./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_2.cil-1+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_2.cil-1+token_ring.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 284334fdd31c4c26d16d0bf558a458f462d11a8d54419841fe6fc9cdbb9a1cfc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 05:11:35,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 05:11:35,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 05:11:35,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 05:11:35,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 05:11:35,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 05:11:35,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 05:11:35,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 05:11:35,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 05:11:35,816 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 05:11:35,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 05:11:35,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 05:11:35,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 05:11:35,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 05:11:35,818 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 05:11:35,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 05:11:35,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 05:11:35,820 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 05:11:35,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 05:11:35,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 05:11:35,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 05:11:35,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 05:11:35,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 05:11:35,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 05:11:35,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 05:11:35,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 05:11:35,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 05:11:35,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 05:11:35,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 05:11:35,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 05:11:35,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 05:11:35,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 05:11:35,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:11:35,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 05:11:35,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 05:11:35,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 05:11:35,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 05:11:35,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 05:11:35,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 05:11:35,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 05:11:35,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 05:11:35,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 05:11:35,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 284334fdd31c4c26d16d0bf558a458f462d11a8d54419841fe6fc9cdbb9a1cfc [2024-10-14 05:11:36,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 05:11:36,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 05:11:36,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 05:11:36,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 05:11:36,117 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 05:11:36,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-10-14 05:11:37,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 05:11:37,802 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 05:11:37,803 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-10-14 05:11:37,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a875b862/f9ad8ea50a064c8ea469d7bf0e165e5e/FLAGd423cc4a0 [2024-10-14 05:11:37,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a875b862/f9ad8ea50a064c8ea469d7bf0e165e5e [2024-10-14 05:11:37,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 05:11:37,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 05:11:37,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 05:11:37,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 05:11:37,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 05:11:37,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:11:37" (1/1) ... [2024-10-14 05:11:37,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ae6850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:37, skipping insertion in model container [2024-10-14 05:11:37,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:11:37" (1/1) ... [2024-10-14 05:11:37,895 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 05:11:38,042 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_2.cil-1+token_ring.04.cil-1.c[914,927] [2024-10-14 05:11:38,097 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_2.cil-1+token_ring.04.cil-1.c[7115,7128] [2024-10-14 05:11:38,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:11:38,162 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 05:11:38,193 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_2.cil-1+token_ring.04.cil-1.c[914,927] [2024-10-14 05:11:38,222 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_2.cil-1+token_ring.04.cil-1.c[7115,7128] [2024-10-14 05:11:38,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:11:38,298 INFO L204 MainTranslator]: Completed translation [2024-10-14 05:11:38,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38 WrapperNode [2024-10-14 05:11:38,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 05:11:38,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 05:11:38,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 05:11:38,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 05:11:38,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,352 INFO L138 Inliner]: procedures = 61, calls = 69, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 588 [2024-10-14 05:11:38,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 05:11:38,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 05:11:38,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 05:11:38,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 05:11:38,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,383 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]. [2024-10-14 05:11:38,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 05:11:38,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 05:11:38,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 05:11:38,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 05:11:38,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (1/1) ... [2024-10-14 05:11:38,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:11:38,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:11:38,456 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) [2024-10-14 05:11:38,459 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 [2024-10-14 05:11:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 05:11:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 05:11:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 05:11:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-10-14 05:11:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-10-14 05:11:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-14 05:11:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-14 05:11:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-14 05:11:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-14 05:11:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-10-14 05:11:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-10-14 05:11:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-14 05:11:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-14 05:11:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-10-14 05:11:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-10-14 05:11:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-10-14 05:11:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-14 05:11:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-14 05:11:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 05:11:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-14 05:11:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-14 05:11:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-10-14 05:11:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-10-14 05:11:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 05:11:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 05:11:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-14 05:11:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-14 05:11:38,638 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 05:11:38,641 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 05:11:39,294 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-10-14 05:11:39,296 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 05:11:39,353 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 05:11:39,353 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-14 05:11:39,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:11:39 BoogieIcfgContainer [2024-10-14 05:11:39,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 05:11:39,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 05:11:39,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 05:11:39,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 05:11:39,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:11:37" (1/3) ... [2024-10-14 05:11:39,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fef73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:11:39, skipping insertion in model container [2024-10-14 05:11:39,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:38" (2/3) ... [2024-10-14 05:11:39,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fef73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:11:39, skipping insertion in model container [2024-10-14 05:11:39,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:11:39" (3/3) ... [2024-10-14 05:11:39,361 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-10-14 05:11:39,376 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 05:11:39,377 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 05:11:39,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 05:11:39,482 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;@6c30f7ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 05:11:39,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 05:11:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 255 states, 206 states have (on average 1.6650485436893203) internal successors, (343), 212 states have internal predecessors, (343), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 05:11:39,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:39,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:39,503 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] [2024-10-14 05:11:39,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:39,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash 504153522, now seen corresponding path program 1 times [2024-10-14 05:11:39,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:39,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32986511] [2024-10-14 05:11:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:39,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:40,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:40,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32986511] [2024-10-14 05:11:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32986511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:40,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:40,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:11:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984942504] [2024-10-14 05:11:40,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:40,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:11:40,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:11:40,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:11:40,232 INFO L87 Difference]: Start difference. First operand has 255 states, 206 states have (on average 1.6650485436893203) internal successors, (343), 212 states have internal predecessors, (343), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:41,651 INFO L93 Difference]: Finished difference Result 647 states and 1025 transitions. [2024-10-14 05:11:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 05:11:41,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-14 05:11:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:41,674 INFO L225 Difference]: With dead ends: 647 [2024-10-14 05:11:41,674 INFO L226 Difference]: Without dead ends: 404 [2024-10-14 05:11:41,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:11:41,686 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 804 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:41,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1226 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 05:11:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-14 05:11:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 342. [2024-10-14 05:11:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 274 states have (on average 1.5255474452554745) internal successors, (418), 281 states have internal predecessors, (418), 43 states have call successors, (43), 21 states have call predecessors, (43), 23 states have return successors, (52), 42 states have call predecessors, (52), 41 states have call successors, (52) [2024-10-14 05:11:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 513 