./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/list-simple/sll2n_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/sll2n_append_unequal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 742ffe63db70127807dbc7584eb0c51633a9ed1be5f19fa1a247e43392d52dab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 04:09:56,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 04:09:56,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 04:09:56,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 04:09:56,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 04:09:56,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 04:09:56,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 04:09:56,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 04:09:56,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 04:09:56,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 04:09:56,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 04:09:56,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 04:09:56,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 04:09:56,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 04:09:56,990 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 04:09:56,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 04:09:56,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 04:09:56,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 04:09:56,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 04:09:56,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 04:09:56,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 04:09:56,996 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 04:09:56,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 04:09:56,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 04:09:56,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 04:09:56,997 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 04:09:56,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 04:09:56,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:09:56,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 04:09:56,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 04:09:56,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 04:09:56,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 04:09:56,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 04:09:56,999 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 742ffe63db70127807dbc7584eb0c51633a9ed1be5f19fa1a247e43392d52dab [2024-11-17 04:09:57,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 04:09:57,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 04:09:57,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 04:09:57,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 04:09:57,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 04:09:57,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2n_append_unequal.i [2024-11-17 04:09:58,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 04:09:58,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 04:09:58,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_append_unequal.i [2024-11-17 04:09:58,792 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4ac3a6ea/c1f5982642c14dbe84e51a997f4e8dfd/FLAGae39550de [2024-11-17 04:09:59,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4ac3a6ea/c1f5982642c14dbe84e51a997f4e8dfd [2024-11-17 04:09:59,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 04:09:59,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 04:09:59,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 04:09:59,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 04:09:59,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 04:09:59,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69de2f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59, skipping insertion in model container [2024-11-17 04:09:59,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 04:09:59,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:09:59,444 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 04:09:59,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:09:59,512 INFO L204 MainTranslator]: Completed translation [2024-11-17 04:09:59,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59 WrapperNode [2024-11-17 04:09:59,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 04:09:59,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 04:09:59,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 04:09:59,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 04:09:59,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,580 INFO L138 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 143 [2024-11-17 04:09:59,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 04:09:59,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 04:09:59,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 04:09:59,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 04:09:59,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,593 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,615 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 12, 6]. 60 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 5 writes are split as follows [0, 4, 1]. [2024-11-17 04:09:59,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 04:09:59,653 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 04:09:59,653 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 04:09:59,653 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 04:09:59,657 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (1/1) ... [2024-11-17 04:09:59,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:09:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:09:59,705 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) [2024-11-17 04:09:59,717 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 [2024-11-17 04:09:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-17 04:09:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-17 04:09:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 04:09:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 04:09:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 04:09:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 04:09:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 04:09:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 04:09:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 04:09:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 04:09:59,889 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 04:09:59,891 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 04:10:00,061 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L614: call ULTIMATE.dealloc(main_~#s~0#1.base, main_~#s~0#1.offset);havoc main_~#s~0#1.base, main_~#s~0#1.offset; [2024-11-17 04:10:00,078 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint myexit_returnLabel#1: assume true;havoc myexit_~s#1;havoc myexit_#in~s#1;assume { :end_inline_myexit } true; [2024-11-17 04:10:00,098 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-17 04:10:00,098 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 04:10:00,108 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 04:10:00,108 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 04:10:00,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:10:00 BoogieIcfgContainer [2024-11-17 04:10:00,109 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 04:10:00,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 04:10:00,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 04:10:00,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 04:10:00,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:09:59" (1/3) ... [2024-11-17 04:10:00,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ecca7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:10:00, skipping insertion in model container [2024-11-17 04:10:00,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:09:59" (2/3) ... [2024-11-17 04:10:00,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ecca7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:10:00, skipping insertion in model container [2024-11-17 04:10:00,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:10:00" (3/3) ... [2024-11-17 04:10:00,115 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_append_unequal.i [2024-11-17 04:10:00,128 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 04:10:00,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 04:10:00,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 04:10:00,183 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;@4f6026b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 04:10:00,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 04:10:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 52 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-17 04:10:00,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:00,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:00,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:00,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash -466266247, now seen corresponding path program 1 times [2024-11-17 04:10:00,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:00,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530918519] [2024-11-17 04:10:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:00,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:00,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:10:00,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:00,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530918519] [2024-11-17 04:10:00,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530918519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:00,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:10:00,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:10:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937717742] [2024-11-17 04:10:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:00,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:00,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:00,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:00,555 INFO L87 Difference]: Start difference. First operand has 56 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 52 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 04:10:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:00,655 INFO L93 Difference]: Finished difference Result 109 states and 139 transitions. [2024-11-17 04:10:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:10:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-17 04:10:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:00,664 INFO L225 Difference]: With dead ends: 109 [2024-11-17 04:10:00,664 INFO L226 Difference]: Without dead ends: 52 [2024-11-17 04:10:00,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:00,670 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:00,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 211 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-17 04:10:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2024-11-17 04:10:00,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2024-11-17 04:10:00,702 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 12 [2024-11-17 04:10:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:00,704 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2024-11-17 04:10:00,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 04:10:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-11-17 04:10:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 04:10:00,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:00,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:00,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 04:10:00,707 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:00,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -862819568, now seen corresponding path program 1 times [2024-11-17 04:10:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384856875] [2024-11-17 04:10:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:00,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:00,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 04:10:00,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:00,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384856875] [2024-11-17 