./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash a7b742cc0d0eaef445a8f90399cbd092d4cb10efae03dcad0c8e37a0643e7fd6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:10:47,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:10:47,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 01:10:47,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:10:47,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:10:47,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:10:47,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:10:47,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:10:47,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:10:47,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:10:47,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:10:47,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:10:47,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:10:47,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:10:47,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:10:47,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:10:47,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:10:47,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:10:47,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:10:47,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:10:47,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:10:47,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:10:47,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:10:47,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:10:47,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:10:47,323 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:10:47,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:10:47,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:10:47,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:10:47,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:10:47,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:10:47,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:10:47,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:10:47,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:10:47,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:10:47,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:10:47,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:10:47,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:10:47,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:10:47,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7b742cc0d0eaef445a8f90399cbd092d4cb10efae03dcad0c8e37a0643e7fd6 [2024-11-10 01:10:47,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:10:47,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:10:47,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:10:47,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:10:47,610 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:10:47,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c [2024-11-10 01:10:49,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:10:49,320 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:10:49,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c [2024-11-10 01:10:49,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c8dd028/c0250d870a584e298d53ebf12299f6a4/FLAGc23379700 [2024-11-10 01:10:49,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c8dd028/c0250d870a584e298d53ebf12299f6a4 [2024-11-10 01:10:49,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:10:49,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:10:49,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:10:49,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:10:49,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:10:49,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:10:49" (1/1) ... [2024-11-10 01:10:49,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27bb95fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:49, skipping insertion in model container [2024-11-10 01:10:49,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:10:49" (1/1) ... [2024-11-10 01:10:49,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:10:49,667 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/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c[1266,1279] [2024-11-10 01:10:50,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:10:50,055 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:10:50,065 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/hardware-verification-array/btor2c-lazyMod.safe_linked_list_fifo_n2d4.c[1266,1279] [2024-11-10 01:10:50,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:10:50,236 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:10:50,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50 WrapperNode [2024-11-10 01:10:50,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:10:50,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:10:50,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:10:50,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:10:50,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:50,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:50,791 INFO L138 Inliner]: procedures = 18, calls = 107, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3714 [2024-11-10 01:10:50,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:10:50,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:10:50,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:10:50,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:10:50,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:50,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:50,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,087 INFO L175 MemorySlicer]: Split 63 memory accesses to 4 slices as follows [24, 2, 29, 8]. 46 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 30 writes are split as follows [12, 0, 14, 4]. [2024-11-10 01:10:51,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:10:51,339 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:10:51,339 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:10:51,340 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:10:51,340 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (1/1) ... [2024-11-10 01:10:51,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:10:51,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:10:51,376 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) [2024-11-10 01:10:51,378 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 [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 01:10:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 01:10:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:10:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:10:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 01:10:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 01:10:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 01:10:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 01:10:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 01:10:51,733 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:10:51,735 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:10:54,549 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L144: call ULTIMATE.dealloc(main_~#state_13~0#1.base, main_~#state_13~0#1.offset);havoc main_~#state_13~0#1.base, main_~#state_13~0#1.offset;call ULTIMATE.dealloc(main_~#state_15~0#1.base, main_~#state_15~0#1.offset);havoc main_~#state_15~0#1.base, main_~#state_15~0#1.offset;call ULTIMATE.dealloc(main_~#state_249~0#1.base, main_~#state_249~0#1.offset);havoc main_~#state_249~0#1.base, main_~#state_249~0#1.offset; [2024-11-10 01:10:55,119 INFO L? ?]: Removed 1909 outVars from TransFormulas that were not future-live. [2024-11-10 01:10:55,120 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:10:55,325 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:10:55,326 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:10:55,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:10:55 BoogieIcfgContainer [2024-11-10 01:10:55,327 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:10:55,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:10:55,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:10:55,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:10:55,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:10:49" (1/3) ... [2024-11-10 01:10:55,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cfec67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:10:55, skipping insertion in model container [2024-11-10 01:10:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:10:50" (2/3) ... [2024-11-10 01:10:55,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cfec67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:10:55, skipping insertion in model container [2024-11-10 01:10:55,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:10:55" (3/3) ... [2024-11-10 01:10:55,339 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_linked_list_fifo_n2d4.c [2024-11-10 01:10:55,357 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:10:55,357 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 01:10:55,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:10:55,504 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;@34ac841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:10:55,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 01:10:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 1152 states, 1144 states have (on average 1.5026223776223777) internal successors, (1719), 1145 states have internal predecessors, (1719), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:10:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-10 01:10:55,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:10:55,541 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:10:55,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:10:55,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:10:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash 268083584, now seen corresponding path program 1 times [2024-11-10 01:10:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:10:55,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071544653] [2024-11-10 01:10:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:10:55,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:10:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-10 01:10:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-10 01:10:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-11-10 01:10:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-11-10 01:10:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:10:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:10:56,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:10:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071544653] [2024-11-10 01:10:56,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071544653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:10:56,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:10:56,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 