transitions. [2024-10-14 05:11:41,821 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 513 transitions. Word has length 58 [2024-10-14 05:11:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:41,821 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 513 transitions. [2024-10-14 05:11:41,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 513 transitions. [2024-10-14 05:11:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:41,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:41,825 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] [2024-10-14 05:11:41,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 05:11:41,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:41,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:41,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1862541072, now seen corresponding path program 1 times [2024-10-14 05:11:41,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:41,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58174151] [2024-10-14 05:11:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:41,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:41,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:41,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:42,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:42,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58174151] [2024-10-14 05:11:42,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58174151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:11:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973981301] [2024-10-14 05:11:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:11:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:42,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:11:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:11:42,067 INFO L87 Difference]: Start difference. First operand 342 states and 513 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-14 05:11:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:43,884 INFO L93 Difference]: Finished difference Result 1219 states and 1772 transitions. [2024-10-14 05:11:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 05:11:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 58 [2024-10-14 05:11:43,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:43,906 INFO L225 Difference]: With dead ends: 1219 [2024-10-14 05:11:43,907 INFO L226 Difference]: Without dead ends: 1041 [2024-10-14 05:11:43,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 05:11:43,911 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 2292 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:43,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 1238 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 05:11:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-10-14 05:11:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 949. [2024-10-14 05:11:44,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 743 states have (on average 1.4481830417227457) internal successors, (1076), 763 states have internal predecessors, (1076), 110 states have call successors, (110), 81 states have call predecessors, (110), 94 states have return successors, (141), 107 states have call predecessors, (141), 108 states have call successors, (141) [2024-10-14 05:11:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1327 transitions. [2024-10-14 05:11:44,027 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1327 transitions. Word has length 58 [2024-10-14 05:11:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:44,028 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1327 transitions. [2024-10-14 05:11:44,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-14 05:11:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1327 transitions. [2024-10-14 05:11:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:44,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:44,035 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] [2024-10-14 05:11:44,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 05:11:44,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:44,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1475497841, now seen corresponding path program 1 times [2024-10-14 05:11:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006866423] [2024-10-14 05:11:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:44,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:44,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006866423] [2024-10-14 05:11:44,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006866423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:44,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:44,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:11:44,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562537706] [2024-10-14 05:11:44,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:44,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:11:44,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:44,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:11:44,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:11:44,204 INFO L87 Difference]: Start difference. First operand 949 states and 1327 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:45,118 INFO L93 Difference]: Finished difference Result 1785 states and 2469 transitions. [2024-10-14 05:11:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:11:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-14 05:11:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:45,128 INFO L225 Difference]: With dead ends: 1785 [2024-10-14 05:11:45,128 INFO L226 Difference]: Without dead ends: 1007 [2024-10-14 05:11:45,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:11:45,133 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 452 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:45,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1194 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 05:11:45,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-10-14 05:11:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 965. [2024-10-14 05:11:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 755 states have (on average 1.433112582781457) internal successors, (1082), 775 states have internal predecessors, (1082), 110 states have call successors, (110), 81 states have call predecessors, (110), 98 states have return successors, (145), 111 states have call predecessors, (145), 108 states have call successors, (145) [2024-10-14 05:11:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1337 transitions. [2024-10-14 05:11:45,223 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1337 transitions. Word has length 58 [2024-10-14 05:11:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:45,224 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1337 transitions. [2024-10-14 05:11:45,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1337 transitions. [2024-10-14 05:11:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:45,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:45,229 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] [2024-10-14 05:11:45,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 05:11:45,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:45,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash -768485457, now seen corresponding path program 1 times [2024-10-14 05:11:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:45,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133784887] [2024-10-14 05:11:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:45,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:45,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133784887] [2024-10-14 05:11:45,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133784887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:45,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:45,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:11:45,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392752405] [2024-10-14 05:11:45,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:45,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:11:45,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:11:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:11:45,408 INFO L87 Difference]: Start difference. First operand 965 states and 1337 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:46,315 INFO L93 Difference]: Finished difference Result 1849 states and 2535 transitions. [2024-10-14 05:11:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 05:11:46,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-14 05:11:46,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:46,321 INFO L225 Difference]: With dead ends: 1849 [2024-10-14 05:11:46,321 INFO L226 Difference]: Without dead ends: 1055 [2024-10-14 05:11:46,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:11:46,324 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 307 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:46,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1338 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 05:11:46,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-10-14 05:11:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1005. [2024-10-14 05:11:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 785 states have (on average 1.41656050955414) internal successors, (1112), 805 states have internal predecessors, (1112), 110 states have call successors, (110), 81 states have call predecessors, (110), 108 states have return successors, (155), 121 states have call predecessors, (155), 108 states have call successors, (155) [2024-10-14 05:11:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1377 transitions. [2024-10-14 05:11:46,403 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1377 transitions. Word has length 58 [2024-10-14 05:11:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:46,406 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1377 transitions. [2024-10-14 05:11:46,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:46,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1377 transitions. [2024-10-14 05:11:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:46,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:46,408 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] [2024-10-14 05:11:46,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 05:11:46,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:46,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:46,409 INFO L85 PathProgramCache]: Analyzing trace with hash -706445843, now seen corresponding path program 1 times [2024-10-14 05:11:46,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:46,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420264242] [2024-10-14 05:11:46,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:46,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:46,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420264242] [2024-10-14 05:11:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420264242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:46,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:46,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:11:46,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917450619] [2024-10-14 05:11:46,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:46,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:11:46,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:11:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:11:46,554 INFO L87 Difference]: Start difference. First operand 1005 states and 1377 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:47,465 INFO L93 Difference]: Finished difference Result 2051 states and 2769 transitions. [2024-10-14 05:11:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:11:47,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-14 05:11:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:47,473 INFO L225 Difference]: With dead ends: 2051 [2024-10-14 05:11:47,473 INFO L226 Difference]: Without dead ends: 1435 [2024-10-14 05:11:47,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 05:11:47,476 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 541 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:47,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1108 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 05:11:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-10-14 05:11:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1313. [2024-10-14 05:11:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1027 states have (on average 1.3836416747809153) internal successors, (1421), 1050 states have internal predecessors, (1421), 142 states have call successors, (142), 111 states have call predecessors, (142), 142 states have return successors, (192), 154 states have call predecessors, (192), 140 states have call successors, (192) [2024-10-14 05:11:47,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1755 transitions. [2024-10-14 05:11:47,587 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1755 transitions. Word has length 58 [2024-10-14 05:11:47,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:47,587 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1755 transitions. [2024-10-14 05:11:47,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1755 transitions. [2024-10-14 05:11:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:47,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:47,589 