04:10:00,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384856875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:00,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:10:00,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:10:00,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909552168] [2024-11-17 04:10:00,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:00,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:00,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:00,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:00,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:00,884 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:00,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:00,941 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2024-11-17 04:10:00,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:10:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-17 04:10:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:00,945 INFO L225 Difference]: With dead ends: 51 [2024-11-17 04:10:00,945 INFO L226 Difference]: Without dead ends: 50 [2024-11-17 04:10:00,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:00,946 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:00,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 150 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:00,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-17 04:10:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-17 04:10:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 45 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-11-17 04:10:00,956 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 24 [2024-11-17 04:10:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:00,956 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-11-17 04:10:00,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-11-17 04:10:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-17 04:10:00,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:00,958 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 04:10:00,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 04:10:00,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:00,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -977602793, now seen corresponding path program 1 times [2024-11-17 04:10:00,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:00,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788484698] [2024-11-17 04:10:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:00,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:01,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:01,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788484698] [2024-11-17 04:10:01,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788484698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:01,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588754648] [2024-11-17 04:10:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:01,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:01,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:01,172 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) [2024-11-17 04:10:01,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 04:10:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 04:10:01,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:01,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:10:01,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588754648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:01,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:10:01,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-17 04:10:01,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84779941] [2024-11-17 04:10:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:01,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:10:01,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:10:01,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:10:01,391 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:01,428 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2024-11-17 04:10:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:10:01,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-17 04:10:01,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:01,429 INFO L225 Difference]: With dead ends: 51 [2024-11-17 04:10:01,429 INFO L226 Difference]: Without dead ends: 50 [2024-11-17 04:10:01,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:10:01,430 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:01,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 210 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-17 04:10:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-11-17 04:10:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 41 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2024-11-17 04:10:01,437 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 25 [2024-11-17 04:10:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:01,437 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2024-11-17 04:10:01,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2024-11-17 04:10:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 04:10:01,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:01,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:01,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 04:10:01,638 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 [2024-11-17 04:10:01,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:01,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1584960659, now seen corresponding path program 1 times [2024-11-17 04:10:01,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:01,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085884472] [2024-11-17 04:10:01,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:01,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-17 04:10:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:01,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:01,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085884472] [2024-11-17 04:10:01,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085884472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:01,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614291738] [2024-11-17 04:10:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:01,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:01,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:01,805 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) [2024-11-17 04:10:01,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 04:10:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:01,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 04:10:01,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 04:10:01,936 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:10:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614291738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:01,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:10:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-11-17 04:10:01,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589218465] [2024-11-17 04:10:01,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:01,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 04:10:01,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 04:10:01,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:10:01,938 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:01,943 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2024-11-17 04:10:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 04:10:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-11-17 04:10:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:01,944 INFO L225 Difference]: With dead ends: 45 [2024-11-17 04:10:01,944 INFO L226 Difference]: Without dead ends: 44 [2024-11-17 04:10:01,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:10:01,945 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:01,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:01,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-17 04:10:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-17 04:10:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.25) internal successors, (45), 40 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2024-11-17 04:10:01,949 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 29 [2024-11-17 04:10:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:01,949 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2024-11-17 04:10:01,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2024-11-17 04:10:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-17 04:10:01,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:01,950 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:01,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 04:10:02,150 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 [2024-11-17 04:10:02,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1889140163, now seen corresponding path program 1 times [2024-11-17 04:10:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909626910] [2024-11-17 04:10:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-17 04:10:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:02,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909626910] [2024-11-17 04:10:02,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909626910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:02,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813703858] [2024-11-17 04:10:02,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:02,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:02,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:02,239 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) [2024-11-17 04:10:02,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 04:10:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 04:10:02,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 04:10:02,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:10:02,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813703858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:02,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:10:02,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-11-17 04:10:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867174768] [2024-11-17 04:10:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:02,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 04:10:02,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 04:10:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:10:02,369 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:02,372 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-11-17 04:10:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 04:10:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-17 04:10:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:02,373 INFO L225 Difference]: With dead ends: 44 [2024-11-17 04:10:02,374 INFO L226 Difference]: Without dead ends: 40 [2024-11-17 04:10:02,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:10:02,374 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:02,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:02,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-17 04:10:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-17 04:10:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 36 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2024-11-17 04:10:02,378 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 30 [2024-11-17 04:10:02,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:02,379 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2024-11-17 04:10:02,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2024-11-17 04:10:02,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-17 04:10:02,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:02,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:02,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:02,580 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 [2024-11-17 04:10:02,581 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:02,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1307561379, now seen