01:10:56,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468540543] [2024-11-10 01:10:56,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:10:56,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 01:10:56,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:10:56,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 01:10:56,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:10:56,234 INFO L87 Difference]: Start difference. First operand has 1152 states, 1144 states have (on average 1.5026223776223777) internal successors, (1719), 1145 states have internal predecessors, (1719), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:10:56,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:10:56,641 INFO L93 Difference]: Finished difference Result 2291 states and 3447 transitions. [2024-11-10 01:10:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 01:10:56,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 336 [2024-11-10 01:10:56,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:10:56,669 INFO L225 Difference]: With dead ends: 2291 [2024-11-10 01:10:56,670 INFO L226 Difference]: Without dead ends: 1147 [2024-11-10 01:10:56,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:10:56,682 INFO L432 NwaCegarLoop]: 1436 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:10:56,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1436 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:10:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-10 01:10:56,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2024-11-10 01:10:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1140 states have (on average 1.4859649122807017) internal successors, (1694), 1140 states have internal predecessors, (1694), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:10:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1704 transitions. [2024-11-10 01:10:56,796 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1704 transitions. Word has length 336 [2024-11-10 01:10:56,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:10:56,799 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1704 transitions. [2024-11-10 01:10:56,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:10:56,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1704 transitions. [2024-11-10 01:10:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-10 01:10:56,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:10:56,805 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:10:56,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:10:56,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:10:56,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:10:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash 669066668, now seen corresponding path program 1 times [2024-11-10 01:10:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:10:56,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063481393] [2024-11-10 01:10:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:10:56,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:10:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-10 01:10:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-10 01:10:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-11-10 01:10:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-10 01:10:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-11-10 01:10:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:10:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:10:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063481393] [2024-11-10 01:10:57,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063481393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:10:57,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:10:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:10:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590567728] [2024-11-10 01:10:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:10:57,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:10:57,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:10:57,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:10:57,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:10:57,604 INFO L87 Difference]: Start difference. First operand 1147 states and 1704 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:10:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:10:58,031 INFO L93 Difference]: Finished difference Result 2292 states and 3406 transitions. [2024-11-10 01:10:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:10:58,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 339 [2024-11-10 01:10:58,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:10:58,036 INFO L225 Difference]: With dead ends: 2292 [2024-11-10 01:10:58,036 INFO L226 Difference]: Without dead ends: 1153 [2024-11-10 01:10:58,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:10:58,039 INFO L432 NwaCegarLoop]: 1434 mSDtfsCounter, 6 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:10:58,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2865 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:10:58,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-10 01:10:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1149. [2024-11-10 01:10:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1142 states have (on average 1.4851138353765323) internal successors, (1696), 1142 states have internal predecessors, (1696), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:10:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1706 transitions. [2024-11-10 01:10:58,068 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1706 transitions. Word has length 339 [2024-11-10 01:10:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:10:58,068 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1706 transitions. [2024-11-10 01:10:58,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:10:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1706 transitions. [2024-11-10 01:10:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-10 01:10:58,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:10:58,074 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:10:58,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 01:10:58,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:10:58,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:10:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 253996078, now seen corresponding path program 1 times [2024-11-10 01:10:58,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:10:58,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072245027] [2024-11-10 01:10:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:10:58,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:10:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-10 01:10:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-10 01:10:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-11-10 01:10:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-10 01:10:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-11-10 01:10:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:10:58,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:10:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072245027] [2024-11-10 01:10:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072245027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:10:58,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850338972] [2024-11-10 01:10:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:10:58,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:10:58,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:10:58,680 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) [2024-11-10 01:10:58,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 01:10:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:10:59,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 01:10:59,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:10:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:10:59,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:10:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:10:59,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850338972] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:10:59,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:10:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-10 01:10:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889607637] [2024-11-10 01:10:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:10:59,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:10:59,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:10:59,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:10:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:10:59,522 INFO L87 Difference]: Start difference. First operand 1149 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:10:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:10:59,989 INFO L93 Difference]: Finished difference Result 2108 states and 3130 transitions. [2024-11-10 01:10:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:10:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 343 [2024-11-10 01:10:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:10:59,995 INFO L225 Difference]: With dead ends: 2108 [2024-11-10 01:10:59,995 INFO L226 Difference]: Without dead ends: 1151 [2024-11-10 01:10:59,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:10:59,999 INFO L432 NwaCegarLoop]: 1434 mSDtfsCounter, 6 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:00,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2860 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:11:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-10 01:11:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2024-11-10 01:11:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1144 states have (on average 1.4842657342657342) internal successors, (1698), 1144 states have internal predecessors, (1698), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1708 transitions. [2024-11-10 01:11:00,034 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1708 transitions. Word has length 343 [2024-11-10 01:11:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:00,035 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1708 transitions. [2024-11-10 01:11:00,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1708 transitions. [2024-11-10 01:11:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-10 01:11:00,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:00,043 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:00,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 01:11:00,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:00,244 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:00,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -639388496, now seen corresponding path program 1 times [2024-11-10 01:11:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498512243] [2024-11-10 01:11:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-10 