./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-wip.fs.cvc5-61a6796-m [2024-10-14 20:23:39,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:23:39,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:23:39,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:23:39,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:23:39,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:23:39,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:23:39,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:23:39,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:23:39,117 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:23:39,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:23:39,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:23:39,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:23:39,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:23:39,121 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:23:39,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:23:39,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:23:39,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:23:39,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:23:39,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:23:39,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:23:39,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:23:39,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:23:39,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:23:39,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:23:39,128 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:23:39,128 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:23:39,128 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:23:39,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:23:39,129 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:23:39,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:23:39,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:23:39,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:23:39,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:23:39,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:23:39,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:23:39,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:23:39,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:23:39,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:23:39,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:23:39,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:23:39,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:23:39,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:23:39,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:23:39,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 742ffe63db70127807dbc7584eb0c51633a9ed1be5f19fa1a247e43392d52dab [2024-10-14 20:23:39,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:23:39,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:23:39,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:23:39,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:23:39,405 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:23:39,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_append_unequal.i [2024-10-14 20:23:40,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:23:41,044 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:23:41,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_append_unequal.i [2024-10-14 20:23:41,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85d4bf22/d70b041873284b6b9c438f50c7f43dd5/FLAGa231e55a8 [2024-10-14 20:23:41,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85d4bf22/d70b041873284b6b9c438f50c7f43dd5 [2024-10-14 20:23:41,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:23:41,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:23:41,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:23:41,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:23:41,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:23:41,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bdf38b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41, skipping insertion in model container [2024-10-14 20:23:41,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:23:41,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:23:41,464 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:23:41,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:23:41,539 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:23:41,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41 WrapperNode [2024-10-14 20:23:41,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:23:41,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:23:41,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:23:41,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:23:41,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,583 INFO L138 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 147 [2024-10-14 20:23:41,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:23:41,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:23:41,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:23:41,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:23:41,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,598 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,616 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 6, 12]. 60 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 5 writes are split as follows [0, 1, 4]. [2024-10-14 20:23:41,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:23:41,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:23:41,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:23:41,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:23:41,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (1/1) ... [2024-10-14 20:23:41,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:23:41,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:41,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:23:41,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:23:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 20:23:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 20:23:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 20:23:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 20:23:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 20:23:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 20:23:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-10-14 20:23:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-10-14 20:23:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 20:23:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 20:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:23:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:23:41,896 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:23:41,898 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:23:42,121 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-10-14 20:23:42,123 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:23:42,167 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:23:42,167 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-14 20:23:42,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:23:42 BoogieIcfgContainer [2024-10-14 20:23:42,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:23:42,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:23:42,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:23:42,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:23:42,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:23:41" (1/3) ... [2024-10-14 20:23:42,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e812c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:23:42, skipping insertion in model container [2024-10-14 20:23:42,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:23:41" (2/3) ... [2024-10-14 20:23:42,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e812c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:23:42, skipping insertion in model container [2024-10-14 20:23:42,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:23:42" (3/3) ... [2024-10-14 20:23:42,178 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_append_unequal.i [2024-10-14 20:23:42,195 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:23:42,196 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-14 20:23:42,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:23:42,268 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;@6bd1a7fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:23:42,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 20:23:42,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 42 states have internal predecessors, (57), 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) [2024-10-14 20:23:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:23:42,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:42,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:42,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:42,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash 590038198, now seen corresponding path program 1 times [2024-10-14 20:23:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:42,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123000366] [2024-10-14 20:23:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:42,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:42,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:23:42,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:42,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123000366] [2024-10-14 20:23:42,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123000366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:42,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:23:42,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:23:42,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313048911] [2024-10-14 20:23:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:42,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:23:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:23:42,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:23:42,715 INFO L87 Difference]: Start difference. First operand has 46 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 42 states have internal predecessors, (57), 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 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-10-14 20:23:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:42,815 INFO L93 Difference]: Finished difference Result 90 states and 120 transitions. [2024-10-14 20:23:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:23:42,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2024-10-14 20:23:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:42,824 INFO L225 Difference]: With dead ends: 90 [2024-10-14 20:23:42,825 INFO L226 Difference]: Without dead ends: 42 [2024-10-14 20:23:42,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:23:42,834 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:42,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 166 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:42,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-14 20:23:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-10-14 20:23:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 37 states have internal predecessors, (42), 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) [2024-10-14 20:23:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-10-14 20:23:42,865 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 8 [2024-10-14 20:23:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:42,866 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-14 20:23:42,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-10-14 20:23:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-10-14 20:23:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 20:23:42,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:42,868 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:23:42,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:23:42,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:42,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash 936220611, now seen corresponding path program 1 times [2024-10-14 20:23:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:42,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882494855] [2024-10-14 