./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i -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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:02:46,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:02:46,452 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 23:02:46,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:02:46,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:02:46,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:02:46,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:02:46,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:02:46,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 23:02:46,484 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 23:02:46,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:02:46,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:02:46,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:02:46,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:02:46,487 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:02:46,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:02:46,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:02:46,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:02:46,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:02:46,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:02:46,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:02:46,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:02:46,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:02:46,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:02:46,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:02:46,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:02:46,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:02:46,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:02:46,492 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:02:46,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:02:46,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:02:46,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:02:46,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:02:46,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:02:46,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:02:46,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:02:46,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:02:46,495 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-16 23:02:46,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:02:46,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:02:46,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:02:46,708 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:02:46,709 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:02:46,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i [2024-11-16 23:02:48,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:02:48,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:02:48,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i [2024-11-16 23:02:48,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbc2f2c6/d19938510c1545b3842ebac6a617cf59/FLAG192a55606 [2024-11-16 23:02:48,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbc2f2c6/d19938510c1545b3842ebac6a617cf59 [2024-11-16 23:02:48,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:02:48,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:02:48,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:02:48,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:02:48,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:02:48,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:48" (1/1) ... [2024-11-16 23:02:48,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8fff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:48, skipping insertion in model container [2024-11-16 23:02:48,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:48" (1/1) ... [2024-11-16 23:02:48,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:02:48,727 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i[37435,37448] [2024-11-16 23:02:48,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:02:48,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:02:48,903 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i[37435,37448] [2024-11-16 23:02:48,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:02:49,006 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:02:49,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49 WrapperNode [2024-11-16 23:02:49,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:02:49,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:02:49,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:02:49,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:02:49,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,098 INFO L138 Inliner]: procedures = 207, calls = 272, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1408 [2024-11-16 23:02:49,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:02:49,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:02:49,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:02:49,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:02:49,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,194 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [34, 2, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 54 writes are split as follows [4, 0, 50]. [2024-11-16 23:02:49,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,227 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:02:49,255 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:02:49,255 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:02:49,255 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:02:49,256 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (1/1) ... [2024-11-16 23:02:49,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:02:49,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:02:49,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:02:49,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:02:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 23:02:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 23:02:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-16 23:02:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 23:02:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 23:02:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-16 23:02:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:02:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 23:02:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 23:02:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 23:02:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:02:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 23:02:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 23:02:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 23:02:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 23:02:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 23:02:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:02:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:02:49,508 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:02:49,510 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:02:50,419 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L812: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-16 23:02:50,484 INFO L? ?]: Removed 320 outVars from TransFormulas that were not future-live. [2024-11-16 23:02:50,484 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:02:50,577 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:02:50,577 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 23:02:50,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:02:50 BoogieIcfgContainer [2024-11-16 23:02:50,580 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:02:50,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:02:50,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:02:50,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:02:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:02:48" (1/3) ... [2024-11-16 23:02:50,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f70776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:50, skipping insertion in model container [2024-11-16 23:02:50,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:49" (2/3) ... [2024-11-16 23:02:50,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f70776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:50, skipping insertion in model container [2024-11-16 23:02:50,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:02:50" (3/3) ... [2024-11-16 23:02:50,587 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test2-2.i [2024-11-16 23:02:50,598 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:02:50,598 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 23:02:50,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:02:50,655 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;@7733bced, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:02:50,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 23:02:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 398 states have (on average 1.6155778894472361) internal successors, (643), 399 states have internal predecessors, (643), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 23:02:50,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:50,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:50,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:50,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:50,667 INFO L85 PathProgramCache]: Analyzing trace with hash -856619657, now seen corresponding path program 1 times [2024-11-16 23:02:50,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:50,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289527601] [2024-11-16 23:02:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:50,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:50,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289527601] [2024-11-16 23:02:50,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289527601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:50,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:50,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:02:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419573223] [2024-11-16 23:02:50,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:50,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:02:50,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:50,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:02:50,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:02:50,838 INFO L87 Difference]: Start difference. First operand has 404 states, 398 states have (on average 1.6155778894472361) internal successors, (643), 399 states have internal predecessors, (643), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:50,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:50,951 INFO L93 Difference]: Finished difference Result 805 states and 1294 transitions. [2024-11-16 23:02:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:02:50,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 23:02:50,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:50,966 INFO L225 Difference]: With dead ends: 805 [2024-11-16 23:02:50,966 INFO L226 Difference]: Without dead ends: 365 [2024-11-16 23:02:50,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:02:50,973 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:50,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:02:50,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-16 23:02:51,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-16 23:02:51,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.45) internal successors, (522), 360 states have internal predecessors, (522), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 528 transitions. [2024-11-16 23:02:51,021 