01:11:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-11-10 01:11:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-10 01:11:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-11-10 01:11:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-10 01:11:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:00,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498512243] [2024-11-10 01:11:00,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498512243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:00,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882371404] [2024-11-10 01:11:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:00,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:00,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:00,805 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) [2024-11-10 01:11:00,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 01:11:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:01,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 01:11:01,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:01,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:02,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882371404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:02,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:02,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8] total 12 [2024-11-10 01:11:02,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459902106] [2024-11-10 01:11:02,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:02,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 01:11:02,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:02,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 01:11:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-10 01:11:02,187 INFO L87 Difference]: Start difference. First operand 1151 states and 1708 transitions. Second operand has 12 states, 12 states have (on average 48.416666666666664) internal successors, (581), 12 states have internal predecessors, (581), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:05,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:05,800 INFO L93 Difference]: Finished difference Result 2715 states and 4031 transitions. [2024-11-10 01:11:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:05,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 48.416666666666664) internal successors, (581), 12 states have internal predecessors, (581), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 347 [2024-11-10 01:11:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:05,807 INFO L225 Difference]: With dead ends: 2715 [2024-11-10 01:11:05,807 INFO L226 Difference]: Without dead ends: 1574 [2024-11-10 01:11:05,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 696 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:05,811 INFO L432 NwaCegarLoop]: 955 mSDtfsCounter, 3521 mSDsluCounter, 6533 mSDsCounter, 0 mSdLazyCounter, 6912 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 6918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:05,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 7488 Invalid, 6918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6912 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-10 01:11:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-10 01:11:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1175. [2024-11-10 01:11:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1168 states have (on average 1.4828767123287672) internal successors, (1732), 1168 states have internal predecessors, (1732), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1742 transitions. [2024-11-10 01:11:05,843 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1742 transitions. Word has length 347 [2024-11-10 01:11:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:05,843 INFO L471 AbstractCegarLoop]: Abstraction has 1175 states and 1742 transitions. [2024-11-10 01:11:05,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 48.416666666666664) internal successors, (581), 12 states have internal predecessors, (581), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1742 transitions. [2024-11-10 01:11:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-10 01:11:05,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:05,849 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:05,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:06,053 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,SelfDestructingSolverStorable3 [2024-11-10 01:11:06,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:06,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1741299184, now seen corresponding path program 1 times [2024-11-10 01:11:06,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995977097] [2024-11-10 01:11:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-10 01:11:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-11-10 01:11:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-11-10 01:11:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-11-10 01:11:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-11-10 01:11:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995977097] [2024-11-10 01:11:06,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995977097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621678706] [2024-11-10 01:11:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:06,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:06,645 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) [2024-11-10 01:11:06,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 01:11:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 01:11:07,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:07,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-10 01:11:07,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621678706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:07,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:07,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-11-10 01:11:07,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776725659] [2024-11-10 01:11:07,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:07,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:11:07,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:11:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:07,358 INFO L87 Difference]: Start difference. First operand 1175 states and 1742 transitions. Second operand has 9 states, 9 states have (on average 48.888888888888886) internal successors, (440), 9 states have internal predecessors, (440), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:08,206 INFO L93 Difference]: Finished difference Result 2362 states and 3505 transitions. [2024-11-10 01:11:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 48.888888888888886) internal successors, (440), 9 states have internal predecessors, (440), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 352 [2024-11-10 01:11:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:08,211 INFO L225 Difference]: With dead ends: 2362 [2024-11-10 01:11:08,212 INFO L226 Difference]: Without dead ends: 1203 [2024-11-10 01:11:08,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:08,214 INFO L432 NwaCegarLoop]: 1442 mSDtfsCounter, 54 mSDsluCounter, 7174 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 8616 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:08,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 8616 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:11:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-10 01:11:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1199. [2024-11-10 01:11:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1192 states have (on average 1.4798657718120805) internal successors, (1764), 1192 states have internal predecessors, (1764), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1774 transitions. [2024-11-10 01:11:08,239 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1774 transitions. Word has length 352 [2024-11-10 01:11:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:08,240 INFO L471 AbstractCegarLoop]: Abstraction has 1199 states and 1774 transitions. [2024-11-10 01:11:08,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.888888888888886) internal successors, (440), 9 states have internal predecessors, (440), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1774 transitions. [2024-11-10 01:11:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-10 01:11:08,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:08,245 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:08,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 01:11:08,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:08,447 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 718904808, now seen corresponding path program 2 times [2024-11-10 01:11:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:08,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397186827] [2024-11-10 01:11:08,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-11-10 01:11:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-11-10 01:11:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-11-10 01:11:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-11-10 01:11:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-10 01:11:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 01:11:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:09,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397186827] [2024-11-10 01:11:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397186827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:09,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157365907] [2024-11-10 01:11:09,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 01:11:09,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:09,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:09,041 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) [2024-11-10 01:11:09,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 01:11:09,618 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 01:11:09,618 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 01:11:09,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-10 01:11:09,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:09,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:09,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157365907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:09,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:09,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-10 01:11:09,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117603512] [2024-11-10 01:11:09,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:09,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:11:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:11:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:09,730 INFO L87 Difference]: Start difference. First operand 1199 states and 1774 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:10,908 