20:23:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:23:43,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:43,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882494855] [2024-10-14 20:23:43,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882494855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:43,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:23:43,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:23:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494608765] [2024-10-14 20:23:43,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:43,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:23:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:43,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:23:43,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:23:43,053 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-14 20:23:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:43,118 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2024-10-14 20:23:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:23:43,120 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), 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 16 [2024-10-14 20:23:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:43,121 INFO L225 Difference]: With dead ends: 42 [2024-10-14 20:23:43,121 INFO L226 Difference]: Without dead ends: 41 [2024-10-14 20:23:43,122 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 [2024-10-14 20:23:43,123 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:43,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:43,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-14 20:23:43,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-14 20:23:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 36 states have internal predecessors, (41), 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) [2024-10-14 20:23:43,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-10-14 20:23:43,135 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16 [2024-10-14 20:23:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:43,136 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-10-14 20:23:43,136 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), 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) [2024-10-14 20:23:43,136 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-10-14 20:23:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 20:23:43,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:43,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:23:43,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:23:43,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:43,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:43,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1041932083, now seen corresponding path program 1 times [2024-10-14 20:23:43,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:43,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288700308] [2024-10-14 20:23:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:43,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:43,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:43,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288700308] [2024-10-14 20:23:43,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288700308] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:43,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847436117] [2024-10-14 20:23:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:43,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:43,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:43,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:23:43,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:23:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:43,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:23:43,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:43,623 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:43,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847436117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:43,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:43,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-10-14 20:23:43,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420277190] [2024-10-14 20:23:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:43,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:23:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:23:43,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:23:43,627 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-10-14 20:23:43,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:43,682 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2024-10-14 20:23:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:23:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 17 [2024-10-14 20:23:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:43,685 INFO L225 Difference]: With dead ends: 41 [2024-10-14 20:23:43,685 INFO L226 Difference]: Without dead ends: 40 [2024-10-14 20:23:43,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:23:43,686 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 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 [2024-10-14 20:23:43,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-14 20:23:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2024-10-14 20:23:43,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 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) [2024-10-14 20:23:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-10-14 20:23:43,697 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 17 [2024-10-14 20:23:43,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:43,698 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-10-14 20:23:43,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-10-14 20:23:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-10-14 20:23:43,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 20:23:43,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:43,700 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:43,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:43,901 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 [2024-10-14 20:23:43,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:43,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1987176260, now seen corresponding path program 1 times [2024-10-14 20:23:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135202521] [2024-10-14 20:23:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:43,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 20:23:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:44,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:44,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135202521] [2024-10-14 20:23:44,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135202521] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:44,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531231154] [2024-10-14 20:23:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:44,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:44,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:44,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:23:44,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:23:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 20:23:44,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:23:44,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:44,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531231154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:44,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:44,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 20:23:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994197213] [2024-10-14 20:23:44,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:44,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:23:44,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:44,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:23:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:23:44,230 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 20:23:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:44,249 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-10-14 20:23:44,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:23:44,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20 [2024-10-14 20:23:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:44,251 INFO L225 Difference]: With dead ends: 36 [2024-10-14 20:23:44,251 INFO L226 Difference]: Without dead ends: 35 [2024-10-14 20:23:44,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:23:44,253 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:44,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 36 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-14 20:23:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-14 20:23:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 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) [2024-10-14 20:23:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-10-14 20:23:44,264 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 20 [2024-10-14 20:23:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:44,265 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-10-14 20:23:44,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 20:23:44,265 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-10-14 20:23:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 20:23:44,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:44,266 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:44,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:23:44,467 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 [2024-10-14 20:23:44,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:44,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1472922035, now seen corresponding path program 1 times [2024-10-14 20:23:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435264033] [2024-10-14 20:23:44,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:44,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 20:23:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:44,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435264033] [2024-10-14 20:23:44,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435264033] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:44,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030423751] [2024-10-14 20:23:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:44,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:44,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:44,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:23:44,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:23:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:44,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 20:23:44,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:23:44,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030423751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:44,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:44,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 20:23:44,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474059530] [2024-10-14 20:23:44,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:44,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:23:44,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:44,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:23:44,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:23:44,773 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-14 20:23:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:44,785 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2024-10-14 20:23:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:23:44,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 21 [2024-10-14 20:23:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:44,787 INFO L225 Difference]: With dead ends: 35 [2024-10-14 20:23:44,787 INFO L226 Difference]: Without dead ends: 32 [2024-10-14 20:23:44,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:23:44,788 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:44,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-14 20:23:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-14 20:23:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.28) internal successors, (32), 28 states have internal predecessors, (32), 