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 528 transitions. Word has length 11 [2024-11-16 23:02:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:51,022 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 528 transitions. [2024-11-16 23:02:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 528 transitions. [2024-11-16 23:02:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 23:02:51,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:51,026 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] [2024-11-16 23:02:51,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:02:51,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:51,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:51,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1903405487, now seen corresponding path program 1 times [2024-11-16 23:02:51,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:51,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163491607] [2024-11-16 23:02:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:51,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:51,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:51,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:51,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163491607] [2024-11-16 23:02:51,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163491607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:51,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:51,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:02:51,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995028989] [2024-11-16 23:02:51,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:51,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:02:51,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:51,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:02:51,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:02:51,279 INFO L87 Difference]: Start difference. First operand 365 states and 528 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:51,482 INFO L93 Difference]: Finished difference Result 483 states and 697 transitions. [2024-11-16 23:02:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:02:51,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 23:02:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:51,485 INFO L225 Difference]: With dead ends: 483 [2024-11-16 23:02:51,485 INFO L226 Difference]: Without dead ends: 323 [2024-11-16 23:02:51,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:02:51,486 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 30 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:51,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1162 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:02:51,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-16 23:02:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-16 23:02:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.39937106918239) internal successors, (445), 318 states have internal predecessors, (445), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 451 transitions. [2024-11-16 23:02:51,501 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 451 transitions. Word has length 67 [2024-11-16 23:02:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:51,502 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 451 transitions. [2024-11-16 23:02:51,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 451 transitions. [2024-11-16 23:02:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 23:02:51,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:51,505 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] [2024-11-16 23:02:51,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:02:51,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:51,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash -522698216, now seen corresponding path program 1 times [2024-11-16 23:02:51,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:51,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545395915] [2024-11-16 23:02:51,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:51,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:51,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:51,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545395915] [2024-11-16 23:02:51,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545395915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:51,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:51,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:02:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138126487] [2024-11-16 23:02:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:51,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:02:51,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:02:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:02:51,611 INFO L87 Difference]: Start difference. First operand 323 states and 451 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:51,689 INFO L93 Difference]: Finished difference Result 441 states and 609 transitions. [2024-11-16 23:02:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:02:51,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 23:02:51,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:51,691 INFO L225 Difference]: With dead ends: 441 [2024-11-16 23:02:51,692 INFO L226 Difference]: Without dead ends: 323 [2024-11-16 23:02:51,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:02:51,693 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:51,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 792 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:02:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-16 23:02:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-16 23:02:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.389937106918239) internal successors, (442), 318 states have internal predecessors, (442), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:51,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 448 transitions. [2024-11-16 23:02:51,704 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 448 transitions. Word has length 67 [2024-11-16 23:02:51,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:51,704 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 448 transitions. [2024-11-16 23:02:51,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 448 transitions. [2024-11-16 23:02:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 23:02:51,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:51,706 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] [2024-11-16 23:02:51,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:02:51,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:51,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1660978711, now seen corresponding path program 1 times [2024-11-16 23:02:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667869441] [2024-11-16 23:02:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:52,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667869441] [2024-11-16 23:02:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667869441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:52,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:02:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592738323] [2024-11-16 23:02:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:52,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:02:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:02:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:02:52,080 INFO L87 Difference]: Start difference. First operand 323 states and 448 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:52,275 INFO L93 Difference]: Finished difference Result 759 states and 1046 transitions. [2024-11-16 23:02:52,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:02:52,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 23:02:52,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:52,280 INFO L225 Difference]: With dead ends: 759 [2024-11-16 23:02:52,280 INFO L226 Difference]: Without dead ends: 638 [2024-11-16 23:02:52,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:02:52,281 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 431 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:52,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1717 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:02:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-16 23:02:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 325. [2024-11-16 23:02:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.3875) internal successors, (444), 320 states have internal predecessors, (444), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 450 transitions. [2024-11-16 23:02:52,293 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 450 transitions. Word has length 67 [2024-11-16 23:02:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:52,293 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 450 transitions. [2024-11-16 23:02:52,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 450 transitions. [2024-11-16 23:02:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 23:02:52,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:52,297 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:52,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:02:52,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:52,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1752527859, now seen corresponding path program 1 times [2024-11-16 23:02:52,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:52,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923584225] [2024-11-16 23:02:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:52,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:52,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:52,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923584225] [2024-11-16 23:02:52,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923584225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:52,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:52,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:02:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315783860] [2024-11-16 23:02:52,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:52,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:02:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:52,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:02:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:02:52,492 INFO L87 Difference]: Start difference. First operand 325 states and 450 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:52,704 INFO L93 Difference]: Finished difference Result 648 states and 898 transitions. [2024-11-16 23:02:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:02:52,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-16 23:02:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:52,706 INFO L225 Difference]: With dead ends: 648 [2024-11-16 23:02:52,706 INFO L226 Difference]: Without dead ends: 328 [2024-11-16 23:02:52,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:02:52,711 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 105 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:52,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1070 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:02:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-16 23:02:52,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 325. [2024-11-16 23:02:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.365625) internal successors, (437), 320 states have internal predecessors, (437), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:52,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 443 transitions. [2024-11-16 23:02:52,721 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 443 transitions. Word