INFO L93 Difference]: Finished difference Result 2375 states and 3518 transitions. [2024-11-10 01:11:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:11:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 368 [2024-11-10 01:11:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:10,914 INFO L225 Difference]: With dead ends: 2375 [2024-11-10 01:11:10,915 INFO L226 Difference]: Without dead ends: 1205 [2024-11-10 01:11:10,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:10,919 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 1696 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:10,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 1743 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 01:11:10,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-10 01:11:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1201. [2024-11-10 01:11:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1194 states have (on average 1.4790619765494137) internal successors, (1766), 1194 states have internal predecessors, (1766), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1776 transitions. [2024-11-10 01:11:10,951 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1776 transitions. Word has length 368 [2024-11-10 01:11:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:10,952 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1776 transitions. [2024-11-10 01:11:10,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1776 transitions. [2024-11-10 01:11:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-10 01:11:10,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:10,955 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:10,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 01:11:11,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:11,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:11,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1258758294, now seen corresponding path program 1 times [2024-11-10 01:11:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:11,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661436805] [2024-11-10 01:11:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:11,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-11-10 01:11:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-11-10 01:11:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-11-10 01:11:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-10 01:11:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-10 01:11:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-10 01:11:11,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:11,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661436805] [2024-11-10 01:11:11,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661436805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:11,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562693984] [2024-11-10 01:11:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:11,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:11,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:11,763 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) [2024-11-10 01:11:11,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 01:11:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:12,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 01:11:12,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-10 01:11:12,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:12,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562693984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:12,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:12,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 10] total 15 [2024-11-10 01:11:12,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394238269] [2024-11-10 01:11:12,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:12,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 01:11:12,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:12,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 01:11:12,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:11:12,651 INFO L87 Difference]: Start difference. First operand 1201 states and 1776 transitions. Second operand has 15 states, 15 states have (on average 24.8) internal successors, (372), 15 states have internal predecessors, (372), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:13,731 INFO L93 Difference]: Finished difference Result 2390 states and 3538 transitions. [2024-11-10 01:11:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:11:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 24.8) internal successors, (372), 15 states have internal predecessors, (372), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 372 [2024-11-10 01:11:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:13,736 INFO L225 Difference]: With dead ends: 2390 [2024-11-10 01:11:13,736 INFO L226 Difference]: Without dead ends: 1211 [2024-11-10 01:11:13,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:11:13,739 INFO L432 NwaCegarLoop]: 1449 mSDtfsCounter, 79 mSDsluCounter, 11541 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 12990 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:13,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 12990 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 01:11:13,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-10 01:11:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1207. [2024-11-10 01:11:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1200 states have (on average 1.4783333333333333) internal successors, (1774), 1200 states have internal predecessors, (1774), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1784 transitions. [2024-11-10 01:11:13,765 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1784 transitions. Word has length 372 [2024-11-10 01:11:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:13,765 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1784 transitions. [2024-11-10 01:11:13,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 24.8) internal successors, (372), 15 states have internal predecessors, (372), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1784 transitions. [2024-11-10 01:11:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-10 01:11:13,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:13,768 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:13,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 01:11:13,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:13,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:13,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:13,970 INFO L85 PathProgramCache]: Analyzing trace with hash -390024920, now seen corresponding path program 2 times [2024-11-10 01:11:13,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:13,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662322533] [2024-11-10 01:11:13,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:13,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-11-10 01:11:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-10 01:11:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-10 01:11:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:14,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662322533] [2024-11-10 01:11:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662322533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784565962] [2024-11-10 01:11:14,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 01:11:14,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:14,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:14,398 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) [2024-11-10 01:11:14,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 01:11:15,081 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 01:11:15,082 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 01:11:15,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-10 01:11:15,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:15,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784565962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:15,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-10 01:11:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723557706] [2024-11-10 01:11:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:15,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:11:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:11:15,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:15,449 INFO L87 Difference]: Start difference. First operand 1207 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 46.714285714285715) internal successors, (327), 7 states have internal predecessors, (327), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:17,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:17,120 INFO L93 Difference]: Finished difference Result 1921 states and 2840 transitions. [2024-11-10 01:11:17,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:11:17,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.714285714285715) internal successors, (327), 7 states have internal predecessors, (327), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 376 [2024-11-10 01:11:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:17,127 INFO L225 Difference]: With dead ends: 1921 [2024-11-10 01:11:17,127 INFO L226 Difference]: Without dead ends: 1211 [2024-11-10 01:11:17,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:17,129 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 1456 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 4069 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 4070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:17,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 4458 Invalid, 4070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4069 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-10 01:11:17,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2024-11-10 01:11:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 1204 states have (on average 1.4767441860465116) internal successors, (1778), 1204 states have internal predecessors, (1778), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1788 transitions. [2024-11-10 01:11:17,159 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1788 transitions. Word has length 376 [2024-11-10 01:11:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:17,161 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 1788 transitions. [2024-11-10 01:11:17,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.714285714285715) internal successors, (327), 7 states have internal predecessors, (327), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1788 transitions. [2024-11-10 01:11:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-10 01:11:17,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:17,164 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:17,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 01:11:17,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:17,369 