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) [2024-10-14 20:23:44,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-10-14 20:23:44,793 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 21 [2024-10-14 20:23:44,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:44,793 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-14 20:23:44,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-14 20:23:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-10-14 20:23:44,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 20:23:44,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:44,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:44,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:44,998 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 [2024-10-14 20:23:44,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:44,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1893509898, now seen corresponding path program 1 times [2024-10-14 20:23:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499486742] [2024-10-14 20:23:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 20:23:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499486742] [2024-10-14 20:23:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499486742] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266197653] [2024-10-14 20:23:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:45,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:45,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:23:45,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:23:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:23:45,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:45,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:23:45,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:23:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266197653] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:45,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:45,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-10-14 20:23:45,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385479552] [2024-10-14 20:23:45,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:45,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:23:45,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:23:45,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:23:45,378 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-10-14 20:23:45,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:45,435 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2024-10-14 20:23:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:23:45,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 23 [2024-10-14 20:23:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:45,437 INFO L225 Difference]: With dead ends: 62 [2024-10-14 20:23:45,437 INFO L226 Difference]: Without dead ends: 37 [2024-10-14 20:23:45,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:23:45,438 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:45,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-14 20:23:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-14 20:23:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 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) [2024-10-14 20:23:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-10-14 20:23:45,443 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 23 [2024-10-14 20:23:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:45,443 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-10-14 20:23:45,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-10-14 20:23:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-10-14 20:23:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:23:45,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:45,445 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:45,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:45,645 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 [2024-10-14 20:23:45,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:45,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 563668553, now seen corresponding path program 2 times [2024-10-14 20:23:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:45,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17782394] [2024-10-14 20:23:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:45,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 20:23:46,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:46,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17782394] [2024-10-14 20:23:46,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17782394] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:46,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319337363] [2024-10-14 20:23:46,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:23:46,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:46,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:46,011 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) [2024-10-14 20:23:46,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:23:46,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 20:23:46,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:23:46,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:23:46,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:46,189 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:46,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319337363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:46,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2024-10-14 20:23:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622500174] [2024-10-14 20:23:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:46,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:23:46,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:23:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:46,191 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-14 20:23:46,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:46,221 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2024-10-14 20:23:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:23:46,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 31 [2024-10-14 20:23:46,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:46,223 INFO L225 Difference]: With dead ends: 37 [2024-10-14 20:23:46,223 INFO L226 Difference]: Without dead ends: 36 [2024-10-14 20:23:46,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:46,224 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:46,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:46,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-14 20:23:46,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-14 20:23:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.206896551724138) internal successors, (35), 31 states have internal predecessors, (35), 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) [2024-10-14 20:23:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-10-14 20:23:46,233 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 31 [2024-10-14 20:23:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:46,234 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-10-14 20:23:46,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-14 20:23:46,234 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-10-14 20:23:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:23:46,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:46,235 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:46,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:23:46,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:46,436 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:46,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:46,436 INFO L85 PathProgramCache]: Analyzing trace with hash 293804516, now seen corresponding path program 1 times [2024-10-14 20:23:46,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:46,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295884189] [2024-10-14 20:23:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:46,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 20:23:46,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:46,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295884189] [2024-10-14 20:23:46,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295884189] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:46,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532905197] [2024-10-14 20:23:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:46,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:46,685 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) [2024-10-14 20:23:46,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:23:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:46,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:23:46,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:46,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:46,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532905197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:46,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:46,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2024-10-14 20:23:46,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433410359] [2024-10-14 20:23:46,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:46,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:23:46,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:23:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:46,885 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 20:23:46,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:46,915 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-10-14 20:23:46,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:23:46,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 32 [2024-10-14 20:23:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:46,916 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:23:46,916 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:23:46,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:46,917 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:46,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 74 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:23:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-10-14 20:23:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 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) [2024-10-14 20:23:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-10-14 20:23:46,928 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 32 [2024-10-14 20:23:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:46,929 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-10-14 20:23:46,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 20:23:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-10-14 20:23:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:23:46,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:46,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:46,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:47,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:47,132 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:47,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash 293856058, now seen corresponding path program 1 times [2024-10-14 20:23:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623999163] [2024-10-14 20:23:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 20:23:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623999163] [2024-10-14 20:23:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623999163] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382065167] [2024-10-14 20:23:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:47,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:47,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:47,373 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) [2024-10-14 20:23:47,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:23:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:23:47,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:47,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:47,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382065167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:47,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:47,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2024-10-14 