has length 144 [2024-11-16 23:02:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:52,725 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 443 transitions. [2024-11-16 23:02:52,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:52,725 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2024-11-16 23:02:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 23:02:52,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:52,728 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:52,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:02:52,728 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:52,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash -888203372, now seen corresponding path program 1 times [2024-11-16 23:02:52,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:52,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127244228] [2024-11-16 23:02:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:52,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:02:52,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:52,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127244228] [2024-11-16 23:02:52,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127244228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:52,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:52,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:02:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277857401] [2024-11-16 23:02:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:02:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:02:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:02:52,976 INFO L87 Difference]: Start difference. First operand 325 states and 443 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:53,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:53,088 INFO L93 Difference]: Finished difference Result 871 states and 1196 transitions. [2024-11-16 23:02:53,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:02:53,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-16 23:02:53,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:53,091 INFO L225 Difference]: With dead ends: 871 [2024-11-16 23:02:53,091 INFO L226 Difference]: Without dead ends: 551 [2024-11-16 23:02:53,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:02:53,092 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 254 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:53,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 899 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:02:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-16 23:02:53,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2024-11-16 23:02:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.3768382352941178) internal successors, (749), 544 states have internal predecessors, (749), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 755 transitions. [2024-11-16 23:02:53,101 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 755 transitions. Word has length 144 [2024-11-16 23:02:53,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:53,102 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 755 transitions. [2024-11-16 23:02:53,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:02:53,102 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 755 transitions. [2024-11-16 23:02:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 23:02:53,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:53,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:53,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:02:53,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:53,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:53,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1712397690, now seen corresponding path program 1 times [2024-11-16 23:02:53,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:53,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795583034] [2024-11-16 23:02:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:53,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:53,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 23:02:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:53,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 23:02:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:02:53,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:53,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795583034] [2024-11-16 23:02:53,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795583034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:53,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:53,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:02:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566285670] [2024-11-16 23:02:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:53,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:02:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:53,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:02:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:02:53,283 INFO L87 Difference]: Start difference. First operand 549 states and 755 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:53,694 INFO L93 Difference]: Finished difference Result 872 states and 1199 transitions. [2024-11-16 23:02:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:02:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 159 [2024-11-16 23:02:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:53,697 INFO L225 Difference]: With dead ends: 872 [2024-11-16 23:02:53,697 INFO L226 Difference]: Without dead ends: 458 [2024-11-16 23:02:53,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:02:53,698 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 706 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:53,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1233 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:02:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-16 23:02:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 455. [2024-11-16 23:02:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 450 states have (on average 1.3866666666666667) internal successors, (624), 450 states have internal predecessors, (624), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:53,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 630 transitions. [2024-11-16 23:02:53,707 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 630 transitions. Word has length 159 [2024-11-16 23:02:53,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:53,707 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 630 transitions. [2024-11-16 23:02:53,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:53,708 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 630 transitions. [2024-11-16 23:02:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 23:02:53,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:53,709 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:53,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:02:53,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:53,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:53,710 INFO L85 PathProgramCache]: Analyzing trace with hash -784947445, now seen corresponding path program 1 times [2024-11-16 23:02:53,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:53,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882891016] [2024-11-16 23:02:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:53,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:54,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 23:02:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:54,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 23:02:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:02:54,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882891016] [2024-11-16 23:02:54,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882891016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:02:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830917732] [2024-11-16 23:02:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:02:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:02:54,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:02:54,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:02:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:54,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 23:02:54,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:02:54,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 23:02:54,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-16 23:02:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:02:55,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:02:55,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830917732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:55,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:02:55,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-16 23:02:55,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553558066] [2024-11-16 23:02:55,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:55,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 23:02:55,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:55,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 23:02:55,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-16 23:02:55,247 INFO L87 Difference]: Start difference. First operand 455 states and 630 transitions. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:56,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:56,606 INFO L93 Difference]: Finished difference Result 1044 states and 1427 transitions. [2024-11-16 23:02:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 23:02:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2024-11-16 23:02:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:56,609 INFO L225 Difference]: With dead ends: 1044 [2024-11-16 23:02:56,609 INFO L226 Difference]: Without dead ends: 677 [2024-11-16 23:02:56,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-16 23:02:56,610 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 700 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:56,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2112 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 23:02:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-16 23:02:56,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 482. [2024-11-16 23:02:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 477 states have (on average 1.3752620545073375) internal successors, (656), 477 states have internal predecessors, (656), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:56,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 662 transitions. [2024-11-16 23:02:56,622 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 662 transitions. Word has length 170 [2024-11-16 23:02:56,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:56,623 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 662 transitions. [2024-11-16 23:02:56,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 662 transitions. [2024-11-16 23:02:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 23:02:56,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:56,624 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:56,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:02:56,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:02:56,826 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:56,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash -662476129, now seen corresponding path program 1 times [2024-11-16 23:02:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259160769] [2024-11-16 23:02:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:57,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 23:02:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:57,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 