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:17,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 939183679, now seen corresponding path program 1 times [2024-11-10 01:11:17,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:17,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4089226] [2024-11-10 01:11:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:17,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-11-10 01:11:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-10 01:11:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-10 01:11:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:17,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4089226] [2024-11-10 01:11:17,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4089226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159960820] [2024-11-10 01:11:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:17,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:17,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:17,828 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) [2024-11-10 01:11:17,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 01:11:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:18,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-10 01:11:18,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:19,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159960820] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:20,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:20,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 11] total 24 [2024-11-10 01:11:20,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686774445] [2024-11-10 01:11:20,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:20,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 01:11:20,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:20,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 01:11:20,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-11-10 01:11:20,111 INFO L87 Difference]: Start difference. First operand 1211 states and 1788 transitions. Second operand has 13 states, 13 states have (on average 25.23076923076923) internal successors, (328), 13 states have internal predecessors, (328), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:23,089 INFO L93 Difference]: Finished difference Result 2484 states and 3669 transitions. [2024-11-10 01:11:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 01:11:23,091 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 25.23076923076923) internal successors, (328), 13 states have internal predecessors, (328), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 377 [2024-11-10 01:11:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:23,096 INFO L225 Difference]: With dead ends: 2484 [2024-11-10 01:11:23,096 INFO L226 Difference]: Without dead ends: 1213 [2024-11-10 01:11:23,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-11-10 01:11:23,098 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 10880 mSDsluCounter, 5266 mSDsCounter, 0 mSdLazyCounter, 5852 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10884 SdHoareTripleChecker+Valid, 6165 SdHoareTripleChecker+Invalid, 5907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 5852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:23,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10884 Valid, 6165 Invalid, 5907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 5852 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-10 01:11:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-10 01:11:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2024-11-10 01:11:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1206 states have (on average 1.4751243781094527) internal successors, (1779), 1206 states have internal predecessors, (1779), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1789 transitions. [2024-11-10 01:11:23,127 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1789 transitions. Word has length 377 [2024-11-10 01:11:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:23,128 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1789 transitions. [2024-11-10 01:11:23,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 25.23076923076923) internal successors, (328), 13 states have internal predecessors, (328), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1789 transitions. [2024-11-10 01:11:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-10 01:11:23,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:23,132 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:23,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 01:11:23,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:23,333 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:23,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:23,333 INFO L85 PathProgramCache]: Analyzing trace with hash -100199634, now seen corresponding path program 1 times [2024-11-10 01:11:23,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:23,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617626921] [2024-11-10 01:11:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:23,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 01:11:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-10 01:11:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-10 01:11:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:23,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617626921] [2024-11-10 01:11:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617626921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030941148] [2024-11-10 01:11:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:23,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:23,812 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) [2024-11-10 01:11:23,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 01:11:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-10 01:11:24,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-10 01:11:25,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:25,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030941148] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:25,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:25,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 8] total 18 [2024-11-10 01:11:25,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273732204] [2024-11-10 01:11:25,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:25,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:25,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:25,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:25,683 INFO L87 Difference]: Start difference. First operand 1213 states and 1789 transitions. Second operand has 10 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:27,294 INFO L93 Difference]: Finished difference Result 1931 states and 2847 transitions. [2024-11-10 01:11:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:27,295 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 378 [2024-11-10 01:11:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:27,300 INFO L225 Difference]: With dead ends: 1931 [2024-11-10 01:11:27,300 INFO L226 Difference]: Without dead ends: 1215 [2024-11-10 01:11:27,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-10 01:11:27,302 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 3369 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:27,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 3495 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 01:11:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-10 01:11:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2024-11-10 01:11:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1208 states have (on average 1.4735099337748345) internal successors, (1780), 1208 states have internal predecessors, (1780), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1790 transitions. [2024-11-10 01:11:27,330 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1790 transitions. Word has length 378 [2024-11-10 01:11:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:27,331 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1790 transitions. [2024-11-10 01:11:27,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:27,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1790 transitions. [2024-11-10 01:11:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-10 01:11:27,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:27,334 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:27,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 01:11:27,534 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,SelfDestructingSolverStorable9 [2024-11-10 01:11:27,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:27,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:27,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1451789753, now seen corresponding path program 1 times [2024-11-10 01:11:27,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:27,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659716432] [2024-11-10 01:11:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 01:11:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-10 01:11:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-10 01:11:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:28,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:28,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659716432] [2024-11-10 01:11:28,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659716432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:28,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787631748] [2024-11-10 01:11:28,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:28,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:28,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:28,067 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) [2024-11-10 01:11:28,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 01:11:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-10 01:11:28,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-10 01:11:29,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787631748] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:29,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:29,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 8] total 18 [2024-11-10 01:11:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471638186] [2024-11-10 01:11:29,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:29,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:29,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:29,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:29,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:29,841 INFO L87 Difference]: Start difference. First operand 1215 states and 1790 transitions. Second operand has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:31,475 INFO L93 Difference]: Finished difference Result 1935 states and 2849 transitions. [2024-11-10 