20:23:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728907481] [2024-10-14 20:23:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:47,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:23:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:47,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:23:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:47,571 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 20:23:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:47,595 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-14 20:23:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:23:47,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 32 [2024-10-14 20:23:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:47,596 INFO L225 Difference]: With dead ends: 45 [2024-10-14 20:23:47,596 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:23:47,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:47,597 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:47,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:23:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-14 20:23:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 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) [2024-10-14 20:23:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-10-14 20:23:47,604 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 32 [2024-10-14 20:23:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:47,605 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-10-14 20:23:47,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 20:23:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-10-14 20:23:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 20:23:47,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:47,606 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:47,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:23:47,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:47,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:47,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:47,808 INFO L85 PathProgramCache]: Analyzing trace with hash 518005516, now seen corresponding path program 1 times [2024-10-14 20:23:47,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:47,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097670103] [2024-10-14 20:23:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:47,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,027 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 20:23:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097670103] [2024-10-14 20:23:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097670103] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241995638] [2024-10-14 20:23:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:48,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:48,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:48,030 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) [2024-10-14 20:23:48,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:23:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:23:48,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:48,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:48,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241995638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:48,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:48,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2024-10-14 20:23:48,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961047695] [2024-10-14 20:23:48,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:48,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:23:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:23:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:48,236 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-14 20:23:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:48,261 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2024-10-14 20:23:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:23:48,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 33 [2024-10-14 20:23:48,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:48,262 INFO L225 Difference]: With dead ends: 46 [2024-10-14 20:23:48,262 INFO L226 Difference]: Without dead ends: 41 [2024-10-14 20:23:48,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:23:48,263 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:48,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 76 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-14 20:23:48,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-14 20:23:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 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) [2024-10-14 20:23:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-10-14 20:23:48,271 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 33 [2024-10-14 20:23:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:48,271 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-10-14 20:23:48,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-14 20:23:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-10-14 20:23:48,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:23:48,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:48,272 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:23:48,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:48,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 20:23:48,473 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:48,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:48,474 INFO L85 PathProgramCache]: Analyzing trace with hash 742551468, now seen corresponding path program 1 times [2024-10-14 20:23:48,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:48,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539309471] [2024-10-14 20:23:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:48,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 20:23:48,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:48,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539309471] [2024-10-14 20:23:48,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539309471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:48,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825366245] [2024-10-14 20:23:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:48,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:48,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:48,678 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) [2024-10-14 20:23:48,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:23:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:48,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:23:48,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:48,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:23:48,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825366245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:23:48,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:23:48,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-14 20:23:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619571349] [2024-10-14 20:23:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:23:48,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:23:48,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:23:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:23:48,939 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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) [2024-10-14 20:23:48,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:48,973 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2024-10-14 20:23:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:23:48,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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 37 [2024-10-14 20:23:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:48,974 INFO L225 Difference]: With dead ends: 41 [2024-10-14 20:23:48,974 INFO L226 Difference]: Without dead ends: 40 [2024-10-14 20:23:48,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:23:48,975 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:48,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 91 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:23:48,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-14 20:23:48,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-14 20:23:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 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) [2024-10-14 20:23:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2024-10-14 20:23:48,981 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 37 [2024-10-14 20:23:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:48,982 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2024-10-14 20:23:48,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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) [2024-10-14 20:23:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2024-10-14 20:23:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:23:48,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:48,984 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:49,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:23:49,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:49,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:49,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash 742603010, now seen corresponding path program 1 times [2024-10-14 20:23:49,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:49,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911032030] [2024-10-14 20:23:49,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:49,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:49,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:49,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:49,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:23:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911032030] [2024-10-14 20:23:49,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911032030] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:49,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226959115] [2024-10-14 20:23:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:49,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:49,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:49,413 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) [2024-10-14 20:23:49,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:23:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:49,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:23:49,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:49,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:49,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226959115] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:49,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:49,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 17 [2024-10-14 20:23:49,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538811182] [2024-10-14 20:23:49,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:49,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 20:23:49,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:49,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 20:23:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:23:49,745 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:23:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:49,890 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2024-10-14 20:23:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 20:23:49,890 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-10-14 20:23:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:49,891 INFO L225 Difference]: With dead ends: 79 [2024-10-14 20:23:49,891 INFO L226 Difference]: Without dead ends: 61 [2024-10-14 20:23:49,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:23:49,892 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:49,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 285 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-14 20:23:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-10-14 20:23:49,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 50 states have internal predecessors, (56), 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) [2024-10-14 20:23:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-10-14 20:23:49,900 