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] [2024-10-14 05:11:47,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 05:11:47,589 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:47,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash -487591125, now seen corresponding path program 1 times [2024-10-14 05:11:47,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:47,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852628587] [2024-10-14 05:11:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:47,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:47,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:47,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:47,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852628587] [2024-10-14 05:11:47,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852628587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:47,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:47,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:11:47,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254807845] [2024-10-14 05:11:47,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:47,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:11:47,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:47,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:11:47,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:11:47,767 INFO L87 Difference]: Start difference. First operand 1313 states and 1755 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:48,757 INFO L93 Difference]: Finished difference Result 2303 states and 3032 transitions. [2024-10-14 05:11:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 05:11:48,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-14 05:11:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:48,766 INFO L225 Difference]: With dead ends: 2303 [2024-10-14 05:11:48,767 INFO L226 Difference]: Without dead ends: 1379 [2024-10-14 05:11:48,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:11:48,773 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 914 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:48,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 825 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 05:11:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-10-14 05:11:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1228. [2024-10-14 05:11:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 965 states have (on average 1.3823834196891192) internal successors, (1334), 983 states have internal predecessors, (1334), 134 states have call successors, (134), 104 states have call predecessors, (134), 127 states have return successors, (170), 142 states have call predecessors, (170), 132 states have call successors, (170) [2024-10-14 05:11:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1638 transitions. [2024-10-14 05:11:48,891 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1638 transitions. Word has length 58 [2024-10-14 05:11:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:48,891 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1638 transitions. [2024-10-14 05:11:48,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1638 transitions. [2024-10-14 05:11:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 05:11:48,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:48,893 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] [2024-10-14 05:11:48,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 05:11:48,893 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:48,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash -64889299, now seen corresponding path program 1 times [2024-10-14 05:11:48,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916069953] [2024-10-14 05:11:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:48,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:48,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:48,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:48,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916069953] [2024-10-14 05:11:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916069953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:49,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:49,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:11:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908468531] [2024-10-14 05:11:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:49,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:11:49,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:11:49,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:11:49,016 INFO L87 Difference]: Start difference. First operand 1228 states and 1638 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:49,759 INFO L93 Difference]: Finished difference Result 3409 states and 4482 transitions. [2024-10-14 05:11:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 05:11:49,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-14 05:11:49,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:49,773 INFO L225 Difference]: With dead ends: 3409 [2024-10-14 05:11:49,774 INFO L226 Difference]: Without dead ends: 2352 [2024-10-14 05:11:49,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:11:49,779 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 909 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:49,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 661 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 05:11:49,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2024-10-14 05:11:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2216. [2024-10-14 05:11:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 1715 states have (on average 1.338192419825073) internal successors, (2295), 1748 states have internal predecessors, (2295), 249 states have call successors, (249), 201 states have call predecessors, (249), 250 states have return successors, (356), 269 states have call predecessors, (356), 247 states have call successors, (356) [2024-10-14 05:11:49,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 2900 transitions. [2024-10-14 05:11:49,987 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 2900 transitions. Word has length 58 [2024-10-14 05:11:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:49,988 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 2900 transitions. [2024-10-14 05:11:49,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 05:11:49,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 2900 transitions. [2024-10-14 05:11:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 05:11:49,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:49,989 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] [2024-10-14 05:11:49,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 05:11:49,989 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:49,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:49,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1823096331, now seen corresponding path program 1 times [2024-10-14 05:11:49,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:49,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590738853] [2024-10-14 05:11:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:49,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590738853] [2024-10-14 05:11:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590738853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:50,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:50,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:11:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465657109] [2024-10-14 05:11:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:50,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:11:50,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:50,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:11:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:11:50,097 INFO L87 Difference]: Start difference. First operand 2216 states and 2900 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:50,817 INFO L93 Difference]: Finished difference Result 5288 states and 6861 transitions. [2024-10-14 05:11:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 05:11:50,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2024-10-14 05:11:50,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:50,837 INFO L225 Difference]: With dead ends: 5288 [2024-10-14 05:11:50,837 INFO L226 Difference]: Without dead ends: 3246 [2024-10-14 05:11:50,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:11:50,843 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 902 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:50,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 526 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:11:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2024-10-14 05:11:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2969. [2024-10-14 05:11:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2284 states have (on average 1.3104203152364273) internal successors, (2993), 2330 states have internal predecessors, (2993), 342 states have call successors, (342), 283 states have call predecessors, (342), 341 states have return successors, (483), 358 states have call predecessors, (483), 340 states have call successors, (483) [2024-10-14 05:11:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 3818 transitions. [2024-10-14 05:11:51,101 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 3818 transitions. Word has length 59 [2024-10-14 05:11:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 2969 states and 3818 transitions. [2024-10-14 05:11:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 3818 transitions. [2024-10-14 05:11:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 05:11:51,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:51,103 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] [2024-10-14 05:11:51,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 05:11:51,104 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:51,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash -652593130, now seen corresponding path program 1 times [2024-10-14 05:11:51,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:51,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671102838] [2024-10-14 05:11:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:51,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:51,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671102838] [2024-10-14 05:11:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671102838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:51,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:51,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:11:51,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304999175] [2024-10-14 05:11:51,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:51,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:11:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:11:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:11:51,180 INFO L87 Difference]: Start difference. First operand 2969 states and 3818 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:52,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:52,059 INFO L93 Difference]: Finished difference Result 6692 states and 8607 transitions. [2024-10-14 05:11:52,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:11:52,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-10-14 05:11:52,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:52,083 INFO L225 Difference]: With dead ends: 6692 [2024-10-14 05:11:52,083 INFO L226 Difference]: Without dead ends: 4263 [2024-10-14 05:11:52,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:11:52,090 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 661 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:52,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 640 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 05:11:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2024-10-14 05:11:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 3954. [2024-10-14 05:11:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3029 states have (on average 1.2984483327830967) internal successors, (3933), 3074 states have internal predecessors, (3933), 465 states have call successors, (465), 389 states have call predecessors, (465), 458 states have return successors, (642), 493 states have call predecessors, (642), 463 states have call successors, (642) [2024-10-14 05:11:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5040 transitions. [2024-10-14 05:11:52,495 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5040 transitions. Word has length 60 [2024-10-14 05:11:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:52,495 INFO L471 AbstractCegarLoop]: Abstraction has 3954 states and 5040 transitions. [2024-10-14 05:11:52,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:11:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5040 transitions. [2024-10-14 05:11:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 05:11:52,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:52,498 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:11:52,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 05:11:52,498 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:52,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1591850236, now seen corresponding path program 1 times [2024-10-14 