01:11:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 379 [2024-11-10 01:11:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:31,480 INFO L225 Difference]: With dead ends: 1935 [2024-11-10 01:11:31,480 INFO L226 Difference]: Without dead ends: 1217 [2024-11-10 01:11:31,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-10 01:11:31,482 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 6744 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6748 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 3352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:31,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6748 Valid, 3500 Invalid, 3352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 01:11:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-10 01:11:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2024-11-10 01:11:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1210 states have (on average 1.471900826446281) internal successors, (1781), 1210 states have internal predecessors, (1781), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1791 transitions. [2024-11-10 01:11:31,509 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1791 transitions. Word has length 379 [2024-11-10 01:11:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:31,510 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1791 transitions. [2024-11-10 01:11:31,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:31,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1791 transitions. [2024-11-10 01:11:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-10 01:11:31,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:31,513 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:31,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 01:11:31,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:31,714 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:31,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:31,715 INFO L85 PathProgramCache]: Analyzing trace with hash 208936436, now seen corresponding path program 1 times [2024-11-10 01:11:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:31,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701644800] [2024-11-10 01:11:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:31,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 01:11:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-10 01:11:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-10 01:11:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:32,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701644800] [2024-11-10 01:11:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701644800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136918833] [2024-11-10 01:11:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:32,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:32,159 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) [2024-11-10 01:11:32,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 01:11:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-10 01:11:32,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-10 01:11:33,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:33,807 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:33,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136918833] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:33,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:33,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 9] total 19 [2024-11-10 01:11:33,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16199578] [2024-11-10 01:11:33,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:33,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:33,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-10 01:11:33,809 INFO L87 Difference]: Start difference. First operand 1217 states and 1791 transitions. Second operand has 10 states, 10 states have (on average 33.1) internal successors, (331), 10 states have internal predecessors, (331), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:35,483 INFO L93 Difference]: Finished difference Result 1938 states and 2850 transitions. [2024-11-10 01:11:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.1) internal successors, (331), 10 states have internal predecessors, (331), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 380 [2024-11-10 01:11:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:35,488 INFO L225 Difference]: With dead ends: 1938 [2024-11-10 01:11:35,488 INFO L226 Difference]: Without dead ends: 1218 [2024-11-10 01:11:35,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-10 01:11:35,489 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 6660 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6662 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:35,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6662 Valid, 3482 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2024-11-10 01:11:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2024-11-10 01:11:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1211 states have (on average 1.4715111478117258) internal successors, (1782), 1211 states have internal predecessors, (1782), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1792 transitions. [2024-11-10 01:11:35,517 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1792 transitions. Word has length 380 [2024-11-10 01:11:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:35,518 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1792 transitions. [2024-11-10 01:11:35,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.1) internal successors, (331), 10 states have internal predecessors, (331), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1792 transitions. [2024-11-10 01:11:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-10 01:11:35,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:35,522 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:35,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 01:11:35,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-10 01:11:35,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:35,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:35,724 INFO L85 PathProgramCache]: Analyzing trace with hash 263850908, now seen corresponding path program 1 times [2024-11-10 01:11:35,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:35,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431772031] [2024-11-10 01:11:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:35,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 01:11:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-10 01:11:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-10 01:11:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:36,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431772031] [2024-11-10 01:11:36,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431772031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212544797] [2024-11-10 01:11:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:36,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:36,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:36,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 01:11:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:36,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-10 01:11:36,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:37,483 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-10 01:11:37,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212544797] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:37,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:37,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 8] total 18 [2024-11-10 01:11:37,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415236918] [2024-11-10 01:11:37,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:37,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:37,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:37,756 INFO L87 Difference]: Start difference. First operand 1218 states and 1792 transitions. Second operand has 10 states, 10 states have (on average 33.2) internal successors, (332), 10 states have internal predecessors, (332), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:39,428 INFO L93 Difference]: Finished difference Result 1940 states and 2852 transitions. [2024-11-10 01:11:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:39,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.2) internal successors, (332), 10 states have internal predecessors, (332), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 381 [2024-11-10 01:11:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:39,435 INFO L225 Difference]: With dead ends: 1940 [2024-11-10 01:11:39,435 INFO L226 Difference]: Without dead ends: 1219 [2024-11-10 01:11:39,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-10 01:11:39,437 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 3344 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:39,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 3482 Invalid, 3341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-10 01:11:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2024-11-10 01:11:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1212 states have (on average 1.471122112211221) internal successors, (1783), 1212 states have internal predecessors, (1783), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1793 transitions. [2024-11-10 01:11:39,462 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1793 transitions. Word has length 381 [2024-11-10 01:11:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:39,463 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1793 transitions. [2024-11-10 01:11:39,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.2) internal successors, (332), 10 states have internal predecessors, (332), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1793 transitions. [2024-11-10 01:11:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-10 01:11:39,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:39,466 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:39,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-10 01:11:39,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 01:11:39,668 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:39,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:39,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1603713332, now seen corresponding path program 1 times [2024-11-10 01:11:39,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:39,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975380301] [2024-11-10 01:11:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:39,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 01:11:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-10 01:11:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-10 01:11:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975380301] [2024-11-10 01:11:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975380301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739372065] [2024-11-10 