00:16,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1181 transitions. [2024-10-24 03:00:16,174 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1181 transitions. Word has length 121 [2024-10-24 03:00:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:16,175 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1181 transitions. [2024-10-24 03:00:16,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1181 transitions. [2024-10-24 03:00:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:16,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:16,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:00:16,177 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2132754781, now seen corresponding path program 1 times [2024-10-24 03:00:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528423087] [2024-10-24 03:00:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:16,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:16,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528423087] [2024-10-24 03:00:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528423087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:16,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:16,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939643266] [2024-10-24 03:00:16,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:16,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:16,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:16,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:16,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:16,373 INFO L87 Difference]: Start difference. First operand 740 states and 1181 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:17,432 INFO L93 Difference]: Finished difference Result 1766 states and 2870 transitions. [2024-10-24 03:00:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:17,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:17,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:17,438 INFO L225 Difference]: With dead ends: 1766 [2024-10-24 03:00:17,438 INFO L226 Difference]: Without dead ends: 1041 [2024-10-24 03:00:17,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:17,442 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 879 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:17,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 625 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:00:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-10-24 03:00:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 740. [2024-10-24 03:00:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 663 states have (on average 1.6003016591251886) internal successors, (1061), 666 states have internal predecessors, (1061), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-24 03:00:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1178 transitions. [2024-10-24 03:00:17,504 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1178 transitions. Word has length 121 [2024-10-24 03:00:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:17,504 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1178 transitions. [2024-10-24 03:00:17,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1178 transitions. [2024-10-24 03:00:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:17,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:17,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:17,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:00:17,506 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:17,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:17,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1131171617, now seen corresponding path program 1 times [2024-10-24 03:00:17,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:17,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178976490] [2024-10-24 03:00:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:17,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:17,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:17,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:17,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178976490] [2024-10-24 03:00:17,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178976490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:17,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:17,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:17,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674804913] [2024-10-24 03:00:17,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:17,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:17,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:17,719 INFO L87 Difference]: Start difference. First operand 740 states and 1178 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:19,915 INFO L93 Difference]: Finished difference Result 2404 states and 3884 transitions. [2024-10-24 03:00:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:00:19,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:19,926 INFO L225 Difference]: With dead ends: 2404 [2024-10-24 03:00:19,926 INFO L226 Difference]: Without dead ends: 1679 [2024-10-24 03:00:19,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:00:19,929 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 1062 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:19,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1454 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 03:00:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-10-24 03:00:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1219. [2024-10-24 03:00:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1094 states have (on average 1.5923217550274222) internal successors, (1742), 1099 states have internal predecessors, (1742), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-24 03:00:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1935 transitions. [2024-10-24 03:00:20,051 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1935 transitions. Word has length 121 [2024-10-24 03:00:20,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:20,051 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1935 transitions. [2024-10-24 03:00:20,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1935 transitions. [2024-10-24 03:00:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:20,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:20,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:20,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:00:20,054 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:20,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:20,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1257392413, now seen corresponding path program 1 times [2024-10-24 03:00:20,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:20,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367183358] [2024-10-24 03:00:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:20,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:20,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367183358] [2024-10-24 03:00:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367183358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:20,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943599730] [2024-10-24 03:00:20,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:20,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:20,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:20,231 INFO L87 Difference]: Start difference. First operand 1219 states and 1935 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:21,564 INFO L93 Difference]: Finished difference Result 2870 states and 4629 transitions. [2024-10-24 03:00:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:21,574 INFO L225 Difference]: With dead ends: 2870 [2024-10-24 03:00:21,574 INFO L226 Difference]: Without dead ends: 1666 [2024-10-24 03:00:21,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:21,579 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 769 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:21,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 744 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:00:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-10-24 03:00:21,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1219. [2024-10-24 03:00:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1094 states have (on average 1.5877513711151736) internal successors, (1737), 1099 states have internal predecessors, (1737), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-24 03:00:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1930 transitions. [2024-10-24 03:00:21,689 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1930 transitions. Word has length 121 [2024-10-24 03:00:21,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:21,690 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1930 transitions. [2024-10-24 03:00:21,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1930 transitions. [2024-10-24 