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 37 [2024-10-14 20:23:49,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:49,902 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-10-14 20:23:49,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:23:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-10-14 20:23:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:23:49,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:49,903 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-10-14 20:23:49,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:50,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-14 20:23:50,104 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:50,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:50,104 INFO L85 PathProgramCache]: Analyzing trace with hash -163704132, now seen corresponding path program 1 times [2024-10-14 20:23:50,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:50,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013938012] [2024-10-14 20:23:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:50,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:50,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:50,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:50,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:50,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013938012] [2024-10-14 20:23:50,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013938012] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292612787] [2024-10-14 20:23:50,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:50,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:50,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:50,218 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) [2024-10-14 20:23:50,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:23:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:50,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:23:50,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:50,491 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:50,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292612787] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:50,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:50,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-14 20:23:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354031970] [2024-10-14 20:23:50,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:50,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:23:50,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:23:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:23:50,549 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-10-14 20:23:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:50,621 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2024-10-14 20:23:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:23:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 41 [2024-10-14 20:23:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:50,623 INFO L225 Difference]: With dead ends: 64 [2024-10-14 20:23:50,623 INFO L226 Difference]: Without dead ends: 55 [2024-10-14 20:23:50,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:23:50,625 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:50,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 125 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-14 20:23:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-14 20:23:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 50 states have internal predecessors, (54), 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) [2024-10-14 20:23:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-10-14 20:23:50,637 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 41 [2024-10-14 20:23:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:50,638 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-10-14 20:23:50,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-10-14 20:23:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-10-14 20:23:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:23:50,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:50,639 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:50,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:50,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:23:50,840 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:50,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash -665880132, now seen corresponding path program 2 times [2024-10-14 20:23:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081204115] [2024-10-14 20:23:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:51,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:51,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:51,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:51,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:51,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081204115] [2024-10-14 20:23:51,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081204115] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:51,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075684703] [2024-10-14 20:23:51,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:23:51,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:51,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:51,046 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) [2024-10-14 20:23:51,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:23:51,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:23:51,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:23:51,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:23:51,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:51,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:51,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075684703] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:51,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:51,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2024-10-14 20:23:51,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122024160] [2024-10-14 20:23:51,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:51,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 20:23:51,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 20:23:51,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:23:51,441 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 21 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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) [2024-10-14 20:23:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:51,524 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2024-10-14 20:23:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 20:23:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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 [2024-10-14 20:23:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:51,525 INFO L225 Difference]: With dead ends: 82 [2024-10-14 20:23:51,525 INFO L226 Difference]: Without dead ends: 68 [2024-10-14 20:23:51,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:23:51,526 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:51,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 181 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-14 20:23:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2024-10-14 20:23:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 61 states have (on average 1.0655737704918034) internal successors, (65), 62 states have internal predecessors, (65), 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) [2024-10-14 20:23:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2024-10-14 20:23:51,531 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 51 [2024-10-14 20:23:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:51,531 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2024-10-14 20:23:51,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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) [2024-10-14 20:23:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2024-10-14 20:23:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 20:23:51,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:51,532 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:51,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 20:23:51,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:23:51,733 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:51,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash 332979890, now seen corresponding path program 1 times [2024-10-14 20:23:51,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:51,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960554035] [2024-10-14 20:23:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:52,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:52,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:52,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:52,028 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:52,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:52,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960554035] [2024-10-14 20:23:52,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960554035] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:52,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276167880] [2024-10-14 20:23:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:52,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:52,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:52,031 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) [2024-10-14 20:23:52,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:23:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:52,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:23:52,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:52,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:52,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276167880] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:52,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:52,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2024-10-14 20:23:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12959835] [2024-10-14 20:23:52,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:52,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-14 20:23:52,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:52,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-14 20:23:52,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 20:23:52,589 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 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) [2024-10-14 20:23:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:52,692 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2024-10-14 20:23:52,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 20:23:52,692 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 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 65 [2024-10-14 20:23:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:52,693 INFO L225 Difference]: With dead ends: 120 [2024-10-14 20:23:52,693 INFO L226 Difference]: Without dead ends: 119 [2024-10-14 20:23:52,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 20:23:52,694 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:52,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 226 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:52,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-14 20:23:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2024-10-14 20:23:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 100 states have internal predecessors, (110), 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) [2024-10-14 20:23:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2024-10-14 20:23:52,700 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 65 [2024-10-14 20:23:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:52,701 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2024-10-14 20:23:52,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 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) [2024-10-14 20:23:52,701 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2024-10-14 20:23:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 20:23:52,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:52,702 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:52,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:52,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:23:52,906 