23:02:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:02:57,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:57,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259160769] [2024-11-16 23:02:57,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259160769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:02:57,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343563511] [2024-11-16 23:02:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:57,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:02:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:02:57,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:02:57,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:02:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:57,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 23:02:57,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:02:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:02:57,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:02:57,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343563511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:57,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:02:57,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-16 23:02:57,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869972843] [2024-11-16 23:02:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:57,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:02:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:02:57,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:02:57,509 INFO L87 Difference]: Start difference. First operand 482 states and 662 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:57,704 INFO L93 Difference]: Finished difference Result 894 states and 1230 transitions. [2024-11-16 23:02:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:02:57,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 171 [2024-11-16 23:02:57,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:57,706 INFO L225 Difference]: With dead ends: 894 [2024-11-16 23:02:57,706 INFO L226 Difference]: Without dead ends: 527 [2024-11-16 23:02:57,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:02:57,707 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 17 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:57,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1025 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:02:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-16 23:02:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 511. [2024-11-16 23:02:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 506 states have (on average 1.365612648221344) internal successors, (691), 506 states have internal predecessors, (691), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 697 transitions. [2024-11-16 23:02:57,720 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 697 transitions. Word has length 171 [2024-11-16 23:02:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 697 transitions. [2024-11-16 23:02:57,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 697 transitions. [2024-11-16 23:02:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 23:02:57,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:57,723 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:57,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:02:57,923 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,SelfDestructingSolverStorable8 [2024-11-16 23:02:57,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:57,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1221022808, now seen corresponding path program 1 times [2024-11-16 23:02:57,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:57,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108972712] [2024-11-16 23:02:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:57,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:58,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 23:02:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:58,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 23:02:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:02:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108972712] [2024-11-16 23:02:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108972712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:58,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:58,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:02:58,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362248047] [2024-11-16 23:02:58,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:58,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:02:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:02:58,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:02:58,223 INFO L87 Difference]: Start difference. First operand 511 states and 697 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:02:58,661 INFO L93 Difference]: Finished difference Result 918 states and 1257 transitions. [2024-11-16 23:02:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:02:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 172 [2024-11-16 23:02:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:02:58,664 INFO L225 Difference]: With dead ends: 918 [2024-11-16 23:02:58,664 INFO L226 Difference]: Without dead ends: 526 [2024-11-16 23:02:58,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:02:58,665 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 11 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:02:58,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1596 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:02:58,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-16 23:02:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 519. [2024-11-16 23:02:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 514 states have (on average 1.3638132295719845) internal successors, (701), 514 states have internal predecessors, (701), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:02:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 707 transitions. [2024-11-16 23:02:58,675 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 707 transitions. Word has length 172 [2024-11-16 23:02:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:02:58,676 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 707 transitions. [2024-11-16 23:02:58,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:02:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 707 transitions. [2024-11-16 23:02:58,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 23:02:58,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:02:58,677 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:02:58,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:02:58,678 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:02:58,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:02:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1830319739, now seen corresponding path program 1 times [2024-11-16 23:02:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:02:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903111765] [2024-11-16 23:02:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:02:58,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:02:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:59,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:02:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:59,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:02:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:02:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:02:59,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:02:59,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903111765] [2024-11-16 23:02:59,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903111765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:02:59,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:02:59,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 23:02:59,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386216613] [2024-11-16 23:02:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:02:59,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:02:59,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:02:59,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:02:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:02:59,031 INFO L87 Difference]: Start difference. First operand 519 states and 707 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:00,317 INFO L93 Difference]: Finished difference Result 933 states and 1277 transitions. [2024-11-16 23:03:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:03:00,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2024-11-16 23:03:00,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:00,320 INFO L225 Difference]: With dead ends: 933 [2024-11-16 23:03:00,320 INFO L226 Difference]: Without dead ends: 544 [2024-11-16 23:03:00,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:03:00,322 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 15 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:00,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2109 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 23:03:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-16 23:03:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-11-16 23:03:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.3641509433962264) internal successors, (723), 530 states have internal predecessors, (723), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 729 transitions. [2024-11-16 23:03:00,333 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 729 transitions. Word has length 173 [2024-11-16 23:03:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:00,333 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 729 transitions. [2024-11-16 23:03:00,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 729 transitions. [2024-11-16 23:03:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 23:03:00,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:00,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:00,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:03:00,335 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:00,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:00,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1290342027, now seen corresponding path program 1 times [2024-11-16 23:03:00,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:00,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544618237] [2024-11-16 23:03:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:00,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:00,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:00,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:00,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544618237] [2024-11-16 23:03:00,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544618237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:00,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033663710] [2024-11-16 23:03:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:00,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:00,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:00,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:00,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:03:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:00,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-16 23:03:00,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:00,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 23:03:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:01,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:01,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033663710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:01,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:01,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2024-11-16 