03:00:21,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:21,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:21,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:21,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:00:21,692 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:21,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:21,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1436503777, now seen corresponding path program 1 times [2024-10-24 03:00:21,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:21,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748902614] [2024-10-24 03:00:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:21,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:21,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:21,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748902614] [2024-10-24 03:00:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748902614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:21,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:21,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958787500] [2024-10-24 03:00:21,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:21,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:21,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:21,931 INFO L87 Difference]: Start difference. First operand 1219 states and 1930 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:24,332 INFO L93 Difference]: Finished difference Result 4105 states and 6581 transitions. [2024-10-24 03:00:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:00:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:24,344 INFO L225 Difference]: With dead ends: 4105 [2024-10-24 03:00:24,345 INFO L226 Difference]: Without dead ends: 2901 [2024-10-24 03:00:24,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:00:24,349 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 1050 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:24,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1454 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:00:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2024-10-24 03:00:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2177. [2024-10-24 03:00:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2177 states, 1956 states have (on average 1.579243353783231) internal successors, (3089), 1965 states have internal predecessors, (3089), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-10-24 03:00:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2177 states to 2177 states and 3440 transitions. [2024-10-24 03:00:24,543 INFO L78 Accepts]: Start accepts. Automaton has 2177 states and 3440 transitions. Word has length 121 [2024-10-24 03:00:24,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:24,543 INFO L471 AbstractCegarLoop]: Abstraction has 2177 states and 3440 transitions. [2024-10-24 03:00:24,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2177 states and 3440 transitions. [2024-10-24 03:00:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:24,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:24,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:24,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:00:24,546 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:24,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1801732317, now seen corresponding path program 1 times [2024-10-24 03:00:24,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:24,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917583254] [2024-10-24 03:00:24,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:24,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:24,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:24,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917583254] [2024-10-24 03:00:24,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917583254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:24,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:24,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:24,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113272801] [2024-10-24 03:00:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:24,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:24,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:24,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:24,789 INFO L87 Difference]: Start difference. First operand 2177 states and 3440 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:27,133 INFO L93 Difference]: Finished difference Result 8345 states and 13367 transitions. [2024-10-24 03:00:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:00:27,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:27,165 INFO L225 Difference]: With dead ends: 8345 [2024-10-24 03:00:27,165 INFO L226 Difference]: Without dead ends: 6183 [2024-10-24 03:00:27,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:00:27,176 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1415 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:27,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 933 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:00:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6183 states. [2024-10-24 03:00:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6183 to 4082. [2024-10-24 03:00:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 3677 states have (on average 1.5749252107696492) internal successors, (5791), 3694 states have internal predecessors, (5791), 286 states have call successors, (286), 102 states have call predecessors, (286), 118 states have return successors, (383), 301 states have call predecessors, (383), 286 states have call successors, (383) [2024-10-24 03:00:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 6460 transitions. [2024-10-24 03:00:27,592 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 6460 transitions. Word has length 121 [2024-10-24 03:00:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:27,593 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 6460 transitions. [2024-10-24 03:00:27,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 6460 transitions. [2024-10-24 03:00:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:27,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:27,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:27,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:00:27,597 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:27,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:27,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1141849761, now seen corresponding path program 1 times [2024-10-24 03:00:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:27,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294691035] [2024-10-24 03:00:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:27,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294691035] [2024-10-24 03:00:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294691035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:27,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874655653] [2024-10-24 03:00:27,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:27,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:27,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:27,819 INFO L87 Difference]: Start difference. First operand 4082 states and 6460 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:29,084 INFO L93 Difference]: Finished difference Result 9416 states and 15114 transitions. [2024-10-24 03:00:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:29,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:29,120 INFO L225 Difference]: With dead ends: 9416 [2024-10-24 03:00:29,121 INFO L226 Difference]: Without dead ends: 5349 [2024-10-24 03:00:29,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:29,136 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 880 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:29,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 624 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:00:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2024-10-24 03:00:29,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 4082. [2024-10-24 03:00:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 3677 states have (on average 1.5703018765297798) internal successors, (5774), 3694 states have internal predecessors, (5774), 286 states have call successors, (286), 102 states have call predecessors, (286), 118 states have return successors, (383), 301 states have call predecessors, (383), 286 states have call successors, (383) [2024-10-24 03:00:29,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 6443 transitions. [2024-10-24 03:00:29,516 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 6443 transitions. Word has length 121 [2024-10-24 03:00:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:29,516 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 6443 transitions. [2024-10-24 03:00:29,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 6443 transitions. [2024-10-24 