corresponding path program 1 times [2024-11-17 04:10:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:02,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528270442] [2024-11-17 04:10:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:02,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-17 04:10:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:02,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528270442] [2024-11-17 04:10:02,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528270442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:02,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051440391] [2024-11-17 04:10:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:02,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:02,682 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) [2024-11-17 04:10:02,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 04:10:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:02,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 04:10:02,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:10:02,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 04:10:02,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051440391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:02,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:02,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-17 04:10:02,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419299519] [2024-11-17 04:10:02,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:02,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 04:10:02,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 04:10:02,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:10:02,877 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 04:10:02,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:02,924 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2024-11-17 04:10:02,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:10:02,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2024-11-17 04:10:02,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:02,926 INFO L225 Difference]: With dead ends: 76 [2024-11-17 04:10:02,926 INFO L226 Difference]: Without dead ends: 47 [2024-11-17 04:10:02,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:10:02,927 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:02,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 193 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-17 04:10:02,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-17 04:10:02,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2024-11-17 04:10:02,932 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 32 [2024-11-17 04:10:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:02,932 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2024-11-17 04:10:02,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 04:10:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2024-11-17 04:10:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-17 04:10:02,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:02,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:02,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:03,134 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 [2024-11-17 04:10:03,134 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:03,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:03,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1839295372, now seen corresponding path program 2 times [2024-11-17 04:10:03,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:03,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348460486] [2024-11-17 04:10:03,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:03,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:03,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:03,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348460486] [2024-11-17 04:10:03,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348460486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:03,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:10:03,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:10:03,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432419712] [2024-11-17 04:10:03,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:03,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:03,251 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:03,292 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-17 04:10:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:10:03,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-17 04:10:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:03,293 INFO L225 Difference]: With dead ends: 57 [2024-11-17 04:10:03,294 INFO L226 Difference]: Without dead ends: 55 [2024-11-17 04:10:03,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:03,294 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:03,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 125 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-17 04:10:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2024-11-17 04:10:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 47 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2024-11-17 04:10:03,304 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 44 [2024-11-17 04:10:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:03,304 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2024-11-17 04:10:03,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-11-17 04:10:03,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-17 04:10:03,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:03,305 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:03,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 04:10:03,306 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:03,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:03,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1183651034, now seen corresponding path program 1 times [2024-11-17 04:10:03,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968106351] [2024-11-17 04:10:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:03,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968106351] [2024-11-17 04:10:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968106351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:10:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:10:03,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38763569] [2024-11-17 04:10:03,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:03,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:03,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:03,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:03,384 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:03,415 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2024-11-17 04:10:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:10:03,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-17 04:10:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:03,416 INFO L225 Difference]: With dead ends: 58 [2024-11-17 04:10:03,416 INFO L226 Difference]: Without dead ends: 52 [2024-11-17 04:10:03,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:10:03,417 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:03,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-17 04:10:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-17 04:10:03,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 47 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2024-11-17 04:10:03,421 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 45 [2024-11-17 04:10:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:03,421 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2024-11-17 04:10:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2024-11-17 04:10:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-17 04:10:03,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:03,423 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:03,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 04:10:03,423 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:03,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -251732212, now seen corresponding path program 1 times [2024-11-17 04:10:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:03,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209744739] [2024-11-17 04:10:03,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:03,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:03,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209744739] [2024-11-17 04:10:03,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209744739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:03,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139197752] [2024-11-17 04:10:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:03,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:03,525 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) [2024-11-17 04:10:03,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 04:10:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:03,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 04:10:03,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:03,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:10:03,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139197752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:03,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:10:03,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-17 04:10:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610370513] [2024-11-17 04:10:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:03,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:03,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:10:03,724 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:03,739 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2024-11-17 04:10:03,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 04:10:03,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-11-17 04:10:03,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:03,740 INFO L225 Difference]: With dead ends: 52 [2024-11-17 04:10:03,740 INFO L226 Difference]: Without dead ends: 51 [2024-11-17 04:10:03,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:10:03,741 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 5 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:03,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 131 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-17 04:10:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-17 04:10:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-17 04:10:03,748 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 50 [2024-11-17 04:10:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:03,749 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-17 04:10:03,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-17 04:10:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-17 04:10:03,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:03,752 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:03,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 04:10:03,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:03,953 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:03,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash 786236026, now seen corresponding path program 1 times [2024-11-17 04:10:03,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:03,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033765487] [2024-11-17 04:10:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:04,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033765487] [2024-11-17 04:10:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033765487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007475238] [2024-11-17 04:10:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:04,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:04,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:04,045 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) [2024-11-17 04:10:04,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 04:10:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 