23:03:01,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955295256] [2024-11-16 23:03:01,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:01,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:03:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:03:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:03:01,434 INFO L87 Difference]: Start difference. First operand 535 states and 729 transitions. Second operand has 10 states, 10 states have (on average 16.5) internal successors, (165), 10 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:02,140 INFO L93 Difference]: Finished difference Result 827 states and 1111 transitions. [2024-11-16 23:03:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:03:02,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 10 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2024-11-16 23:03:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:02,143 INFO L225 Difference]: With dead ends: 827 [2024-11-16 23:03:02,143 INFO L226 Difference]: Without dead ends: 709 [2024-11-16 23:03:02,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-16 23:03:02,143 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 435 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:02,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 2084 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:03:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-16 23:03:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 573. [2024-11-16 23:03:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 568 states have (on average 1.341549295774648) internal successors, (762), 568 states have internal predecessors, (762), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 768 transitions. [2024-11-16 23:03:02,155 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 768 transitions. Word has length 173 [2024-11-16 23:03:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:02,156 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 768 transitions. [2024-11-16 23:03:02,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 10 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 768 transitions. [2024-11-16 23:03:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 23:03:02,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:02,157 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:02,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:03:02,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:02,362 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:02,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:02,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1767808403, now seen corresponding path program 1 times [2024-11-16 23:03:02,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:02,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114635531] [2024-11-16 23:03:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:02,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:02,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:02,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114635531] [2024-11-16 23:03:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114635531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896245221] [2024-11-16 23:03:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:02,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:02,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:02,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:03:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:02,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 23:03:02,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:03,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:03,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896245221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:03,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:03,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-16 23:03:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55634155] [2024-11-16 23:03:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:03,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:03:03,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:03,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:03:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:03:03,059 INFO L87 Difference]: Start difference. First operand 573 states and 768 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:03,353 INFO L93 Difference]: Finished difference Result 697 states and 930 transitions. [2024-11-16 23:03:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:03:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 174 [2024-11-16 23:03:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:03,356 INFO L225 Difference]: With dead ends: 697 [2024-11-16 23:03:03,356 INFO L226 Difference]: Without dead ends: 579 [2024-11-16 23:03:03,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:03:03,356 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 34 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:03,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1657 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:03:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-16 23:03:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 573. [2024-11-16 23:03:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 568 states have (on average 1.3397887323943662) internal successors, (761), 568 states have internal predecessors, (761), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 767 transitions. [2024-11-16 23:03:03,372 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 767 transitions. Word has length 174 [2024-11-16 23:03:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:03,372 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 767 transitions. [2024-11-16 23:03:03,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 767 transitions. [2024-11-16 23:03:03,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 23:03:03,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:03,374 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:03,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 23:03:03,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:03,575 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:03,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash -102615560, now seen corresponding path program 1 times [2024-11-16 23:03:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:03,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419305136] [2024-11-16 23:03:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:03,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:03,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419305136] [2024-11-16 23:03:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419305136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:03:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372696018] [2024-11-16 23:03:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:03,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:03:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:03:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:03:03,827 INFO L87 Difference]: Start difference. First operand 573 states and 767 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:04,197 INFO L93 Difference]: Finished difference Result 697 states and 931 transitions. [2024-11-16 23:03:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:03:04,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 175 [2024-11-16 23:03:04,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:04,199 INFO L225 Difference]: With dead ends: 697 [2024-11-16 23:03:04,200 INFO L226 Difference]: Without dead ends: 579 [2024-11-16 23:03:04,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:03:04,200 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 11 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:04,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2048 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:03:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-16 23:03:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 576. [2024-11-16 23:03:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.3380035026269703) internal successors, (764), 571 states have internal predecessors, (764), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 770 transitions. [2024-11-16 23:03:04,235 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 770 transitions. Word has length 175 [2024-11-16 23:03:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:04,235 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 770 transitions. [2024-11-16 23:03:04,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 770 transitions. [2024-11-16 23:03:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 23:03:04,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:04,237 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:04,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:03:04,238 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:04,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:04,238 INFO L85 PathProgramCache]: Analyzing trace with hash 551167479, now seen corresponding path program 1 times [2024-11-16 23:03:04,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:04,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125931326] [2024-11-16 23:03:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:04,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:04,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:04,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:04,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125931326] [2024-11-16 23:03:04,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125931326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:04,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:04,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 23:03:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409229962] [2024-11-16 23:03:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:04,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:03:04,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:03:04,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:03:04,541 INFO L87 Difference]: Start difference. First operand 576 states and 770 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:04,941 INFO L93 Difference]: Finished difference Result 705 states and 940 transitions. [2024-11-16 23:03:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:03:04,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-16 23:03:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:04,943 INFO L225 Difference]: With dead ends: 705 [2024-11-16 23:03:04,943 INFO L226 Difference]: Without dead ends: 584 [2024-11-16 23:03:04,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:03:04,944 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 15 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:04,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2360 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:03:04,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-16 23:03:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 580. [2024-11-16 23:03:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.337391304347826) internal successors, (769), 575 states have internal predecessors, (769), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 775 transitions. [2024-11-16 23:03:04,965 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 775 transitions. Word has length 176 [2024-11-16 23:03:04,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:04,965 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 775 transitions. [2024-11-16 23:03:04,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 