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:52,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash -681310276, now seen corresponding path program 3 times [2024-10-14 20:23:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:52,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543158568] [2024-10-14 20:23:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:53,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:53,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:23:53,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:53,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543158568] [2024-10-14 20:23:53,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543158568] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:53,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781695444] [2024-10-14 20:23:53,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:23:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:53,266 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) [2024-10-14 20:23:53,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:23:53,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-14 20:23:53,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:23:53,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-10-14 20:23:53,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:53,658 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 [2024-10-14 20:23:53,739 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 19 treesize of output 1 [2024-10-14 20:23:53,838 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 18 treesize of output 4 [2024-10-14 20:23:53,841 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 [2024-10-14 20:23:53,905 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_node_create_~temp~0#1.base_57| Int)) (and (= (select |c_old(#valid)| |v_node_create_~temp~0#1.base_57|) 0) (= |c_#memory_$Pointer$#2.base| (store |c_old(#memory_$Pointer$#2.base)| |v_node_create_~temp~0#1.base_57| (select |c_#memory_$Pointer$#2.base| |v_node_create_~temp~0#1.base_57|))))) is different from true [2024-10-14 20:23:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:23:53,933 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 27 treesize of output 22 [2024-10-14 20:23:53,952 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-14 20:23:53,952 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 [2024-10-14 20:23:54,009 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 26 treesize of output 18 [2024-10-14 20:23:54,054 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 28 treesize of output 8 [2024-10-14 20:23:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 120 trivial. 2 not checked. [2024-10-14 20:23:54,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:54,207 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_62| Int) (v_ArrVal_1981 (Array Int Int))) (or (not (= (select |c_#valid| |v_node_create_~temp~0#1.base_62|) 0)) (not (= (select (select (store |c_#memory_$Pointer$#2.base| |v_node_create_~temp~0#1.base_62| v_ArrVal_1981) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_sll_append_~head#1.base|) |c_ULTIMATE.start_sll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_sll_append_~head#1.base|) |c_ULTIMATE.start_sll_append_~head#1.offset|) 4)) 0)))) is different from false [2024-10-14 20:23:54,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781695444] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:54,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:23:54,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2024-10-14 20:23:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807737372] [2024-10-14 20:23:54,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:54,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-14 20:23:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:54,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-14 20:23:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1199, Unknown=2, NotChecked=142, Total=1482 [2024-10-14 20:23:54,212 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 35 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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) [2024-10-14 20:23:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:54,904 INFO L93 Difference]: Finished difference Result 196 states and 216 transitions. [2024-10-14 20:23:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 20:23:54,905 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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 71 [2024-10-14 20:23:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:54,906 INFO L225 Difference]: With dead ends: 196 [2024-10-14 20:23:54,906 INFO L226 Difference]: Without dead ends: 108 [2024-10-14 20:23:54,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=328, Invalid=2984, Unknown=2, NotChecked=226, Total=3540 [2024-10-14 20:23:54,909 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 64 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:54,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 410 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 444 Invalid, 0 Unknown, 84 Unchecked, 0.3s Time] [2024-10-14 20:23:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-14 20:23:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-10-14 20:23:54,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.099009900990099) internal successors, (111), 102 states have internal predecessors, (111), 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) [2024-10-14 20:23:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2024-10-14 20:23:54,921 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 71 [2024-10-14 20:23:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:54,921 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2024-10-14 20:23:54,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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) [2024-10-14 20:23:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2024-10-14 20:23:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 20:23:54,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:54,922 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 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] [2024-10-14 20:23:54,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:23:55,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:55,123 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:55,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 682430319, now seen corresponding path program 1 times [2024-10-14 20:23:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:55,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436690862] [2024-10-14 20:23:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:55,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:55,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:55,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:55,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:55,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436690862] [2024-10-14 20:23:55,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436690862] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:55,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652852058] [2024-10-14 20:23:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:55,579 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) [2024-10-14 20:23:55,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:23:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:55,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:23:55,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:55,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:56,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652852058] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:56,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:56,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 40 [2024-10-14 20:23:56,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359985726] [2024-10-14 20:23:56,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:56,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-14 20:23:56,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:56,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-14 20:23:56,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=1253, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 20:23:56,317 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand has 41 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 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) [2024-10-14 20:23:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:56,447 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2024-10-14 20:23:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-14 20:23:56,447 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 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 78 [2024-10-14 20:23:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:56,448 INFO L225 Difference]: With dead ends: 144 [2024-10-14 20:23:56,448 INFO L226 Difference]: Without dead ends: 120 [2024-10-14 20:23:56,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=387, Invalid=1253, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 20:23:56,450 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:56,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 286 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-14 20:23:56,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-10-14 20:23:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 113 states have (on average 1.0353982300884956) internal successors, (117), 114 states have internal predecessors, (117), 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) [2024-10-14 20:23:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2024-10-14 20:23:56,457 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 78 [2024-10-14 20:23:56,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:56,458 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2024-10-14 20:23:56,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 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) [2024-10-14 20:23:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2024-10-14 20:23:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 20:23:56,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:56,461 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:23:56,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:56,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:23:56,665 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:56,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1225888119, now seen corresponding path program 1 times [2024-10-14 20:23:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:56,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125521507] [2024-10-14 20:23:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:56,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:57,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:23:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:57,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:23:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:57,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:23:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:23:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125521507] [2024-10-14 20:23:57,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125521507] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:23:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994600303] [2024-10-14 20:23:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:57,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:23:57,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:23:57,564 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) [2024-10-14 20:23:57,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:23:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:23:57,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-14 20:23:57,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:23:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:57,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:23:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:23:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994600303] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:23:59,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:23:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35, 