04:10:04,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:04,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:04,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007475238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:04,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:04,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-17 04:10:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413776295] [2024-11-17 04:10:04,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:04,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 04:10:04,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 04:10:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-17 04:10:04,249 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:04,297 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2024-11-17 04:10:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 04:10:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2024-11-17 04:10:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:04,298 INFO L225 Difference]: With dead ends: 76 [2024-11-17 04:10:04,298 INFO L226 Difference]: Without dead ends: 75 [2024-11-17 04:10:04,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-17 04:10:04,299 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 10 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:04,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 227 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-17 04:10:04,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2024-11-17 04:10:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 64 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2024-11-17 04:10:04,305 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 51 [2024-11-17 04:10:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:04,305 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2024-11-17 04:10:04,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2024-11-17 04:10:04,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-17 04:10:04,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:04,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:04,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 04:10:04,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:04,507 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:04,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash 786166670, now seen corresponding path program 1 times [2024-11-17 04:10:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419344413] [2024-11-17 04:10:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:04,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:04,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419344413] [2024-11-17 04:10:04,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419344413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:04,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218565998] [2024-11-17 04:10:04,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:04,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:04,597 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) [2024-11-17 04:10:04,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 04:10:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:04,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 04:10:04,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:04,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:10:04,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218565998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:04,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:10:04,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-17 04:10:04,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689346552] [2024-11-17 04:10:04,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:04,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:10:04,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:04,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:10:04,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:10:04,760 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:04,787 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2024-11-17 04:10:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:10:04,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2024-11-17 04:10:04,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:04,788 INFO L225 Difference]: With dead ends: 69 [2024-11-17 04:10:04,788 INFO L226 Difference]: Without dead ends: 68 [2024-11-17 04:10:04,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:10:04,789 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:04,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 119 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:04,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-17 04:10:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-17 04:10:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.1290322580645162) internal successors, (70), 63 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:04,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-17 04:10:04,797 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 51 [2024-11-17 04:10:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:04,797 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-17 04:10:04,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-17 04:10:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-17 04:10:04,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:04,798 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:04,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 04:10:04,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:04,999 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:05,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:05,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1398637011, now seen corresponding path program 1 times [2024-11-17 04:10:05,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:05,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439002793] [2024-11-17 04:10:05,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:05,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:05,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:05,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439002793] [2024-11-17 04:10:05,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439002793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:05,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080250377] [2024-11-17 04:10:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:05,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:05,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:05,109 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) [2024-11-17 04:10:05,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 04:10:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 04:10:05,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:05,281 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:05,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:05,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080250377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:05,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-17 04:10:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523887325] [2024-11-17 04:10:05,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:05,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 04:10:05,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:05,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 04:10:05,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-17 04:10:05,330 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:05,380 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2024-11-17 04:10:05,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 04:10:05,380 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2024-11-17 04:10:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:05,381 INFO L225 Difference]: With dead ends: 77 [2024-11-17 04:10:05,381 INFO L226 Difference]: Without dead ends: 68 [2024-11-17 04:10:05,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-17 04:10:05,381 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:05,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 275 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:10:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-17 04:10:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-17 04:10:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.096774193548387) internal successors, (68), 63 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2024-11-17 04:10:05,385 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 52 [2024-11-17 04:10:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:05,385 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2024-11-17 04:10:05,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2024-11-17 04:10:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 04:10:05,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:05,386 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:05,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:05,586 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,SelfDestructingSolverStorable11 [2024-11-17 04:10:05,587 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:05,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1234735453, now seen corresponding path program 2 times [2024-11-17 04:10:05,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:05,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936483335] [2024-11-17 04:10:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:05,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:05,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-17 04:10:06,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:06,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936483335] [2024-11-17 04:10:06,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936483335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:10:06,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:10:06,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-17 04:10:06,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860337803] [2024-11-17 04:10:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:10:06,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 04:10:06,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 04:10:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-17 04:10:06,035 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:06,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:06,171 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2024-11-17 04:10:06,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 04:10:06,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-11-17 04:10:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:06,172 INFO L225 Difference]: With dead ends: 105 [2024-11-17 04:10:06,172 INFO L226 Difference]: Without dead ends: 68 [2024-11-17 04:10:06,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-17 04:10:06,173 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 31 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:06,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 256 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-17 04:10:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-17 04:10:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.0806451612903225) internal successors, (67), 63 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2024-11-17 04:10:06,177 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 64 [2024-11-17 04:10:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:06,177 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2024-11-17 04:10:06,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:10:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2024-11-17 04:10:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-17 04:10:06,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:06,178 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:06,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 04:10:06,178 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:06,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:06,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1077667145, now seen corresponding path