05:11:52,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:52,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911231032] [2024-10-14 05:11:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:52,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911231032] [2024-10-14 05:11:52,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911231032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:52,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:52,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:11:52,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931600980] [2024-10-14 05:11:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:52,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:11:52,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:11:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:11:52,592 INFO L87 Difference]: Start difference. First operand 3954 states and 5040 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-14 05:11:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:53,406 INFO L93 Difference]: Finished difference Result 4655 states and 5899 transitions. [2024-10-14 05:11:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 05:11:53,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2024-10-14 05:11:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:53,428 INFO L225 Difference]: With dead ends: 4655 [2024-10-14 05:11:53,428 INFO L226 Difference]: Without dead ends: 4652 [2024-10-14 05:11:53,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:11:53,430 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1224 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:53,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 526 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:11:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2024-10-14 05:11:53,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4071. [2024-10-14 05:11:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4071 states, 3131 states have (on average 1.2983072500798467) internal successors, (4065), 3177 states have internal predecessors, (4065), 472 states have call successors, (472), 397 states have call predecessors, (472), 466 states have return successors, (653), 499 states have call predecessors, (653), 471 states have call successors, (653) [2024-10-14 05:11:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5190 transitions. [2024-10-14 05:11:53,941 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5190 transitions. Word has length 67 [2024-10-14 05:11:53,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:53,941 INFO L471 AbstractCegarLoop]: Abstraction has 4071 states and 5190 transitions. [2024-10-14 05:11:53,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-14 05:11:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5190 transitions. [2024-10-14 05:11:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 05:11:53,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:53,943 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:11:53,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 05:11:53,944 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:53,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2101865471, now seen corresponding path program 1 times [2024-10-14 05:11:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:53,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537398238] [2024-10-14 05:11:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:54,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:54,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537398238] [2024-10-14 05:11:54,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537398238] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:11:54,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048359200] [2024-10-14 05:11:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:54,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:11:54,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:11:54,110 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) [2024-10-14 05:11:54,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 05:11:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:54,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 05:11:54,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:11:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:54,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:11:54,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:54,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048359200] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:11:54,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:11:54,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-10-14 05:11:54,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363984271] [2024-10-14 05:11:54,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:11:54,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:11:54,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:11:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:11:54,587 INFO L87 Difference]: Start difference. First operand 4071 states and 5190 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 05:11:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:56,538 INFO L93 Difference]: Finished difference Result 8849 states and 11120 transitions. [2024-10-14 05:11:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-14 05:11:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2024-10-14 05:11:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:56,575 INFO L225 Difference]: With dead ends: 8849 [2024-10-14 05:11:56,576 INFO L226 Difference]: Without dead ends: 8846 [2024-10-14 05:11:56,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-10-14 05:11:56,579 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1519 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:56,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 1271 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 05:11:56,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2024-10-14 05:11:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7195. [2024-10-14 05:11:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 5515 states have (on average 1.2892112420670898) internal successors, (7110), 5596 states have internal predecessors, (7110), 834 states have call successors, (834), 711 states have call predecessors, (834), 844 states have return successors, (1164), 890 states have call predecessors, (1164), 833 states have call successors, (1164) [2024-10-14 05:11:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 9108 transitions. [2024-10-14 05:11:57,533 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 9108 transitions. Word has length 68 [2024-10-14 05:11:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:57,533 INFO L471 AbstractCegarLoop]: Abstraction has 7195 states and 9108 transitions. [2024-10-14 05:11:57,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 05:11:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 9108 transitions. [2024-10-14 05:11:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 05:11:57,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:57,535 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:11:57,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 05:11:57,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 05:11:57,736 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:57,737 INFO L85 PathProgramCache]: Analyzing trace with hash -697886660, now seen corresponding path program 2 times [2024-10-14 05:11:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:57,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950246096] [2024-10-14 05:11:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:11:57,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950246096] [2024-10-14 05:11:57,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950246096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:57,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:57,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:11:57,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430387900] [2024-10-14 05:11:57,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:57,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:11:57,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:57,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:11:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:11:57,798 INFO L87 Difference]: Start difference. First operand 7195 states and 9108 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-14 05:11:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:11:58,479 INFO L93 Difference]: Finished difference Result 8915 states and 11347 transitions. [2024-10-14 05:11:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:11:58,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2024-10-14 05:11:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:11:58,498 INFO L225 Difference]: With dead ends: 8915 [2024-10-14 05:11:58,498 INFO L226 Difference]: Without dead ends: 3639 [2024-10-14 05:11:58,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:11:58,509 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 783 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:11:58,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 593 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:11:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2024-10-14 05:11:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 3187. [2024-10-14 05:11:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 2439 states have (on average 1.2779827798277983) internal successors, (3117), 2473 states have internal predecessors, (3117), 376 states have call successors, (376), 313 states have call predecessors, (376), 370 states have return successors, (494), 403 states have call predecessors, (494), 375 states have call successors, (494) [2024-10-14 05:11:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 3987 transitions. [2024-10-14 05:11:58,808 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 3987 transitions. Word has length 71 [2024-10-14 05:11:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:11:58,808 INFO L471 AbstractCegarLoop]: Abstraction has 3187 states and 3987 transitions. [2024-10-14 05:11:58,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-14 05:11:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 3987 transitions. [2024-10-14 05:11:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 05:11:58,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:11:58,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:11:58,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:11:58,811 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:11:58,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:11:58,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1103290916, now seen corresponding path program 1 times [2024-10-14 05:11:58,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:11:58,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292704886] [2024-10-14 05:11:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:11:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:11:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:11:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:11:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:11:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:11:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:11:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:11:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:11:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 05:11:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:11:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:11:58,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:11:58,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292704886] [2024-10-14 05:11:58,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292704886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:11:58,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:11:58,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:11:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358380092] [2024-10-14 05:11:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:11:58,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:11:58,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:11:58,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:11:58,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:11:58,934 INFO L87 Difference]: Start difference. First operand 3187 states and 3987 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 05:12:00,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:00,198 INFO L93 Difference]: Finished difference Result 9329 states and 11557 transitions. [2024-10-14 05:12:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 05:12:00,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-10-14 05:12:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:00,233 INFO L225 Difference]: With dead ends: 9329 [2024-10-14 05:12:00,234 INFO L226 Difference]: Without dead ends: 5795 [2024-10-14 05:12:00,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-14 05:12:00,245 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1031 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:00,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 852 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 05:12:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2024-10-14 