01:11:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:40,097 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:40,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 01:11:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:40,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-10 01:11:40,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:41,467 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:41,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739372065] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:41,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 8] total 18 [2024-11-10 01:11:41,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788159691] [2024-11-10 01:11:41,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:41,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:41,715 INFO L87 Difference]: Start difference. First operand 1219 states and 1793 transitions. Second operand has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:43,388 INFO L93 Difference]: Finished difference Result 1942 states and 2854 transitions. [2024-11-10 01:11:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:43,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 382 [2024-11-10 01:11:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:43,397 INFO L225 Difference]: With dead ends: 1942 [2024-11-10 01:11:43,397 INFO L226 Difference]: Without dead ends: 1220 [2024-11-10 01:11:43,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-10 01:11:43,399 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 3346 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3349 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:43,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3349 Valid, 3482 Invalid, 3341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-10 01:11:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2024-11-10 01:11:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1213 states have (on average 1.4707337180544104) internal successors, (1784), 1213 states have internal predecessors, (1784), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1794 transitions. [2024-11-10 01:11:43,424 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1794 transitions. Word has length 382 [2024-11-10 01:11:43,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:43,425 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1794 transitions. [2024-11-10 01:11:43,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1794 transitions. [2024-11-10 01:11:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-10 01:11:43,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:43,428 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:43,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 01:11:43,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 01:11:43,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:43,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:43,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1970891409, now seen corresponding path program 1 times [2024-11-10 01:11:43,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:43,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631135671] [2024-11-10 01:11:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:43,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-11-10 01:11:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-10 01:11:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-10 01:11:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:44,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:44,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631135671] [2024-11-10 01:11:44,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631135671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:44,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908506343] [2024-11-10 01:11:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:44,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:44,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:44,043 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:44,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 01:11:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:44,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-10 01:11:44,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:45,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:45,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908506343] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:45,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:45,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 7] total 13 [2024-11-10 01:11:45,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164881858] [2024-11-10 01:11:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:45,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:11:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:11:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:45,585 INFO L87 Difference]: Start difference. First operand 1220 states and 1794 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:47,241 INFO L93 Difference]: Finished difference Result 2658 states and 3905 transitions. [2024-11-10 01:11:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:47,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 383 [2024-11-10 01:11:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:47,248 INFO L225 Difference]: With dead ends: 2658 [2024-11-10 01:11:47,249 INFO L226 Difference]: Without dead ends: 1934 [2024-11-10 01:11:47,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:11:47,251 INFO L432 NwaCegarLoop]: 1041 mSDtfsCounter, 2633 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:47,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 3822 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-10 01:11:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1931. [2024-11-10 01:11:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1919 states have (on average 1.4700364773319436) internal successors, (2821), 1919 states have internal predecessors, (2821), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2841 transitions. [2024-11-10 01:11:47,288 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2841 transitions. Word has length 383 [2024-11-10 01:11:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:47,288 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2841 transitions. [2024-11-10 01:11:47,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2841 transitions. [2024-11-10 01:11:47,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-10 01:11:47,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:47,292 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:47,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-10 01:11:47,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 01:11:47,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:47,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1457135330, now seen corresponding path program 1 times [2024-11-10 01:11:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:47,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238288927] [2024-11-10 01:11:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-11-10 01:11:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-11-10 01:11:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-10 01:11:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-10 01:11:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:47,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238288927] [2024-11-10 01:11:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238288927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390599714] [2024-11-10 01:11:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:47,979 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:47,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 01:11:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:48,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-10 01:11:48,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-10 01:11:49,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:49,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390599714] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:49,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:49,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 7] total 17 [2024-11-10 01:11:49,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475118277] [2024-11-10 01:11:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:49,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:49,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:49,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:49,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-10 01:11:49,851 INFO L87 Difference]: Start difference. First operand 1931 states and 2841 transitions. Second operand has 10 states, 10 states have (on average 33.4) internal successors, (334), 10 states have internal predecessors, (334), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:52,480 INFO L93 Difference]: Finished difference Result 3482 states and 5110 transitions. [2024-11-10 01:11:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:11:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.4) internal successors, (334), 10 states have internal predecessors, (334), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 383 [2024-11-10 01:11:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:52,488 INFO L225 Difference]: With dead ends: 3482 [2024-11-10 01:11:52,488 INFO L226 Difference]: Without dead ends: 1935 [2024-11-10 01:11:52,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-10 01:11:52,491 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 1735 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 5895 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 5900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:52,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 6277 Invalid, 5900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5895 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-10 01:11:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2024-11-10 01:11:52,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2024-11-10 01:11:52,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1923 states have (on average 1.46801872074883) internal successors, (2823), 1923 states have internal predecessors, (2823), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2843 transitions. [2024-11-10 01:11:52,525 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2843 transitions. Word has length 383 [2024-11-10 01:11:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:52,525 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2843 transitions. [2024-11-10 01:11:52,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.4) internal successors, (334), 10 states have internal predecessors, (334), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 01:11:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2843 