35] total 72 [2024-10-14 20:23:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41145410] [2024-10-14 20:23:59,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:23:59,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-10-14 20:23:59,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:23:59,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-10-14 20:23:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1333, Invalid=3923, Unknown=0, NotChecked=0, Total=5256 [2024-10-14 20:23:59,129 INFO L87 Difference]: Start difference. First operand 119 states and 123 transitions. Second operand has 73 states, 72 states have (on average 2.736111111111111) internal successors, (197), 72 states have internal predecessors, (197), 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) [2024-10-14 20:23:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:23:59,309 INFO L93 Difference]: Finished difference Result 242 states and 280 transitions. [2024-10-14 20:23:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-14 20:23:59,309 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 2.736111111111111) internal successors, (197), 72 states have internal predecessors, (197), 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 117 [2024-10-14 20:23:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:23:59,311 INFO L225 Difference]: With dead ends: 242 [2024-10-14 20:23:59,311 INFO L226 Difference]: Without dead ends: 241 [2024-10-14 20:23:59,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1333, Invalid=3923, Unknown=0, NotChecked=0, Total=5256 [2024-10-14 20:23:59,313 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 80 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:23:59,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 276 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:23:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-14 20:23:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 207. [2024-10-14 20:23:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.1044776119402986) internal successors, (222), 202 states have internal predecessors, (222), 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) [2024-10-14 20:23:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 228 transitions. [2024-10-14 20:23:59,325 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 228 transitions. Word has length 117 [2024-10-14 20:23:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:23:59,325 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 228 transitions. [2024-10-14 20:23:59,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 2.736111111111111) internal successors, (197), 72 states have internal predecessors, (197), 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) [2024-10-14 20:23:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 228 transitions. [2024-10-14 20:23:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 20:23:59,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:23:59,326 INFO L215 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 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] [2024-10-14 20:23:59,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-14 20:23:59,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:23:59,527 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:23:59,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:23:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash 217764545, now seen corresponding path program 2 times [2024-10-14 20:23:59,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:23:59,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949235994] [2024-10-14 20:23:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:23:59,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:23:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:00,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:24:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:00,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:24:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:00,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:24:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:00,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949235994] [2024-10-14 20:24:00,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949235994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770637466] [2024-10-14 20:24:00,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:24:00,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:00,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:00,584 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) [2024-10-14 20:24:00,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:24:00,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:24:00,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:00,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-14 20:24:00,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:00,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:02,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770637466] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:02,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:02,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 37] total 76 [2024-10-14 20:24:02,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512754266] [2024-10-14 20:24:02,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-10-14 20:24:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-10-14 20:24:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1413, Invalid=4439, Unknown=0, NotChecked=0, Total=5852 [2024-10-14 20:24:02,119 INFO L87 Difference]: Start difference. First operand 207 states and 228 transitions. Second operand has 77 states, 76 states have (on average 2.75) internal successors, (209), 76 states have internal predecessors, (209), 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) [2024-10-14 20:24:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:02,298 INFO L93 Difference]: Finished difference Result 251 states and 272 transitions. [2024-10-14 20:24:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-10-14 20:24:02,299 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 2.75) internal successors, (209), 76 states have internal predecessors, (209), 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 123 [2024-10-14 20:24:02,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:02,300 INFO L225 Difference]: With dead ends: 251 [2024-10-14 20:24:02,300 INFO L226 Difference]: Without dead ends: 210 [2024-10-14 20:24:02,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1802 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1413, Invalid=4439, Unknown=0, NotChecked=0, Total=5852 [2024-10-14 20:24:02,303 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 70 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:02,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 351 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-14 20:24:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2024-10-14 20:24:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 203 states have (on average 1.019704433497537) internal successors, (207), 204 states have internal predecessors, (207), 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) [2024-10-14 20:24:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 213 transitions. [2024-10-14 20:24:02,333 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 213 transitions. Word has length 123 [2024-10-14 20:24:02,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:02,334 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 213 transitions. [2024-10-14 20:24:02,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 2.75) internal successors, (209), 76 states have internal predecessors, (209), 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) [2024-10-14 20:24:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 213 transitions. [2024-10-14 20:24:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-10-14 20:24:02,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:02,336 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 34, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:02,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-14 20:24:02,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:02,537 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:02,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash -483988425, now seen corresponding path program 2 times [2024-10-14 20:24:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:02,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93180739] [2024-10-14 20:24:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:24:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:24:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:24:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:05,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93180739] [2024-10-14 20:24:05,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93180739] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:05,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580390843] [2024-10-14 20:24:05,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:24:05,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:05,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:05,346 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) [2024-10-14 20:24:05,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:24:05,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:24:05,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:05,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-14 20:24:05,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:05,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:09,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580390843] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:09,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:09,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71, 71] total 144 [2024-10-14 20:24:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097515683] [2024-10-14 20:24:09,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:09,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-10-14 20:24:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:09,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-10-14 20:24:09,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5257, Invalid=15623, Unknown=0, NotChecked=0, Total=20880 [2024-10-14 20:24:09,522 INFO L87 Difference]: Start difference. First operand 209 states and 213 transitions. Second operand has 145 states, 144 states have (on average 2.6180555555555554) internal successors, (377), 144 states have internal predecessors, (377), 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) [2024-10-14 20:24:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:09,955 INFO L93 Difference]: Finished difference Result 458 states and 532 transitions. [2024-10-14 20:24:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-10-14 20:24:09,956 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 144 states have (on average 2.6180555555555554) internal successors, (377), 144 states have internal predecessors, (377), 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 207 [2024-10-14 20:24:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:09,958 INFO L225 Difference]: With dead ends: 458 [2024-10-14 20:24:09,958 INFO L226 Difference]: Without dead ends: 457 [2024-10-14 20:24:09,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6467 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5257, Invalid=15623, Unknown=0, NotChecked=0, Total=20880 [2024-10-14 20:24:09,963 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 246 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:09,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 503 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:24:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-10-14 20:24:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 387. [2024-10-14 20:24:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 381 states have (on average 1.1023622047244095) internal successors, (420), 382 states have internal predecessors, (420), 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) [2024-10-14 20:24:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 