05:12:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5466. [2024-10-14 05:12:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 4114 states have (on average 1.2401555663587749) internal successors, (5102), 4196 states have internal predecessors, (5102), 656 states have call successors, (656), 553 states have call predecessors, (656), 694 states have return successors, (980), 719 states have call predecessors, (980), 655 states have call successors, (980) [2024-10-14 05:12:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 6738 transitions. [2024-10-14 05:12:00,910 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 6738 transitions. Word has length 76 [2024-10-14 05:12:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:00,911 INFO L471 AbstractCegarLoop]: Abstraction has 5466 states and 6738 transitions. [2024-10-14 05:12:00,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 05:12:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 6738 transitions. [2024-10-14 05:12:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:00,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:00,914 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] [2024-10-14 05:12:00,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:12:00,914 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:00,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1254542137, now seen corresponding path program 1 times [2024-10-14 05:12:00,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:00,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33990095] [2024-10-14 05:12:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:00,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:00,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:00,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:01,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:01,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:01,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:01,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:01,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33990095] [2024-10-14 05:12:01,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33990095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:01,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:01,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:12:01,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111124296] [2024-10-14 05:12:01,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:01,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:12:01,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:01,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:12:01,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:12:01,051 INFO L87 Difference]: Start difference. First operand 5466 states and 6738 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-10-14 05:12:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:02,853 INFO L93 Difference]: Finished difference Result 5873 states and 7392 transitions. [2024-10-14 05:12:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:12:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:02,874 INFO L225 Difference]: With dead ends: 5873 [2024-10-14 05:12:02,874 INFO L226 Difference]: Without dead ends: 5721 [2024-10-14 05:12:02,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:12:02,877 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 806 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:02,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 681 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 05:12:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2024-10-14 05:12:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 5622. [2024-10-14 05:12:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5622 states, 4250 states have (on average 1.251294117647059) internal successors, (5318), 4333 states have internal predecessors, (5318), 669 states have call successors, (669), 559 states have call predecessors, (669), 701 states have return successors, (996), 732 states have call predecessors, (996), 668 states have call successors, (996) [2024-10-14 05:12:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5622 states to 5622 states and 6983 transitions. [2024-10-14 05:12:03,755 INFO L78 Accepts]: Start accepts. Automaton has 5622 states and 6983 transitions. Word has length 81 [2024-10-14 05:12:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:03,756 INFO L471 AbstractCegarLoop]: Abstraction has 5622 states and 6983 transitions. [2024-10-14 05:12:03,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-10-14 05:12:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5622 states and 6983 transitions. [2024-10-14 05:12:03,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:03,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:03,759 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] [2024-10-14 05:12:03,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:12:03,759 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:03,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash -300601979, now seen corresponding path program 1 times [2024-10-14 05:12:03,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:03,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558315354] [2024-10-14 05:12:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:03,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:03,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558315354] [2024-10-14 05:12:03,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558315354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:03,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:03,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:03,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380854812] [2024-10-14 05:12:03,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:03,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:03,903 INFO L87 Difference]: Start difference. First operand 5622 states and 6983 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:05,957 INFO L93 Difference]: Finished difference Result 6238 states and 7966 transitions. [2024-10-14 05:12:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 05:12:05,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:05,974 INFO L225 Difference]: With dead ends: 6238 [2024-10-14 05:12:05,975 INFO L226 Difference]: Without dead ends: 5930 [2024-10-14 05:12:05,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 05:12:05,977 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 809 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:05,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1151 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 05:12:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2024-10-14 05:12:06,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5767. [2024-10-14 05:12:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 4375 states have (on average 1.2598857142857143) internal successors, (5512), 4459 states have internal predecessors, (5512), 682 states have call successors, (682), 565 states have call predecessors, (682), 708 states have return successors, (1011), 746 states have call predecessors, (1011), 681 states have call successors, (1011) [2024-10-14 05:12:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 7205 transitions. [2024-10-14 05:12:06,991 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 7205 transitions. Word has length 81 [2024-10-14 05:12:06,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:06,992 INFO L471 AbstractCegarLoop]: Abstraction has 5767 states and 7205 transitions. [2024-10-14 05:12:06,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 7205 transitions. [2024-10-14 05:12:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:06,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:06,995 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] [2024-10-14 05:12:06,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:12:06,995 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:06,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:06,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1516755705, now seen corresponding path program 1 times [2024-10-14 05:12:06,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:06,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919886102] [2024-10-14 05:12:06,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:06,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:07,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919886102] [2024-10-14 05:12:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919886102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:07,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:07,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:07,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198820336] [2024-10-14 05:12:07,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:07,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:07,120 INFO L87 Difference]: Start difference. First operand 5767 states and 7205 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:09,433 INFO L93 Difference]: Finished difference Result 6772 states and 8804 transitions. [2024-10-14 05:12:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 05:12:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:09,458 INFO L225 Difference]: With dead ends: 6772 [2024-10-14 05:12:09,458 INFO L226 Difference]: Without dead ends: 6319 [2024-10-14 05:12:09,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 05:12:09,464 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 807 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:09,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1149 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 05:12:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2024-10-14 05:12:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6058. [2024-10-14 05:12:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 4626 states have (on average 1.275616083009079) internal successors, (5901), 4712 states have internal predecessors, (5901), 708 states have call successors, (708), 577 states have call predecessors, (708), 722 states have return successors, (1045), 774 states have call predecessors, (1045), 707 states have call successors, (1045) [2024-10-14 05:12:10,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 7654 transitions. [2024-10-14 05:12:10,428 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 7654 transitions. Word has length 81 [2024-10-14 05:12:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:10,429 INFO L471 AbstractCegarLoop]: Abstraction has 6058 states and 7654 transitions. [2024-10-14 05:12:10,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 7654 transitions. [2024-10-14 05:12:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:10,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:10,432 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] [2024-10-14 05:12:10,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:12:10,432 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:10,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2046244165, now seen corresponding path program 1 times [2024-10-14 05:12:10,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:10,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984308871] [2024-10-14 05:12:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:10,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:10,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:10,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984308871] [2024-10-14 05:12:10,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984308871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:10,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:10,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455871346] [2024-10-14 05:12:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:10,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:10,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:10,556 INFO L87 Difference]: Start difference. First operand 6058 states and 7654 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:11,949 INFO L93 Difference]: Finished difference Result 7053 states and 9246 transitions. [2024-10-14 05:12:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:12:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:11,968 INFO L225 Difference]: With dead ends: 7053 [2024-10-14 05:12:11,968 INFO L226 Difference]: Without dead ends: 6309 [2024-10-14 05:12:11,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:12:11,972 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 766 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:11,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 575 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 05:12:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2024-10-14 05:12:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6058. [2024-10-14 05:12:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 4626 states have (on average 1.2745352356247297) internal successors, (5896), 4712 states have internal predecessors, (5896), 708 states have call successors, (708), 577 states have call predecessors, (708), 722 states have return successors, (1045), 774 states have call predecessors, (1045), 707 states have call successors, (1045) [2024-10-14 05:12:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 7649 transitions. [2024-10-14 05:12:12,892 