transitions. [2024-11-10 01:11:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-10 01:11:52,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:52,529 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:52,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:52,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:52,730 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:52,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash -352038096, now seen corresponding path program 1 times [2024-11-10 01:11:52,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:52,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022178445] [2024-11-10 01:11:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-11-10 01:11:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-11-10 01:11:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-10 01:11:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-10 01:11:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:53,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:53,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022178445] [2024-11-10 01:11:53,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022178445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:53,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912980454] [2024-11-10 01:11:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:53,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:53,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:53,127 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:53,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 01:11:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:53,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-10 01:11:53,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:54,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:54,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912980454] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:54,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:54,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 9] total 19 [2024-11-10 01:11:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087312377] [2024-11-10 01:11:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:54,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:54,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:54,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-10 01:11:54,828 INFO L87 Difference]: Start difference. First operand 1935 states and 2843 transitions. Second operand has 10 states, 10 states have (on average 33.5) internal successors, (335), 10 states have internal predecessors, (335), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:56,508 INFO L93 Difference]: Finished difference Result 3375 states and 4956 transitions. [2024-11-10 01:11:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.5) internal successors, (335), 10 states have internal predecessors, (335), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 384 [2024-11-10 01:11:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:56,514 INFO L225 Difference]: With dead ends: 3375 [2024-11-10 01:11:56,514 INFO L226 Difference]: Without dead ends: 1937 [2024-11-10 01:11:56,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-10 01:11:56,516 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 3366 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:56,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 3487 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 01:11:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-10 01:11:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1937. [2024-11-10 01:11:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1925 states have (on average 1.4675324675324675) internal successors, (2825), 1925 states have internal predecessors, (2825), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2845 transitions. [2024-11-10 01:11:56,552 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2845 transitions. Word has length 384 [2024-11-10 01:11:56,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:56,552 INFO L471 AbstractCegarLoop]: Abstraction has 1937 states and 2845 transitions. [2024-11-10 01:11:56,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.5) internal successors, (335), 10 states have internal predecessors, (335), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:56,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2845 transitions. [2024-11-10 01:11:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-10 01:11:56,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:56,556 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:56,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-10 01:11:56,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-10 01:11:56,757 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:56,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:56,759 INFO L85 PathProgramCache]: Analyzing trace with hash -555372675, now seen corresponding path program 1 times [2024-11-10 01:11:56,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:56,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121622424] [2024-11-10 01:11:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:56,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-10 01:11:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-11-10 01:11:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-11-10 01:11:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-10 01:11:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-10 01:11:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:57,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:57,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121622424] [2024-11-10 01:11:57,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121622424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:57,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305227896] [2024-11-10 01:11:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:57,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:57,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:57,144 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:57,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 01:11:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-10 01:11:57,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:11:58,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-10 01:11:58,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305227896] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:58,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:58,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 7] total 17 [2024-11-10 01:11:58,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803401074] [2024-11-10 01:11:58,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:58,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:58,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:58,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-10 01:11:58,822 INFO L87 Difference]: Start difference. First operand 1937 states and 2845 transitions. Second operand has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:12:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:12:01,727 INFO L93 Difference]: Finished difference Result 3536 states and 5176 transitions. [2024-11-10 01:12:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:12:01,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 385 [2024-11-10 01:12:01,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:12:01,734 INFO L225 Difference]: With dead ends: 3536 [2024-11-10 01:12:01,734 INFO L226 Difference]: Without dead ends: 1941 [2024-11-10 01:12:01,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-10 01:12:01,736 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1719 mSDsluCounter, 6098 mSDsCounter, 0 mSdLazyCounter, 6622 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 6986 SdHoareTripleChecker+Invalid, 6626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:12:01,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 6986 Invalid, 6626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6622 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-10 01:12:01,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2024-11-10 01:12:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1941. [2024-11-10 01:12:01,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1929 states have (on average 1.465526179367548) internal successors, (2827), 1929 states have internal predecessors, (2827), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:12:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2847 transitions. [2024-11-10 01:12:01,771 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2847 transitions. Word has length 385 [2024-11-10 01:12:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:12:01,771 INFO L471 AbstractCegarLoop]: Abstraction has 1941 states and 2847 transitions. [2024-11-10 01:12:01,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:12:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2847 transitions. [2024-11-10 01:12:01,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-10 01:12:01,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:12:01,774 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:12:01,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-10 01:12:01,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-10 01:12:01,975 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:12:01,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:12:01,976 INFO L85 PathProgramCache]: Analyzing trace with hash -379580039, now seen corresponding path program 1 times [2024-11-10 01:12:01,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:12:01,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58960906] [2024-11-10 01:12:01,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:12:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-10 01:12:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-11-10 01:12:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-11-10 01:12:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-10 01:12:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-10 01:12:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-10 01:12:02,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:12:02,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58960906] [2024-11-10 01:12:02,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58960906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:12:02,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59140173] [2024-11-10 01:12:02,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:02,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:12:02,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:12:02,331 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:12:02,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-10 01:12:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-10 01:12:03,214 INFO L278 TraceCheckSpWp]: Computing forward predicates...