775 transitions. [2024-11-16 23:03:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 23:03:04,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:04,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:04,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:03:04,967 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:04,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:04,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1419951627, now seen corresponding path program 1 times [2024-11-16 23:03:04,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:04,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77754390] [2024-11-16 23:03:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:05,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:05,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:05,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77754390] [2024-11-16 23:03:05,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77754390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:05,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039570541] [2024-11-16 23:03:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:05,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:05,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:05,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:05,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:03:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:05,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:03:05,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:05,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:05,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039570541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:05,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:05,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-16 23:03:05,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134885015] [2024-11-16 23:03:05,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:05,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:03:05,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:03:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:05,914 INFO L87 Difference]: Start difference. First operand 580 states and 775 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:06,240 INFO L93 Difference]: Finished difference Result 710 states and 944 transitions. [2024-11-16 23:03:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:03:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-16 23:03:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:06,243 INFO L225 Difference]: With dead ends: 710 [2024-11-16 23:03:06,243 INFO L226 Difference]: Without dead ends: 585 [2024-11-16 23:03:06,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:06,244 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 12 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:06,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2040 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:03:06,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-16 23:03:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 580. [2024-11-16 23:03:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.337391304347826) internal successors, (769), 575 states have internal predecessors, (769), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 775 transitions. [2024-11-16 23:03:06,258 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 775 transitions. Word has length 176 [2024-11-16 23:03:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:06,259 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 775 transitions. [2024-11-16 23:03:06,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 775 transitions. [2024-11-16 23:03:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 23:03:06,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:06,261 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:06,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:03:06,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 23:03:06,462 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:06,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:06,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1755191265, now seen corresponding path program 1 times [2024-11-16 23:03:06,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:06,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951563748] [2024-11-16 23:03:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:06,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:06,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:06,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:06,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951563748] [2024-11-16 23:03:06,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951563748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:06,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:06,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 23:03:06,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451950210] [2024-11-16 23:03:06,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:06,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:03:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:06,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:03:06,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:06,782 INFO L87 Difference]: Start difference. First operand 580 states and 775 transitions. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:07,228 INFO L93 Difference]: Finished difference Result 718 states and 956 transitions. [2024-11-16 23:03:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:03:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 177 [2024-11-16 23:03:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:07,236 INFO L225 Difference]: With dead ends: 718 [2024-11-16 23:03:07,236 INFO L226 Difference]: Without dead ends: 593 [2024-11-16 23:03:07,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:07,237 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 23 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:07,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3081 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:03:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-16 23:03:07,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 587. [2024-11-16 23:03:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.3367697594501717) internal successors, (778), 582 states have internal predecessors, (778), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 784 transitions. [2024-11-16 23:03:07,255 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 784 transitions. Word has length 177 [2024-11-16 23:03:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:07,256 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 784 transitions. [2024-11-16 23:03:07,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 784 transitions. [2024-11-16 23:03:07,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 23:03:07,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:07,257 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:07,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:03:07,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:07,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1564625889, now seen corresponding path program 1 times [2024-11-16 23:03:07,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:07,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616737115] [2024-11-16 23:03:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:07,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:07,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:07,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:07,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:07,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616737115] [2024-11-16 23:03:07,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616737115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:07,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558913367] [2024-11-16 23:03:07,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:07,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:07,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:07,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:07,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:03:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:07,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-16 23:03:07,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:08,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:08,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558913367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:08,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:08,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-11-16 23:03:08,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310685211] [2024-11-16 23:03:08,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:08,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:03:08,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:08,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:03:08,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:08,004 INFO L87 Difference]: Start difference. First operand 587 states and 784 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:08,382 INFO L93 Difference]: Finished difference Result 733 states and 972 transitions. [2024-11-16 23:03:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:03:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 177 [2024-11-16 23:03:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:08,385 INFO L225 Difference]: With dead ends: 733 [2024-11-16 23:03:08,385 INFO L226 Difference]: Without dead ends: 601 [2024-11-16 23:03:08,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:03:08,386 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 42 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:08,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2400 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:03:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-16 23:03:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 592. [2024-11-16 23:03:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 587 states have (on average 1.3356047700170357) internal successors, (784), 587 states have internal predecessors, (784), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 790 transitions. [2024-11-16 23:03:08,400 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 790 transitions. Word has length 177 [2024-11-16 23:03:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:08,400 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 790 transitions. [2024-11-16 23:03:08,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 790 transitions. [2024-11-16 23:03:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 23:03:08,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:08,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:08,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 23:03:08,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 23:03:08,603 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:08,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash 333054718, now seen corresponding path program 1 times [2024-11-16 23:03:08,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:08,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312552352] [2024-11-16 23:03:08,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:08,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:09,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:09,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:03:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312552352] [2024-11-16 