03:00:29,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:29,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:29,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:29,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:00:29,526 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:29,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2025358751, now seen corresponding path program 1 times [2024-10-24 03:00:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:29,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623483153] [2024-10-24 03:00:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:29,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:29,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623483153] [2024-10-24 03:00:29,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623483153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:29,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:29,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:29,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819370731] [2024-10-24 03:00:29,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:29,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:29,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:29,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:29,705 INFO L87 Difference]: Start difference. First operand 4082 states and 6443 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:32,568 INFO L93 Difference]: Finished difference Result 15364 states and 24581 transitions. [2024-10-24 03:00:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:00:32,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:32,606 INFO L225 Difference]: With dead ends: 15364 [2024-10-24 03:00:32,606 INFO L226 Difference]: Without dead ends: 11297 [2024-10-24 03:00:32,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:00:32,622 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1232 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:32,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1447 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 03:00:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11297 states. [2024-10-24 03:00:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11297 to 7925. [2024-10-24 03:00:33,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7925 states, 7160 states have (on average 1.5681564245810056) internal successors, (11228), 7193 states have internal predecessors, (11228), 534 states have call successors, (534), 198 states have call predecessors, (534), 230 states have return successors, (809), 565 states have call predecessors, (809), 534 states have call successors, (809) [2024-10-24 03:00:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 12571 transitions. [2024-10-24 03:00:33,434 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 12571 transitions. Word has length 121 [2024-10-24 03:00:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:33,434 INFO L471 AbstractCegarLoop]: Abstraction has 7925 states and 12571 transitions. [2024-10-24 03:00:33,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 12571 transitions. [2024-10-24 03:00:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:33,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:33,442 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:33,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:00:33,442 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:33,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2053859041, now seen corresponding path program 1 times [2024-10-24 03:00:33,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:33,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647087796] [2024-10-24 03:00:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:33,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:33,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647087796] [2024-10-24 03:00:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647087796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:33,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:33,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:33,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90205620] [2024-10-24 03:00:33,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:33,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:33,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:33,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:33,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:33,621 INFO L87 Difference]: Start difference. First operand 7925 states and 12571 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:37,355 INFO L93 Difference]: Finished difference Result 29589 states and 47559 transitions. [2024-10-24 03:00:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:00:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:37,432 INFO L225 Difference]: With dead ends: 29589 [2024-10-24 03:00:37,432 INFO L226 Difference]: Without dead ends: 21679 [2024-10-24 03:00:37,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:00:37,463 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1080 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:37,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1447 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:00:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21679 states. [2024-10-24 03:00:39,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21679 to 15606. [2024-10-24 03:00:39,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15606 states, 14137 states have (on average 1.5673763882011742) internal successors, (22158), 14202 states have internal predecessors, (22158), 1014 states have call successors, (1014), 390 states have call predecessors, (1014), 454 states have return successors, (1807), 1077 states have call predecessors, (1807), 1014 states have call successors, (1807) [2024-10-24 03:00:39,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15606 states to 15606 states and 24979 transitions. [2024-10-24 03:00:39,189 INFO L78 Accepts]: Start accepts. Automaton has 15606 states and 24979 transitions. Word has length 121 [2024-10-24 03:00:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:39,189 INFO L471 AbstractCegarLoop]: Abstraction has 15606 states and 24979 transitions. [2024-10-24 03:00:39,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 15606 states and 24979 transitions. [2024-10-24 03:00:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:39,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:39,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:39,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:00:39,205 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:39,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash 300526241, now seen corresponding path program 1 times [2024-10-24 03:00:39,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:39,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487706304] [2024-10-24 03:00:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:39,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:39,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:39,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487706304] [2024-10-24 03:00:39,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487706304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:39,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:39,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:39,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926308973] [2024-10-24 03:00:39,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:39,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:39,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:39,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:39,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:39,397 INFO L87 Difference]: Start difference. First operand 15606 states and 24979 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:41,842 INFO L93 Difference]: Finished difference Result 35450 states and 57611 transitions. [2024-10-24 03:00:41,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:00:41,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:41,922 INFO L225 Difference]: With dead ends: 35450 [2024-10-24 03:00:41,923 INFO L226 Difference]: Without dead ends: 19859 [2024-10-24 03:00:41,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:00:41,967 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 880 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:41,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 624 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:00:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19859 states. [2024-10-24 03:00:43,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19859 to 15606. [2024-10-24 03:00:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15606 states, 14137 states have (on average 1.5627785244394143) internal successors, (22093), 14202 states have internal predecessors, (22093), 1014 states have call successors, (1014), 390 states have call predecessors, (1014), 454 states have return successors, (1807), 1077 states have call