program 1 times [2024-11-17 04:10:06,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:06,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394194907] [2024-11-17 04:10:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:06,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:06,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:06,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394194907] [2024-11-17 04:10:06,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394194907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:06,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234937472] [2024-11-17 04:10:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:06,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:06,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:06,355 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) [2024-11-17 04:10:06,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 04:10:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:06,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 04:10:06,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:06,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234937472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:06,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:06,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2024-11-17 04:10:06,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242475551] [2024-11-17 04:10:06,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:06,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 04:10:06,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 04:10:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-17 04:10:06,728 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 21 states, 20 states have (on average 4.05) internal successors, (81), 20 states have internal predecessors, (81), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:06,818 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2024-11-17 04:10:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 04:10:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.05) internal successors, (81), 20 states have internal predecessors, (81), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2024-11-17 04:10:06,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:06,819 INFO L225 Difference]: With dead ends: 98 [2024-11-17 04:10:06,819 INFO L226 Difference]: Without dead ends: 84 [2024-11-17 04:10:06,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-17 04:10:06,820 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:06,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 255 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:06,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-17 04:10:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2024-11-17 04:10:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.051948051948052) internal successors, (81), 78 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2024-11-17 04:10:06,825 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 67 [2024-11-17 04:10:06,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:06,825 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2024-11-17 04:10:06,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.05) internal successors, (81), 20 states have internal predecessors, (81), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2024-11-17 04:10:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-17 04:10:06,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:06,826 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:06,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 04:10:07,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-17 04:10:07,031 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:07,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash -82030488, now seen corresponding path program 1 times [2024-11-17 04:10:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:07,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010252829] [2024-11-17 04:10:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:07,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:07,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:07,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:07,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010252829] [2024-11-17 04:10:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010252829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311970320] [2024-11-17 04:10:07,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:07,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:07,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:07,295 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) [2024-11-17 04:10:07,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 04:10:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:07,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-17 04:10:07,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:07,627 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:07,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311970320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:07,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:07,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2024-11-17 04:10:07,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376106449] [2024-11-17 04:10:07,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:07,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-17 04:10:07,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-17 04:10:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-11-17 04:10:07,849 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 33 states, 32 states have (on average 3.59375) internal successors, (115), 32 states have internal predecessors, (115), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:07,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:07,950 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2024-11-17 04:10:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-17 04:10:07,950 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.59375) internal successors, (115), 32 states have internal predecessors, (115), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-17 04:10:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:07,951 INFO L225 Difference]: With dead ends: 143 [2024-11-17 04:10:07,951 INFO L226 Difference]: Without dead ends: 142 [2024-11-17 04:10:07,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-11-17 04:10:07,952 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 36 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:07,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 187 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-17 04:10:07,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2024-11-17 04:10:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 122 states have (on average 1.0901639344262295) internal successors, (133), 123 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2024-11-17 04:10:07,959 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 84 [2024-11-17 04:10:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:07,960 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2024-11-17 04:10:07,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.59375) internal successors, (115), 32 states have internal predecessors, (115), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2024-11-17 04:10:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 04:10:07,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:07,964 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:07,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-17 04:10:08,165 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,SelfDestructingSolverStorable14 [2024-11-17 04:10:08,165 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:08,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1219656471, now seen corresponding path program 2 times [2024-11-17 04:10:08,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:08,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694605766] [2024-11-17 04:10:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:08,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:08,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:08,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:08,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:08,423 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:08,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694605766] [2024-11-17 04:10:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694605766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271186564] [2024-11-17 04:10:08,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:10:08,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:08,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:08,425 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) [2024-11-17 04:10:08,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 04:10:08,609 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:10:08,610 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:10:08,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-17 04:10:08,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:08,674 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:08,674 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:08,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271186564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:08,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2024-11-17 04:10:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619232519] [2024-11-17 04:10:08,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:08,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-17 04:10:08,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-17 04:10:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2024-11-17 04:10:08,947 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand has 37 states, 36 states have (on average 3.5833333333333335) internal successors, (129), 36 states have internal predecessors, (129), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:09,043 INFO L93 Difference]: Finished difference Result 153 states and 164 transitions. [2024-11-17 04:10:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-17 04:10:09,043 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.5833333333333335) internal successors, (129), 36 states have internal predecessors, (129), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2024-11-17 04:10:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:09,044 INFO L225 Difference]: With dead ends: 153 [2024-11-17 04:10:09,044 INFO L226 Difference]: Without dead ends: 132 [2024-11-17 04:10:09,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2024-11-17 04:10:09,045 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:09,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 337 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-17 04:10:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2024-11-17 04:10:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 125 states have (on average 1.032) internal successors, (129), 126 states have internal predecessors, (129), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:09,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2024-11-17 04:10:09,049 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 91 [2024-11-17 04:10:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:09,049 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2024-11-17 04:10:09,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.5833333333333335) internal successors, (129), 36 states have internal predecessors, (129), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2024-11-17 04:10:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-17 04:10:09,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:09,050 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:09,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:09,254 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,SelfDestructingSolverStorable15 [2024-11-17 04:10:09,255 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:09,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:09,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1407170648, now