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 7649 transitions. Word has length 81 [2024-10-14 05:12:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:12,892 INFO L471 AbstractCegarLoop]: Abstraction has 6058 states and 7649 transitions. [2024-10-14 05:12:12,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 7649 transitions. [2024-10-14 05:12:12,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:12,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:12,896 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] [2024-10-14 05:12:12,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:12:12,896 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:12,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash 360064327, now seen corresponding path program 1 times [2024-10-14 05:12:12,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:12,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933213226] [2024-10-14 05:12:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:12,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:12,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:13,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:13,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:13,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:13,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933213226] [2024-10-14 05:12:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933213226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:13,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:13,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357018958] [2024-10-14 05:12:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:13,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:13,035 INFO L87 Difference]: Start difference. First operand 6058 states and 7649 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:14,644 INFO L93 Difference]: Finished difference Result 7047 states and 9220 transitions. [2024-10-14 05:12:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:12:14,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:14,667 INFO L225 Difference]: With dead ends: 7047 [2024-10-14 05:12:14,668 INFO L226 Difference]: Without dead ends: 6303 [2024-10-14 05:12:14,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:12:14,673 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 770 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:14,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 575 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 05:12:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-10-14 05:12:15,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6058. [2024-10-14 05:12:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 4626 states have (on average 1.2734543882403804) internal successors, (5891), 4712 states have internal predecessors, (5891), 708 states have call successors, (708), 577 states have call predecessors, (708), 722 states have return successors, (1045), 774 states have call predecessors, (1045), 707 states have call successors, (1045) [2024-10-14 05:12:15,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 7644 transitions. [2024-10-14 05:12:15,600 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 7644 transitions. Word has length 81 [2024-10-14 05:12:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:15,600 INFO L471 AbstractCegarLoop]: Abstraction has 6058 states and 7644 transitions. [2024-10-14 05:12:15,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 7644 transitions. [2024-10-14 05:12:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:15,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:15,603 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] [2024-10-14 05:12:15,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:12:15,603 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:15,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:15,603 INFO L85 PathProgramCache]: Analyzing trace with hash 305671429, now seen corresponding path program 1 times [2024-10-14 05:12:15,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:15,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172539228] [2024-10-14 05:12:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:15,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:15,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:15,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172539228] [2024-10-14 05:12:15,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172539228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:15,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:15,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:15,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556739274] [2024-10-14 05:12:15,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:15,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:15,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:15,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:15,726 INFO L87 Difference]: Start difference. First operand 6058 states and 7644 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:17,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:17,716 INFO L93 Difference]: Finished difference Result 7960 states and 10619 transitions. [2024-10-14 05:12:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:12:17,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:17,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:17,739 INFO L225 Difference]: With dead ends: 7960 [2024-10-14 05:12:17,740 INFO L226 Difference]: Without dead ends: 7216 [2024-10-14 05:12:17,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:12:17,744 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 911 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:17,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1138 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 05:12:17,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2024-10-14 05:12:18,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 6626. [2024-10-14 05:12:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6626 states, 5118 states have (on average 1.2983587338804221) internal successors, (6645), 5208 states have internal predecessors, (6645), 756 states have call successors, (756), 601 states have call predecessors, (756), 750 states have return successors, (1115), 826 states have call predecessors, (1115), 755 states have call successors, (1115) [2024-10-14 05:12:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6626 states to 6626 states and 8516 transitions. [2024-10-14 05:12:18,730 INFO L78 Accepts]: Start accepts. Automaton has 6626 states and 8516 transitions. Word has length 81 [2024-10-14 05:12:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:18,730 INFO L471 AbstractCegarLoop]: Abstraction has 6626 states and 8516 transitions. [2024-10-14 05:12:18,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6626 states and 8516 transitions. [2024-10-14 05:12:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:18,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:18,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:12:18,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 05:12:18,733 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:18,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:18,733 INFO L85 PathProgramCache]: Analyzing trace with hash 984943683, now seen corresponding path program 1 times [2024-10-14 05:12:18,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:18,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149036611] [2024-10-14 05:12:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:18,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:18,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149036611] [2024-10-14 05:12:18,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149036611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:18,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:18,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:18,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227309891] [2024-10-14 05:12:18,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:18,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:18,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:18,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:18,848 INFO L87 Difference]: Start difference. First operand 6626 states and 8516 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:20,201 INFO L93 Difference]: Finished difference Result 8313 states and 11168 transitions. [2024-10-14 05:12:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:12:20,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:20,222 INFO L225 Difference]: With dead ends: 8313 [2024-10-14 05:12:20,222 INFO L226 Difference]: Without dead ends: 7001 [2024-10-14 05:12:20,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:12:20,230 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 654 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:20,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 694 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 05:12:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7001 states. [2024-10-14 05:12:21,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7001 to 6626. [2024-10-14 05:12:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6626 states, 5118 states have (on average 1.2966002344665886) internal successors, (6636), 5208 states have internal predecessors, (6636), 756 states have call successors, (756), 601 states have call predecessors, (756), 750 states have return successors, (1115), 826 states have call predecessors, (1115), 755 states have call successors, (1115) [2024-10-14 05:12:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6626 states to 6626 states and 8507 transitions. [2024-10-14 05:12:21,247 INFO L78 Accepts]: Start accepts. Automaton has 6626 states and 8507 transitions. Word has length 81 [2024-10-14 05:12:21,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:21,248 INFO L471 AbstractCegarLoop]: Abstraction has 6626 states and 8507 transitions. [2024-10-14 05:12:21,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6626 states and 8507 transitions. [2024-10-14 05:12:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:21,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:21,251 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] [2024-10-14 05:12:21,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 05:12:21,251 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:21,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1348448955, now seen corresponding path program 1 times [2024-10-14 05:12:21,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277008709] [2024-10-14 05:12:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:21,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:21,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277008709] [2024-10-14 05:12:21,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277008709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:21,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:21,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:21,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610874115] [2024-10-14 05:12:21,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:21,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:21,377 INFO L87 Difference]: Start difference. First operand 6626 states and 8507 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:23,661 INFO L93 Difference]: Finished difference Result 9916 states and 13605 transitions. [2024-10-14 05:12:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:12:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:23,685 INFO L225 Difference]: With dead ends: 9916 [2024-10-14 05:12:23,686 INFO L226 Difference]: Without dead ends: 8604 [2024-10-14 05:12:23,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:12:23,693 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 875 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:23,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 847 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 05:12:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8604 states. [2024-10-14 05:12:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8604 to 7784. [2024-10-14 05:12:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7784 states, 6128 states have (on average 1.33355091383812) internal successors, (8172), 6226 states have internal predecessors, (8172), 848 states have call successors, (848), 649 states have call predecessors, (848), 806 states have return successors, (1269), 926 states have call predecessors, (1269), 847 states have call successors, (1269) [2024-10-14 05:12:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7784 states to 7784 states and 10289 transitions. [2024-10-14 05:12:24,692 INFO L78 Accepts]: Start accepts. Automaton has 7784 states and 10289 transitions. Word has length 81 [2024-10-14 05:12:24,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:24,692 INFO L471 AbstractCegarLoop]: Abstraction has 7784 states and 10289 transitions. [2024-10-14 05:12:24,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7784 states and 10289 transitions. [2024-10-14 05:12:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:24,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:24,696 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] [2024-10-14 05:12:24,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 05:12:24,696 