23:03:09,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312552352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:09,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:09,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 23:03:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414189203] [2024-11-16 23:03:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:09,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 23:03:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 23:03:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:09,019 INFO L87 Difference]: Start difference. First operand 592 states and 790 transitions. Second operand has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 10 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:09,693 INFO L93 Difference]: Finished difference Result 741 states and 986 transitions. [2024-11-16 23:03:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 23:03:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 10 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 178 [2024-11-16 23:03:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:09,700 INFO L225 Difference]: With dead ends: 741 [2024-11-16 23:03:09,700 INFO L226 Difference]: Without dead ends: 604 [2024-11-16 23:03:09,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:03:09,701 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 29 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:09,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3079 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 23:03:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-16 23:03:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 595. [2024-11-16 23:03:09,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.3338983050847457) internal successors, (787), 590 states have internal predecessors, (787), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 23:03:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 793 transitions. [2024-11-16 23:03:09,737 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 793 transitions. Word has length 178 [2024-11-16 23:03:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:09,738 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 793 transitions. [2024-11-16 23:03:09,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 10 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 793 transitions. [2024-11-16 23:03:09,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 23:03:09,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:09,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:09,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:03:09,741 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:09,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:09,742 INFO L85 PathProgramCache]: Analyzing trace with hash 848120856, now seen corresponding path program 1 times [2024-11-16 23:03:09,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:09,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671831492] [2024-11-16 23:03:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:09,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:10,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:10,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 23:03:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:10,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671831492] [2024-11-16 23:03:10,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671831492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65233356] [2024-11-16 23:03:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:10,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:10,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:10,050 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:10,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:03:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:10,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 23:03:10,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:03:10,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65233356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:10,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:10,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-16 23:03:10,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320054535] [2024-11-16 23:03:10,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:10,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:03:10,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:10,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:03:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:03:10,484 INFO L87 Difference]: Start difference. First operand 595 states and 793 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:10,563 INFO L93 Difference]: Finished difference Result 1015 states and 1345 transitions. [2024-11-16 23:03:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:03:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 178 [2024-11-16 23:03:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:10,566 INFO L225 Difference]: With dead ends: 1015 [2024-11-16 23:03:10,566 INFO L226 Difference]: Without dead ends: 598 [2024-11-16 23:03:10,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:03:10,567 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 0 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:10,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1199 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:03:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-16 23:03:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2024-11-16 23:03:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 592 states have (on average 1.3344594594594594) internal successors, (790), 593 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-16 23:03:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 797 transitions. [2024-11-16 23:03:10,579 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 797 transitions. Word has length 178 [2024-11-16 23:03:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:10,579 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 797 transitions. [2024-11-16 23:03:10,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 797 transitions. [2024-11-16 23:03:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 23:03:10,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:10,581 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:10,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 23:03:10,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:10,782 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:10,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash 591036692, now seen corresponding path program 1 times [2024-11-16 23:03:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:10,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073265008] [2024-11-16 23:03:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 23:03:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:11,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 23:03:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:03:11,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073265008] [2024-11-16 23:03:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073265008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398401480] [2024-11-16 23:03:11,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:11,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:11,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:11,219 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:11,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 23:03:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:11,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:03:11,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 23:03:11,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:11,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398401480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:11,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-16 23:03:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101200636] [2024-11-16 23:03:11,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:11,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:03:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:03:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:11,818 INFO L87 Difference]: Start difference. First operand 598 states and 797 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:12,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:12,310 INFO L93 Difference]: Finished difference Result 1072 states and 1428 transitions. [2024-11-16 23:03:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:03:12,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 180 [2024-11-16 23:03:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:12,313 INFO L225 Difference]: With dead ends: 1072 [2024-11-16 23:03:12,313 INFO L226 Difference]: Without dead ends: 612 [2024-11-16 23:03:12,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:12,314 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 12 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:12,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1781 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:03:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-16 23:03:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 598. [2024-11-16 23:03:12,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 592 states have (on average 1.3344594594594594) internal successors, (790), 593 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-16 23:03:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 797 transitions. [2024-11-16 23:03:12,327 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 797 transitions. Word has length 180 [2024-11-16 23:03:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:12,327 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 797 transitions. [2024-11-16 23:03:12,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 797 transitions. [2024-11-16 23:03:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 23:03:12,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:12,328 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:12,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 23:03:12,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-16 23:03:12,533 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:12,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1288678424, now seen corresponding path program 1 times [2024-11-16 23:03:12,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:12,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676620018] [2024-11-16 23:03:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:12,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:12,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 23:03:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:12,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 23:03:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 23:03:12,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:12,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676620018] [2024-11-16 23:03:12,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676620018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:12,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:12,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 23:03:12,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393185678] [2024-11-16 23:03:12,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:12,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:03:12,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:12,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:03:12,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:12,871 INFO L87 Difference]: Start difference. First operand 598 states and 797 transitions. Second operand has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:13,413 