seen corresponding path program 2 times [2024-11-17 04:10:09,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:09,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159747925] [2024-11-17 04:10:09,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:09,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:09,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:09,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:09,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:09,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:09,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159747925] [2024-11-17 04:10:09,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159747925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:09,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944341890] [2024-11-17 04:10:09,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:10:09,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:09,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:09,906 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) [2024-11-17 04:10:09,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-17 04:10:10,123 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:10:10,123 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:10:10,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-17 04:10:10,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:10,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944341890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:11,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2024-11-17 04:10:11,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979008203] [2024-11-17 04:10:11,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:11,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-17 04:10:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:11,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-17 04:10:11,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2024-11-17 04:10:11,037 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand has 65 states, 64 states have (on average 3.296875) internal successors, (211), 64 states have internal predecessors, (211), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:11,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:11,189 INFO L93 Difference]: Finished difference Result 255 states and 289 transitions. [2024-11-17 04:10:11,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-17 04:10:11,190 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.296875) internal successors, (211), 64 states have internal predecessors, (211), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 132 [2024-11-17 04:10:11,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:11,191 INFO L225 Difference]: With dead ends: 255 [2024-11-17 04:10:11,191 INFO L226 Difference]: Without dead ends: 254 [2024-11-17 04:10:11,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1267 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2024-11-17 04:10:11,193 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 78 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:11,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 386 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-17 04:10:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 224. [2024-11-17 04:10:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 218 states have (on average 1.0871559633027523) internal successors, (237), 219 states have internal predecessors, (237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 243 transitions. [2024-11-17 04:10:11,198 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 243 transitions. Word has length 132 [2024-11-17 04:10:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:11,199 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 243 transitions. [2024-11-17 04:10:11,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.296875) internal successors, (211), 64 states have internal predecessors, (211), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 243 transitions. [2024-11-17 04:10:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-17 04:10:11,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:11,205 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:11,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:11,405 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,SelfDestructingSolverStorable16 [2024-11-17 04:10:11,406 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:11,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 954588119, now seen corresponding path program 3 times [2024-11-17 04:10:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48441402] [2024-11-17 04:10:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:12,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:12,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 04:10:12,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48441402] [2024-11-17 04:10:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48441402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803355386] [2024-11-17 04:10:12,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 04:10:12,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:12,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:12,412 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) [2024-11-17 04:10:12,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 04:10:12,627 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-17 04:10:12,628 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:10:12,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-17 04:10:12,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:12,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 04:10:13,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 04:10:13,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2024-11-17 04:10:13,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 04:10:13,431 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|v_node_create_~temp~0#1.base_67| Int)) (and (= |c_#memory_$Pointer$#1.base| (store |c_old(#memory_$Pointer$#1.base)| |v_node_create_~temp~0#1.base_67| (select |c_#memory_$Pointer$#1.base| |v_node_create_~temp~0#1.base_67|))) (= (select |c_old(#valid)| |v_node_create_~temp~0#1.base_67|) 0))) (exists ((|v_ULTIMATE.start_sll_append_~head#1.base_BEFORE_CALL_1| Int)) (= (select (select |c_#memory_$Pointer$#2.offset| |v_ULTIMATE.start_sll_append_~head#1.base_BEFORE_CALL_1|) 0) 0))) is different from true [2024-11-17 04:10:13,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:10:13,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2024-11-17 04:10:13,525 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-17 04:10:13,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-11-17 04:10:13,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-17 04:10:13,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-17 04:10:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 661 trivial. 4 not checked. [2024-11-17 04:10:13,918 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803355386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:14,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 04:10:14,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 19] total 52 [2024-11-17 04:10:14,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707294227] [2024-11-17 04:10:14,193 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:14,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-17 04:10:14,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:14,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-17 04:10:14,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2622, Unknown=2, NotChecked=106, Total=3080 [2024-11-17 04:10:14,196 INFO L87 Difference]: Start difference. First operand 224 states and 243 transitions. Second operand has 52 states, 51 states have (on average 3.235294117647059) internal successors, (165), 48 states have internal predecessors, (165), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-17 04:10:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:15,991 INFO L93 Difference]: Finished difference Result 430 states and 465 transitions. [2024-11-17 04:10:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-17 04:10:15,991 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 3.235294117647059) internal successors, (165), 48 states have internal predecessors, (165), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 139 [2024-11-17 04:10:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:15,993 INFO L225 Difference]: With dead ends: 430 [2024-11-17 04:10:15,993 INFO L226 Difference]: Without dead ends: 232 [2024-11-17 04:10:16,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=969, Invalid=7963, Unknown=2, NotChecked=186, Total=9120 [2024-11-17 04:10:16,001 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 120 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:16,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 631 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 152 Unchecked, 0.5s Time] [2024-11-17 04:10:16,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-17 04:10:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2024-11-17 04:10:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 224 states have (on average 1.0803571428571428) internal successors, (242), 225 states have internal predecessors, (242), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2024-11-17 04:10:16,016 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 139 [2024-11-17 04:10:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:16,016 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2024-11-17 04:10:16,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 3.235294117647059) internal successors, (165), 48 states have internal predecessors, (165), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-17 04:10:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2024-11-17 04:10:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-17 04:10:16,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:16,018 INFO L215 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:16,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-17 04:10:16,218 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,SelfDestructingSolverStorable17 [2024-11-17 04:10:16,218 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:16,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:16,219 INFO L85 PathProgramCache]: Analyzing trace with hash -248312048, now seen corresponding path program 1 times [2024-11-17 04:10:16,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:16,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736305328] [2024-11-17 04:10:16,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:16,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:16,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:16,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:16,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:16,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736305328] [2024-11-17 04:10:16,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736305328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:16,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649839670] [2024-11-17 04:10:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:16,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:16,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:16,974 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) [2024-11-17 04:10:16,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 04:10:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:17,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-17 04:10:17,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:17,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:18,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649839670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:18,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:18,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35, 35] total 72 [2024-11-17 04:10:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826675299] [2024-11-17 