426 transitions. [2024-10-14 20:24:09,977 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 426 transitions. Word has length 207 [2024-10-14 20:24:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:09,977 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 426 transitions. [2024-10-14 20:24:09,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 144 states have (on average 2.6180555555555554) internal successors, (377), 144 states have internal predecessors, (377), 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) [2024-10-14 20:24:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 426 transitions. [2024-10-14 20:24:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 20:24:09,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:09,979 INFO L215 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 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] [2024-10-14 20:24:09,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-14 20:24:10,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:10,180 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:10,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1596908159, now seen corresponding path program 3 times [2024-10-14 20:24:10,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:10,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793521377] [2024-10-14 20:24:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:12,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:24:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:12,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:24:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:12,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:24:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3063 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:24:12,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793521377] [2024-10-14 20:24:12,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793521377] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656155660] [2024-10-14 20:24:12,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:24:12,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:12,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:12,903 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:12,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:24:13,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-10-14 20:24:13,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:13,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 127 conjuncts are in the unsatisfiable core [2024-10-14 20:24:13,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:13,620 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 [2024-10-14 20:24:13,910 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-14 20:24:13,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-10-14 20:24:13,974 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 [2024-10-14 20:24:13,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 20:24:14,142 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 30 treesize of output 14 [2024-10-14 20:24:14,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-10-14 20:24:14,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2024-10-14 20:24:14,388 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2024-10-14 20:24:14,388 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 30 treesize of output 22 [2024-10-14 20:24:14,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:14,399 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 48 treesize of output 32 [2024-10-14 20:24:14,431 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-10-14 20:24:14,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-10-14 20:24:15,013 INFO L349 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2024-10-14 20:24:15,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 93 [2024-10-14 20:24:15,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 52 [2024-10-14 20:24:15,128 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 116 treesize of output 80 [2024-10-14 20:24:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3063 backedges. 408 proven. 15 refuted. 0 times theorem prover too weak. 2640 trivial. 0 not checked. [2024-10-14 20:24:15,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:17,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656155660] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:17,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:24:17,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 27] total 100 [2024-10-14 20:24:17,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026259966] [2024-10-14 20:24:17,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:17,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-10-14 20:24:17,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:17,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-10-14 20:24:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1472, Invalid=10738, Unknown=0, NotChecked=0, Total=12210 [2024-10-14 20:24:17,435 INFO L87 Difference]: Start difference. First operand 387 states and 426 transitions. Second operand has 100 states, 96 states have (on average 2.5625) internal successors, (246), 94 states have internal predecessors, (246), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:24:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:23,415 INFO L93 Difference]: Finished difference Result 761 states and 836 transitions. [2024-10-14 20:24:23,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-10-14 20:24:23,415 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 96 states have (on average 2.5625) internal successors, (246), 94 states have internal predecessors, (246), 4 states have call successors, (5), 4 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 213 [2024-10-14 20:24:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:23,417 INFO L225 Difference]: With dead ends: 761 [2024-10-14 20:24:23,417 INFO L226 Difference]: Without dead ends: 393 [2024-10-14 20:24:23,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8265 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=4855, Invalid=33365, Unknown=0, NotChecked=0, Total=38220 [2024-10-14 20:24:23,423 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 230 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:23,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 557 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:24:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-10-14 20:24:23,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 392. [2024-10-14 20:24:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 385 states have (on average 1.0987012987012987) internal successors, (423), 386 states have internal predecessors, (423), 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) [2024-10-14 20:24:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 429 transitions. [2024-10-14 20:24:23,439 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 429 transitions. Word has length 213 [2024-10-14 20:24:23,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:23,440 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 429 transitions. [2024-10-14 20:24:23,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 96 states have (on average 2.5625) internal successors, (246), 94 states have internal predecessors, (246), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:24:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 429 transitions. [2024-10-14 20:24:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-14 20:24:23,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:23,441 INFO L215 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 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] [2024-10-14 20:24:23,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-14 20:24:23,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:23,642 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:23,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1064616330, now seen corresponding path program 4 times [2024-10-14 20:24:23,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:23,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396874] [2024-10-14 20:24:23,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:26,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 20:24:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:26,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:24:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:26,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:24:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:26,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 20:24:26,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:26,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396874] [2024-10-14 20:24:26,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396874] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:26,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932623678] [2024-10-14 20:24:26,626 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:24:26,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:26,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:26,628 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:26,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:24:27,208 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:24:27,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:27,221 WARN L253 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 490 conjuncts are in the unsatisfiable core [2024-10-14 20:24:27,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:27,238 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 [2024-10-14 20:24:27,357 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 [2024-10-14 20:24:27,359 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 [2024-10-14 20:24:27,559 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 8 treesize of output 1 [2024-10-14 20:24:27,572 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-14 20:24:27,572 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 [2024-10-14 20:24:27,578 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 8 treesize of output 1 [2024-10-14 20:24:27,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-14 20:24:27,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 20:24:27,821 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 42 treesize of output 18 [2024-10-14 20:24:27,826 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 [2024-10-14 20:24:27,830 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 11 treesize of output 3 [2024-10-14 20:24:28,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:28,084 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 60 treesize of output 36 [2024-10-14 20:24:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:28,103 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-10-14 20:24:28,103 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 [2024-10-14 20:24:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:28,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-10-14 20:24:29,037 INFO L349 Elim1Store]: treesize reduction 178, result has 16.0 percent of original size [2024-10-14 20:24:29,038 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 8 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 150 [2024-10-14 20:24:29,084 INFO L349 Elim1Store]: treesize reduction 312, result has 9.8 percent of original size [2024-10-14 20:24:29,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 258 treesize of output 179 [2024-10-14 20:24:29,214 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 228 treesize of output 168 [2024-10-14 20:24:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:38,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 20:24:38,850 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 20:24:38,855 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-10-14 20:24:38,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 46 [2024-10-14 20:24:39,288 INFO L349 Elim1Store]: treesize reduction 103, result has 14.9 percent of original size [2024-10-14 20:24:39,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 51 [2024-10-14 20:24:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 294 proven. 470 refuted. 0 times theorem prover too weak. 2480 trivial. 0 not checked. [2024-10-14 20:24:39,363 INFO L311 TraceCheckSpWp]: Computing backward predicates...