predecessors, (1807), 1014 states have call successors, (1807) [2024-10-24 03:00:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15606 states to 15606 states and 24914 transitions. [2024-10-24 03:00:43,255 INFO L78 Accepts]: Start accepts. Automaton has 15606 states and 24914 transitions. Word has length 121 [2024-10-24 03:00:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:43,255 INFO L471 AbstractCegarLoop]: Abstraction has 15606 states and 24914 transitions. [2024-10-24 03:00:43,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15606 states and 24914 transitions. [2024-10-24 03:00:43,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:43,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:43,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:43,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:00:43,266 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:43,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2117377825, now seen corresponding path program 1 times [2024-10-24 03:00:43,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:43,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922460048] [2024-10-24 03:00:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:43,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:43,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:43,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922460048] [2024-10-24 03:00:43,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922460048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:43,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:43,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:43,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448754068] [2024-10-24 03:00:43,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:43,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:43,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:43,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:43,431 INFO L87 Difference]: Start difference. First operand 15606 states and 24914 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:49,036 INFO L93 Difference]: Finished difference Result 56722 states and 91717 transitions. [2024-10-24 03:00:49,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:00:49,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:00:49,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:49,179 INFO L225 Difference]: With dead ends: 56722 [2024-10-24 03:00:49,180 INFO L226 Difference]: Without dead ends: 41131 [2024-10-24 03:00:49,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:00:49,225 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1054 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:49,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1447 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:00:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41131 states. [2024-10-24 03:00:52,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41131 to 31032. [2024-10-24 03:00:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31032 states, 28187 states have (on average 1.5616064143044666) internal successors, (44017), 28316 states have internal predecessors, (44017), 1942 states have call successors, (1942), 774 states have call predecessors, (1942), 902 states have return successors, (4257), 2069 states have call predecessors, (4257), 1942 states have call successors, (4257) [2024-10-24 03:00:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31032 states to 31032 states and 50216 transitions. [2024-10-24 03:00:52,538 INFO L78 Accepts]: Start accepts. Automaton has 31032 states and 50216 transitions. Word has length 121 [2024-10-24 03:00:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:52,538 INFO L471 AbstractCegarLoop]: Abstraction has 31032 states and 50216 transitions. [2024-10-24 03:00:52,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:00:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 31032 states and 50216 transitions. [2024-10-24 03:00:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:00:52,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:52,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:52,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:00:52,559 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:52,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1406855905, now seen corresponding path program 1 times [2024-10-24 03:00:52,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:52,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030528238] [2024-10-24 03:00:52,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:52,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:00:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:00:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:00:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:52,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:52,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030528238] [2024-10-24 03:00:52,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030528238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:52,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:52,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:00:52,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426676753] [2024-10-24 03:00:52,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:52,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:00:52,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:52,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:00:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:00:52,724 INFO L87 Difference]: Start difference. First operand 31032 states and 50216 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:01:00,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:00,924 INFO L93 Difference]: Finished difference Result 110930 states and 181997 transitions. [2024-10-24 03:01:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:01:00,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2024-10-24 03:01:00,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:01,310 INFO L225 Difference]: With dead ends: 110930 [2024-10-24 03:01:01,310 INFO L226 Difference]: Without dead ends: 79913 [2024-10-24 03:01:01,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:01:01,378 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1082 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:01,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1447 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:01:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79913 states. [2024-10-24 03:01:06,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79913 to 61881. [2024-10-24 03:01:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61881 states, 56348 states have (on average 1.56149286576276) internal successors, (87987), 56605 states have internal predecessors, (87987), 3734 states have call successors, (3734), 1542 states have call predecessors, (3734), 1798 states have return successors, (10551), 3989 states have call predecessors, (10551), 3734 states have call successors, (10551) [2024-10-24 03:01:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61881 states to 61881 states and 102272 transitions. [2024-10-24 03:01:07,099 INFO L78 Accepts]: Start accepts. Automaton has 61881 states and 102272 transitions. Word has length 121 [2024-10-24 03:01:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:07,100 INFO L471 AbstractCegarLoop]: Abstraction has 61881 states and 102272 transitions. [2024-10-24 03:01:07,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-24 03:01:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 61881 states and 102272 transitions. [2024-10-24 03:01:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:01:07,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:07,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:01:07,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:01:07,127 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:07,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash 412162207, now seen corresponding path program 1 times [2024-10-24 03:01:07,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:07,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288915050] [2024-10-24 03:01:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:07,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:01:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:01:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:01:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:01:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:07,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288915050] [2024-10-24 03:01:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288915050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317975604] [2024-10-24 03:01:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:07,279 INFO L87 Difference]: Start difference. First operand 61881 states and 102272 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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)