04:10:18,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:18,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-17 04:10:18,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:18,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-17 04:10:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1267, Invalid=3989, Unknown=0, NotChecked=0, Total=5256 [2024-11-17 04:10:18,292 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand has 73 states, 72 states have (on average 3.3055555555555554) internal successors, (238), 72 states have internal predecessors, (238), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:18,474 INFO L93 Difference]: Finished difference Result 287 states and 307 transitions. [2024-11-17 04:10:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-17 04:10:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 3.3055555555555554) internal successors, (238), 72 states have internal predecessors, (238), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 147 [2024-11-17 04:10:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:18,476 INFO L225 Difference]: With dead ends: 287 [2024-11-17 04:10:18,476 INFO L226 Difference]: Without dead ends: 247 [2024-11-17 04:10:18,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1267, Invalid=3989, Unknown=0, NotChecked=0, Total=5256 [2024-11-17 04:10:18,478 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 90 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:18,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 331 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:10:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-17 04:10:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 246. [2024-11-17 04:10:18,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 239 states have (on average 1.0167364016736402) internal successors, (243), 240 states have internal predecessors, (243), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 249 transitions. [2024-11-17 04:10:18,488 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 249 transitions. Word has length 147 [2024-11-17 04:10:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:18,488 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 249 transitions. [2024-11-17 04:10:18,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 3.3055555555555554) internal successors, (238), 72 states have internal predecessors, (238), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 249 transitions. [2024-11-17 04:10:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-17 04:10:18,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:18,491 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 32, 32, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:18,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:18,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:18,696 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:18,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:18,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2128397239, now seen corresponding path program 1 times [2024-11-17 04:10:18,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:18,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408162141] [2024-11-17 04:10:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:18,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:21,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:21,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:21,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408162141] [2024-11-17 04:10:21,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408162141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:21,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203529422] [2024-11-17 04:10:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:21,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:21,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:21,218 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) [2024-11-17 04:10:21,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-17 04:10:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:21,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-17 04:10:21,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:21,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203529422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:24,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:24,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 67, 67] total 136 [2024-11-17 04:10:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130743179] [2024-11-17 04:10:24,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:24,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2024-11-17 04:10:24,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:24,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2024-11-17 04:10:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4693, Invalid=13939, Unknown=0, NotChecked=0, Total=18632 [2024-11-17 04:10:24,734 INFO L87 Difference]: Start difference. First operand 246 states and 249 transitions. Second operand has 137 states, 136 states have (on average 3.1470588235294117) internal successors, (428), 136 states have internal predecessors, (428), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:25,209 INFO L93 Difference]: Finished difference Result 514 states and 583 transitions. [2024-11-17 04:10:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-11-17 04:10:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 3.1470588235294117) internal successors, (428), 136 states have internal predecessors, (428), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 242 [2024-11-17 04:10:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:25,215 INFO L225 Difference]: With dead ends: 514 [2024-11-17 04:10:25,215 INFO L226 Difference]: Without dead ends: 513 [2024-11-17 04:10:25,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5767 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4693, Invalid=13939, Unknown=0, NotChecked=0, Total=18632 [2024-11-17 04:10:25,222 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 172 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:25,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 568 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:10:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-17 04:10:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 447. [2024-11-17 04:10:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 440 states have (on average 1.084090909090909) internal successors, (477), 441 states have internal predecessors, (477), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 483 transitions. [2024-11-17 04:10:25,255 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 483 transitions. Word has length 242 [2024-11-17 04:10:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:25,255 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 483 transitions. [2024-11-17 04:10:25,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 3.1470588235294117) internal successors, (428), 136 states have internal predecessors, (428), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 483 transitions. [2024-11-17 04:10:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-17 04:10:25,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:25,261 INFO L215 NwaCegarLoop]: trace histogram [34, 33, 33, 33, 33, 33, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:25,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-17 04:10:25,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:25,462 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:25,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1117225192, now seen corresponding path program 2 times [2024-11-17 04:10:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:25,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972572451] [2024-11-17 04:10:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:25,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:27,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:27,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3262 backedges. 0 proven. 3234 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:27,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:27,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972572451] [2024-11-17 04:10:27,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972572451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:27,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18900141] [2024-11-17 04:10:27,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:10:27,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:27,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:27,717 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) [2024-11-17 04:10:27,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-17 04:10:28,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:10:28,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:10:28,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-17 04:10:28,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3262 backedges. 0 proven. 3234 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:28,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3262 backedges. 0 proven. 3234 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18900141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:31,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 69, 69] total 140 [2024-11-17 04:10:31,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882930034] [2024-11-17 04:10:31,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:31,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2024-11-17 04:10:31,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2024-11-17 04:10:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4837, Invalid=14903, Unknown=0, NotChecked=0, Total=19740 [2024-11-17 04:10:31,678 INFO L87 Difference]: Start difference. First operand 447 states and 483 transitions. Second operand has 141 states, 140 states have (on average 3.157142857142857) internal successors, (442), 140 states have internal predecessors, (442), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:32,013 INFO L93 Difference]: Finished difference Result 524 states and 560 transitions. [2024-11-17 04:10:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2024-11-17 04:10:32,014 INFO L78 Accepts]: Start accepts. Automaton has has 141 states, 140 states have (on average 3.157142857142857) internal successors, (442), 140 states have internal predecessors, (442), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 249 [2024-11-17 04:10:32,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:32,015 INFO L225 Difference]: With dead ends: 524 [2024-11-17 04:10:32,016 INFO L226 Difference]: Without dead ends: 451 [2024-11-17 04:10:32,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6138 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4837, Invalid=14903, Unknown=0, NotChecked=0, Total=19740 [2024-11-17 04:10:32,019 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 238 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:32,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 485 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:10:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-17 04:10:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2024-11-17 04:10:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 443 states have (on average 1.0090293453724606) internal successors, (447), 444 states have internal predecessors, (447), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 453 transitions. [2024-11-17 04:10:32,051 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 453 transitions. Word has length 249 [2024-11-17 04:10:32,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:32,051 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 453 transitions. [2024-11-17 04:10:32,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 140 states have (on average 3.157142857142857) internal successors, (442), 140 states have internal predecessors, (442), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 453 transitions. [2024-11-17 04:10:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-17 04:10:32,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:32,055 INFO L215 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 66, 66, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:32,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-17 04:10:32,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:32,259 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:32,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1380715527, now seen corresponding path program 2 times [2024-11-17 04:10:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:32,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759385937] [2024-11-17 04:10:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:39,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:10:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:39,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:10:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:39,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:10:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:10:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 13228 backedges. 