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:24,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1146625021, now seen corresponding path program 1 times [2024-10-14 05:12:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:24,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543914478] [2024-10-14 05:12:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:24,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:24,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543914478] [2024-10-14 05:12:24,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543914478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:24,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:24,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685833320] [2024-10-14 05:12:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:24,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:24,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:24,817 INFO L87 Difference]: Start difference. First operand 7784 states and 10289 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:27,209 INFO L93 Difference]: Finished difference Result 13872 states and 19745 transitions. [2024-10-14 05:12:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:12:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:27,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:27,237 INFO L225 Difference]: With dead ends: 13872 [2024-10-14 05:12:27,237 INFO L226 Difference]: Without dead ends: 11402 [2024-10-14 05:12:27,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:12:27,245 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 795 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:27,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1142 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 05:12:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2024-10-14 05:12:28,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 10097. [2024-10-14 05:12:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10097 states, 8153 states have (on average 1.3803507911198332) internal successors, (11254), 8267 states have internal predecessors, (11254), 1024 states have call successors, (1024), 745 states have call predecessors, (1024), 918 states have return successors, (1623), 1118 states have call predecessors, (1623), 1023 states have call successors, (1623) [2024-10-14 05:12:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 13901 transitions. [2024-10-14 05:12:28,349 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 13901 transitions. Word has length 81 [2024-10-14 05:12:28,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:28,350 INFO L471 AbstractCegarLoop]: Abstraction has 10097 states and 13901 transitions. [2024-10-14 05:12:28,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:28,350 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 13901 transitions. [2024-10-14 05:12:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:28,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:28,356 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] [2024-10-14 05:12:28,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 05:12:28,356 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:28,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:28,357 INFO L85 PathProgramCache]: Analyzing trace with hash -585925243, now seen corresponding path program 1 times [2024-10-14 05:12:28,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:28,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056045626] [2024-10-14 05:12:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:28,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:28,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:28,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056045626] [2024-10-14 05:12:28,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056045626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:28,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:28,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:12:28,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544679360] [2024-10-14 05:12:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:28,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:12:28,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:12:28,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:12:28,490 INFO L87 Difference]: Start difference. First operand 10097 states and 13901 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-10-14 05:12:30,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:30,216 INFO L93 Difference]: Finished difference Result 16008 states and 23213 transitions. [2024-10-14 05:12:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:12:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:30,247 INFO L225 Difference]: With dead ends: 16008 [2024-10-14 05:12:30,247 INFO L226 Difference]: Without dead ends: 11226 [2024-10-14 05:12:30,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:12:30,261 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 297 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:30,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 795 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 05:12:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2024-10-14 05:12:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 10163. [2024-10-14 05:12:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10163 states, 8219 states have (on average 1.3772965080910087) internal successors, (11320), 8333 states have internal predecessors, (11320), 1024 states have call successors, (1024), 745 states have call predecessors, (1024), 918 states have return successors, (1623), 1118 states have call predecessors, (1623), 1023 states have call successors, (1623) [2024-10-14 05:12:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10163 states to 10163 states and 13967 transitions. [2024-10-14 05:12:31,409 INFO L78 Accepts]: Start accepts. Automaton has 10163 states and 13967 transitions. Word has length 81 [2024-10-14 05:12:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:31,410 INFO L471 AbstractCegarLoop]: Abstraction has 10163 states and 13967 transitions. [2024-10-14 05:12:31,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-10-14 05:12:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 10163 states and 13967 transitions. [2024-10-14 05:12:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 05:12:31,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:31,416 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] [2024-10-14 05:12:31,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 05:12:31,416 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1680455943, now seen corresponding path program 1 times [2024-10-14 05:12:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:31,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630076301] [2024-10-14 05:12:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:12:31,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:31,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630076301] [2024-10-14 05:12:31,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630076301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:31,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:31,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:12:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263567552] [2024-10-14 05:12:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:31,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:12:31,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:12:31,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:31,550 INFO L87 Difference]: Start difference. First operand 10163 states and 13967 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:35,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:35,106 INFO L93 Difference]: Finished difference Result 27198 states and 41033 transitions. [2024-10-14 05:12:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 05:12:35,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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 81 [2024-10-14 05:12:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:35,183 INFO L225 Difference]: With dead ends: 27198 [2024-10-14 05:12:35,184 INFO L226 Difference]: Without dead ends: 22350 [2024-10-14 05:12:35,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-10-14 05:12:35,202 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1883 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:35,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 965 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 05:12:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22350 states. [2024-10-14 05:12:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22350 to 19436. [2024-10-14 05:12:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19436 states, 16282 states have (on average 1.4373541333988453) internal successors, (23403), 16511 states have internal predecessors, (23403), 1768 states have call successors, (1768), 1147 states have call predecessors, (1768), 1384 states have return successors, (3070), 1811 states have call predecessors, (3070), 1767 states have call successors, (3070) [2024-10-14 05:12:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19436 states to 19436 states and 28241 transitions. [2024-10-14 05:12:37,123 INFO L78 Accepts]: Start accepts. Automaton has 19436 states and 28241 transitions. Word has length 81 [2024-10-14 05:12:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:37,123 INFO L471 AbstractCegarLoop]: Abstraction has 19436 states and 28241 transitions. [2024-10-14 05:12:37,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-10-14 05:12:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 19436 states and 28241 transitions. [2024-10-14 05:12:37,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:12:37,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:37,129 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:12:37,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 05:12:37,130 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:37,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash 420435187, now seen corresponding path program 1 times [2024-10-14 05:12:37,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:37,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356199724] [2024-10-14 05:12:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:37,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:12:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:12:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:12:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:12:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:12:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:12:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 05:12:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:12:37,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:37,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356199724] [2024-10-14 05:12:37,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356199724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:37,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:37,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:12:37,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551207032] [2024-10-14 05:12:37,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:37,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:12:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:12:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:12:37,239 INFO L87 Difference]: Start difference. First operand 19436 states and 28241 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 05:12:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:40,127 INFO L93 Difference]: Finished difference Result 23536 states and 33224 transitions. [2024-10-14 05:12:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 05:12:40,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-10-14 05:12:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:40,182 INFO L225 Difference]: With dead ends: 23536 [2024-10-14 05:12:40,183 INFO L226 Difference]: Without dead ends: 19089 [2024-10-14 05:12:40,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-10-14 05:12:40,205 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1506 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:40,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 900 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 05:12:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19089 states. [2024-10-14 05:12:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19089 to 18738. [2024-10-14 05:12:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18738 states, 15749 states have (on average 1.4407898914216775) internal successors, (22691), 15973 states have internal predecessors, (22691), 1679 states have call successors, (1679), 1070 states have call predecessors, (1679), 1308 states have return successors, (2889), 1728 states have call predecessors, (2889), 1678 states have call successors, (2889) [2024-10-14 05:12:42,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18738 states to 18738 states and 27259 transitions. [2024-10-14 05:12:42,030 INFO L78 Accepts]: Start accepts. Automaton has 18738 states and 27259 transitions. Word has length 86 [2024-10-14 05:12:42,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:42,030 INFO L471 AbstractCegarLoop]: Abstraction has 18738 states and 27259 