INFO L93 Difference]: Finished difference Result 1079 states and 1434 transitions. [2024-11-16 23:03:13,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:03:13,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 181 [2024-11-16 23:03:13,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:13,418 INFO L225 Difference]: With dead ends: 1079 [2024-11-16 23:03:13,418 INFO L226 Difference]: Without dead ends: 624 [2024-11-16 23:03:13,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:03:13,419 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 23 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:13,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2243 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:03:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-16 23:03:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 612. [2024-11-16 23:03:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 606 states have (on average 1.3333333333333333) internal successors, (808), 607 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-16 23:03:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 815 transitions. [2024-11-16 23:03:13,443 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 815 transitions. Word has length 181 [2024-11-16 23:03:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:13,443 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 815 transitions. [2024-11-16 23:03:13,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 815 transitions. [2024-11-16 23:03:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 23:03:13,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:13,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:13,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 23:03:13,445 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:13,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:13,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2098645790, now seen corresponding path program 1 times [2024-11-16 23:03:13,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:13,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531385606] [2024-11-16 23:03:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:13,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:13,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 23:03:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:13,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 23:03:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:03:13,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531385606] [2024-11-16 23:03:13,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531385606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274051286] [2024-11-16 23:03:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:13,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:13,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:13,820 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:13,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 23:03:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:14,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 23:03:14,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 23:03:14,362 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:03:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274051286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:14,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:03:14,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-16 23:03:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080371358] [2024-11-16 23:03:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:14,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:03:14,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:03:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:14,363 INFO L87 Difference]: Start difference. First operand 612 states and 815 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:14,917 INFO L93 Difference]: Finished difference Result 1102 states and 1467 transitions. [2024-11-16 23:03:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:03:14,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 181 [2024-11-16 23:03:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:14,919 INFO L225 Difference]: With dead ends: 1102 [2024-11-16 23:03:14,919 INFO L226 Difference]: Without dead ends: 640 [2024-11-16 23:03:14,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:03:14,920 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 42 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:14,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 1853 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:03:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-16 23:03:14,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 626. [2024-11-16 23:03:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 620 states have (on average 1.335483870967742) internal successors, (828), 621 states have internal predecessors, (828), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-16 23:03:14,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 835 transitions. [2024-11-16 23:03:14,932 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 835 transitions. Word has length 181 [2024-11-16 23:03:14,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:14,932 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 835 transitions. [2024-11-16 23:03:14,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 835 transitions. [2024-11-16 23:03:14,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 23:03:14,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:14,933 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:14,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 23:03:15,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:15,138 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:15,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1213752597, now seen corresponding path program 1 times [2024-11-16 23:03:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50560299] [2024-11-16 23:03:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:15,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 23:03:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:15,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 23:03:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 23:03:15,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50560299] [2024-11-16 23:03:15,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50560299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:03:15,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:03:15,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 23:03:15,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114947642] [2024-11-16 23:03:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:03:15,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 23:03:15,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:03:15,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 23:03:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 23:03:15,476 INFO L87 Difference]: Start difference. First operand 626 states and 835 transitions. Second operand has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 10 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:03:16,251 INFO L93 Difference]: Finished difference Result 1118 states and 1489 transitions. [2024-11-16 23:03:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 23:03:16,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 10 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 182 [2024-11-16 23:03:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:03:16,254 INFO L225 Difference]: With dead ends: 1118 [2024-11-16 23:03:16,254 INFO L226 Difference]: Without dead ends: 644 [2024-11-16 23:03:16,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:03:16,255 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 26 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 23:03:16,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2755 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 23:03:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-16 23:03:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 632. [2024-11-16 23:03:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 626 states have (on average 1.3322683706070289) internal successors, (834), 627 states have internal predecessors, (834), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-16 23:03:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 841 transitions. [2024-11-16 23:03:16,272 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 841 transitions. Word has length 182 [2024-11-16 23:03:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:03:16,272 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 841 transitions. [2024-11-16 23:03:16,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 10 states have internal predecessors, (174), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 23:03:16,272 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 841 transitions. [2024-11-16 23:03:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 23:03:16,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:03:16,274 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:03:16,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 23:03:16,274 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 23:03:16,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:03:16,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1874568027, now seen corresponding path program 1 times [2024-11-16 23:03:16,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:03:16,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76939211] [2024-11-16 23:03:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:03:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:16,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 23:03:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:16,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 23:03:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:03:16,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:03:16,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76939211] [2024-11-16 23:03:16,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76939211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:03:16,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988702900] [2024-11-16 23:03:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:03:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:03:16,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:03:16,699 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:03:16,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 23:03:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:03:17,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 132 conjuncts are in the unsatisfiable core [2024-11-16 23:03:17,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:03:17,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 23:03:17,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:03:17,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-16 23:03:17,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 23:03:17,818 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-16 23:03:17,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-16 23:03:17,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 23:03:17,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 23:03:17,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-16 23:03:17,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-16 23:03:17,992 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 23:03:17,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-16 23:03:17,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-16 23:03:21,521 INFO L224 Elim1Store]: Index analysis took 160 ms