0 proven. 13200 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:39,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:10:39,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759385937] [2024-11-17 04:10:39,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759385937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:10:39,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408685715] [2024-11-17 04:10:39,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:10:39,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:39,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:10:39,760 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) [2024-11-17 04:10:39,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-17 04:10:40,165 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:10:40,166 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:10:40,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-17 04:10:40,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:10:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 13228 backedges. 0 proven. 13200 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:40,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:10:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13228 backedges. 0 proven. 13200 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:10:52,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408685715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:10:52,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:10:52,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [136, 135, 135] total 272 [2024-11-17 04:10:52,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114133371] [2024-11-17 04:10:52,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:10:52,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 273 states [2024-11-17 04:10:52,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:10:52,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 273 interpolants. [2024-11-17 04:10:52,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18633, Invalid=55623, Unknown=0, NotChecked=0, Total=74256 [2024-11-17 04:10:52,049 INFO L87 Difference]: Start difference. First operand 450 states and 453 transitions. Second operand has 273 states, 272 states have (on average 3.073529411764706) internal successors, (836), 272 states have internal predecessors, (836), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:53,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:10:53,656 INFO L93 Difference]: Finished difference Result 990 states and 1127 transitions. [2024-11-17 04:10:53,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2024-11-17 04:10:53,658 INFO L78 Accepts]: Start accepts. Automaton has has 273 states, 272 states have (on average 3.073529411764706) internal successors, (836), 272 states have internal predecessors, (836), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 446 [2024-11-17 04:10:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:10:53,661 INFO L225 Difference]: With dead ends: 990 [2024-11-17 04:10:53,662 INFO L226 Difference]: Without dead ends: 989 [2024-11-17 04:10:53,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1031 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23107 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=18633, Invalid=55623, Unknown=0, NotChecked=0, Total=74256 [2024-11-17 04:10:53,665 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 632 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 04:10:53,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 665 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 04:10:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-11-17 04:10:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 855. [2024-11-17 04:10:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 848 states have (on average 1.0837264150943395) internal successors, (919), 849 states have internal predecessors, (919), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:10:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 925 transitions. [2024-11-17 04:10:53,686 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 925 transitions. Word has length 446 [2024-11-17 04:10:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:10:53,686 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 925 transitions. [2024-11-17 04:10:53,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 273 states, 272 states have (on average 3.073529411764706) internal successors, (836), 272 states have internal predecessors, (836), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:10:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 925 transitions. [2024-11-17 04:10:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-17 04:10:53,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:10:53,691 INFO L215 NwaCegarLoop]: trace histogram [68, 67, 67, 67, 67, 67, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:10:53,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-17 04:10:53,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:10:53,892 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 04:10:53,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:10:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1329938072, now seen corresponding path program 3 times [2024-11-17 04:10:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:10:53,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873904103] [2024-11-17 04:10:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:10:53,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:10:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:11:01,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-17 04:11:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:11:01,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-17 04:11:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:11:01,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-17 04:11:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:11:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13428 backedges. 0 proven. 13400 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:11:01,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:11:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873904103] [2024-11-17 04:11:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873904103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:11:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836114039] [2024-11-17 04:11:01,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 04:11:01,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:11:01,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:11:01,240 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:11:01,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-17 04:11:02,004 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-17 04:11:02,004 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:11:02,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 156 conjuncts are in the unsatisfiable core [2024-11-17 04:11:02,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:11:02,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 04:11:02,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 04:11:02,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 04:11:02,746 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-17 04:11:02,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-17 04:11:02,769 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-17 04:11:02,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-17 04:11:02,789 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-17 04:11:02,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-17 04:11:02,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-17 04:11:02,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-17 04:11:03,397 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-17 04:11:03,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2024-11-17 04:11:03,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-17 04:11:03,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-17 04:11:03,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 04:11:03,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:03,776 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-17 04:11:03,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 48 [2024-11-17 04:11:03,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:03,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:03,790 INFO L349 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2024-11-17 04:11:03,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 40 [2024-11-17 04:11:03,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:03,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:03,805 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-11-17 04:11:03,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2024-11-17 04:11:04,622 INFO L349 Elim1Store]: treesize reduction 188, result has 22.3 percent of original size [2024-11-17 04:11:04,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 102 treesize of output 87 [2024-11-17 04:11:04,638 INFO L349 Elim1Store]: treesize reduction 25, result has 45.7 percent of original size [2024-11-17 04:11:04,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 27 [2024-11-17 04:11:04,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 04:11:04,670 INFO L349 Elim1Store]: treesize reduction 180, result has 18.2 percent of original size [2024-11-17 04:11:04,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 61 [2024-11-17 04:11:05,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 227 [2024-11-17 04:11:11,175 INFO L349 Elim1Store]: treesize reduction 16, result has 69.8 percent of original size [2024-11-17 04:11:11,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 357 treesize of output 367 [2024-11-17 04:11:12,241 INFO L349 Elim1Store]: treesize reduction 64, result has 81.7 percent of original size [2024-11-17 04:11:12,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 201 treesize of output 381 [2024-11-17 04:11:12,363 INFO L349 Elim1Store]: treesize reduction 56, result has 66.9 percent of original size [2024-11-17 04:11:12,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 173 [2024-11-17 04:11:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 13428 backedges. 914 proven. 33 refuted. 0 times theorem prover too weak. 12481 trivial. 0 not checked. [2024-11-17 04:11:20,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:11:24,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 04:11:24,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1777 treesize of output 1754 [2024-11-17 04:11:25,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 04:11:25,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2261 treesize of output 3191 [2024-11-17 04:11:25,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2545 treesize of output 2497 [2024-11-17 04:11:25,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2497 treesize of output 2449 [2024-11-17 04:11:25,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2449 treesize of output 2401 [2024-11-17 04:11:25,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2401 treesize of output 2353