transitions. [2024-10-14 05:12:42,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 05:12:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 18738 states and 27259 transitions. [2024-10-14 05:12:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 05:12:42,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:42,131 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:12:42,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 05:12:42,132 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:42,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash 786663259, now seen corresponding path program 1 times [2024-10-14 05:12:42,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:42,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61921807] [2024-10-14 05:12:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:42,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:12:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:12:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:12:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:12:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:12:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:12:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 05:12:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 05:12:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 05:12:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 05:12:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:12:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:12:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 05:12:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:12:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 05:12:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-14 05:12:42,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:42,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61921807] [2024-10-14 05:12:42,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61921807] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:12:42,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535875906] [2024-10-14 05:12:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:42,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:12:42,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:12:42,281 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) [2024-10-14 05:12:42,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 05:12:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:42,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 05:12:42,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:12:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 05:12:42,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:12:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535875906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:42,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:12:42,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-10-14 05:12:42,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700140167] [2024-10-14 05:12:42,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:12:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:42,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:12:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:12:42,449 INFO L87 Difference]: Start difference. First operand 18738 states and 27259 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 05:12:43,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:43,673 INFO L93 Difference]: Finished difference Result 20645 states and 29560 transitions. [2024-10-14 05:12:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 05:12:43,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-10-14 05:12:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:43,722 INFO L225 Difference]: With dead ends: 20645 [2024-10-14 05:12:43,722 INFO L226 Difference]: Without dead ends: 16053 [2024-10-14 05:12:43,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:12:43,737 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 0 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:43,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1688 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:12:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16053 states. [2024-10-14 05:12:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16053 to 16009. [2024-10-14 05:12:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16009 states, 13764 states have (on average 1.4728276663760536) internal successors, (20272), 13931 states have internal predecessors, (20272), 1330 states have call successors, (1330), 765 states have call predecessors, (1330), 913 states have return successors, (2390), 1344 states have call predecessors, (2390), 1329 states have call successors, (2390) [2024-10-14 05:12:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16009 states to 16009 states and 23992 transitions. [2024-10-14 05:12:45,106 INFO L78 Accepts]: Start accepts. Automaton has 16009 states and 23992 transitions. Word has length 131 [2024-10-14 05:12:45,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:45,106 INFO L471 AbstractCegarLoop]: Abstraction has 16009 states and 23992 transitions. [2024-10-14 05:12:45,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 05:12:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 16009 states and 23992 transitions. [2024-10-14 05:12:45,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 05:12:45,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:45,129 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:12:45,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 05:12:45,330 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,SelfDestructingSolverStorable25 [2024-10-14 05:12:45,330 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:45,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash 705688633, now seen corresponding path program 1 times [2024-10-14 05:12:45,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:45,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542482983] [2024-10-14 05:12:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 05:12:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 05:12:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:12:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:12:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 05:12:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 05:12:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 05:12:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 05:12:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 05:12:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 05:12:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 05:12:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 05:12:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 05:12:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:12:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 05:12:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-14 05:12:45,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542482983] [2024-10-14 05:12:45,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542482983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:45,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:12:45,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:12:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690811294] [2024-10-14 05:12:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:45,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:12:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:12:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:12:45,420 INFO L87 Difference]: Start difference. First operand 16009 states and 23992 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 05:12:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:47,247 INFO L93 Difference]: Finished difference Result 16061 states and 24046 transitions. [2024-10-14 05:12:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:12:47,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2024-10-14 05:12:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:47,295 INFO L225 Difference]: With dead ends: 16061 [2024-10-14 05:12:47,295 INFO L226 Difference]: Without dead ends: 15446 [2024-10-14 05:12:47,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:12:47,304 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 402 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:47,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 734 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:12:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15446 states. [2024-10-14 05:12:48,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15446 to 15397. [2024-10-14 05:12:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15397 states, 13301 states have (on average 1.4820690173671152) internal successors, (19713), 13463 states have internal predecessors, (19713), 1258 states have call successors, (1258), 705 states have call predecessors, (1258), 836 states have return successors, (2287), 1260 states have call predecessors, (2287), 1257 states have call successors, (2287) [2024-10-14 05:12:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 23258 transitions. [2024-10-14 05:12:48,580 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 23258 transitions. Word has length 133 [2024-10-14 05:12:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:12:48,580 INFO L471 AbstractCegarLoop]: Abstraction has 15397 states and 23258 transitions. [2024-10-14 05:12:48,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 05:12:48,580 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 23258 transitions. [2024-10-14 05:12:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 05:12:48,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:12:48,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:12:48,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 05:12:48,599 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:12:48,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:12:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash -458440807, now seen corresponding path program 1 times [2024-10-14 05:12:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:12:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574155885] [2024-10-14 05:12:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:12:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 05:12:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 05:12:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 05:12:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 05:12:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 05:12:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 05:12:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-14 05:12:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 05:12:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 05:12:48,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:12:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574155885] [2024-10-14 05:12:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574155885] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:12:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569077029] [2024-10-14 05:12:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:12:48,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:12:48,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:12:48,716 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) [2024-10-14 05:12:48,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 05:12:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:12:48,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 05:12:48,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:12:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-14 05:12:48,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:12:48,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569077029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:12:48,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:12:48,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 05:12:48,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837319200] [2024-10-14 05:12:48,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:12:48,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:12:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:12:48,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:12:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:48,903 INFO L87 Difference]: Start difference. First operand 15397 states and 23258 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 05:12:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:12:50,975 INFO L93 Difference]: Finished difference Result 43334 states and 66957 transitions. [2024-10-14 05:12:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:12:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 131 [2024-10-14 05:12:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:12:51,059 INFO L225 Difference]: With dead ends: 43334 [2024-10-14 05:12:51,059 INFO L226 Difference]: Without dead ends: 29213 [2024-10-14 05:12:51,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:12:51,093 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 317 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:12:51,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 541 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:12:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29213 states.