./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c -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 02d2a7ecaeb1f9a3fd2c207ee063800bfd7475435ba7bc7e95648b1704092bfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 23:09:26,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 23:09:26,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 23:09:26,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 23:09:26,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 23:09:26,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 23:09:26,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 23:09:26,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 23:09:26,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 23:09:26,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 23:09:26,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 23:09:26,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 23:09:26,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 23:09:26,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 23:09:26,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 23:09:26,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 23:09:26,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 23:09:26,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 23:09:26,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 23:09:26,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 23:09:26,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 23:09:26,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 23:09:26,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 23:09:26,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 23:09:26,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 23:09:26,694 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 23:09:26,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 23:09:26,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 23:09:26,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 23:09:26,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 23:09:26,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 23:09:26,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 23:09:26,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 23:09:26,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 23:09:26,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:09:26,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 23:09:26,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 23:09:26,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 23:09:26,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 23:09:26,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 23:09:26,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 23:09:26,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 23:09:26,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 23:09:26,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 23:09:26,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02d2a7ecaeb1f9a3fd2c207ee063800bfd7475435ba7bc7e95648b1704092bfe [2024-11-22 23:09:26,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 23:09:27,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 23:09:27,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 23:09:27,009 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 23:09:27,009 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 23:09:27,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c [2024-11-22 23:09:28,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 23:09:28,706 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 23:09:28,707 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c [2024-11-22 23:09:28,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d82bfd3/68ae6e24222244a4bda822388626a21f/FLAG26872d996 [2024-11-22 23:09:28,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d82bfd3/68ae6e24222244a4bda822388626a21f [2024-11-22 23:09:28,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 23:09:28,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 23:09:28,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 23:09:28,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 23:09:28,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 23:09:28,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:28" (1/1) ... [2024-11-22 23:09:28,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a68cd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:28, skipping insertion in model container [2024-11-22 23:09:28,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:28" (1/1) ... [2024-11-22 23:09:28,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 23:09:28,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:09:28,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 23:09:29,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:09:29,045 INFO L204 MainTranslator]: Completed translation [2024-11-22 23:09:29,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29 WrapperNode [2024-11-22 23:09:29,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 23:09:29,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 23:09:29,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 23:09:29,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 23:09:29,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,107 INFO L138 Inliner]: procedures = 16, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-22 23:09:29,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 23:09:29,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 23:09:29,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 23:09:29,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 23:09:29,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,142 INFO L175 MemorySlicer]: Split 51 memory accesses to 5 slices as follows [2, 4, 36, 5, 4]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 2]. [2024-11-22 23:09:29,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 23:09:29,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 23:09:29,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 23:09:29,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 23:09:29,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (1/1) ... [2024-11-22 23:09:29,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:09:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:29,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 23:09:29,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 23:09:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 23:09:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 23:09:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 23:09:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 23:09:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 23:09:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 23:09:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 23:09:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 23:09:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 23:09:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 23:09:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 23:09:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 23:09:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 23:09:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 23:09:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 23:09:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 23:09:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2024-11-22 23:09:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2024-11-22 23:09:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 23:09:29,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 23:09:29,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 23:09:30,171 INFO L? ?]: Removed 370 outVars from TransFormulas that were not future-live. [2024-11-22 23:09:30,172 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 23:09:30,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 23:09:30,198 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 23:09:30,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:30 BoogieIcfgContainer [2024-11-22 23:09:30,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 23:09:30,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 23:09:30,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 23:09:30,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 23:09:30,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:09:28" (1/3) ... [2024-11-22 23:09:30,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e45d305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:09:30, skipping insertion in model container [2024-11-22 23:09:30,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:29" (2/3) ... [2024-11-22 23:09:30,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e45d305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:09:30, skipping insertion in model container [2024-11-22 23:09:30,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:30" (3/3) ... [2024-11-22 23:09:30,208 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps5-ll.c [2024-11-22 23:09:30,229 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 23:09:30,230 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2024-11-22 23:09:30,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 23:09:30,306 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;@36326122, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 23:09:30,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-11-22 23:09:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 103 states have (on average 1.854368932038835) internal successors, (191), 188 states have internal predecessors, (191), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 23:09:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 23:09:30,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:30,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:30,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:30,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:30,328 INFO L85 PathProgramCache]: Analyzing trace with hash 125491965, now seen corresponding path program 1 times [2024-11-22 23:09:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:30,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800324778] [2024-11-22 23:09:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:30,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800324778] [2024-11-22 23:09:30,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800324778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:30,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:30,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 23:09:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315202743] [2024-11-22 23:09:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:30,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 23:09:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:30,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 23:09:30,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 23:09:30,607 INFO L87 Difference]: Start difference. First operand has 195 states, 103 states have (on average 1.854368932038835) internal successors, (191), 188 states have internal predecessors, (191), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:30,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:30,640 INFO L93 Difference]: Finished difference Result 386 states and 402 transitions. [2024-11-22 23:09:30,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 23:09:30,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-22 23:09:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:30,649 INFO L225 Difference]: With dead ends: 386 [2024-11-22 23:09:30,649 INFO L226 Difference]: Without dead ends: 188 [2024-11-22 23:09:30,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 23:09:30,655 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:30,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:09:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-22 23:09:30,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-22 23:09:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 98 states have (on average 1.8571428571428572) internal successors, (182), 182 states have internal predecessors, (182), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 23:09:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 190 transitions. [2024-11-22 23:09:30,704 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 190 transitions. Word has length 8 [2024-11-22 23:09:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:30,705 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 190 transitions. [2024-11-22 23:09:30,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 190 transitions. [2024-11-22 23:09:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 23:09:30,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:30,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:30,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 23:09:30,707 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:30,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash 182750267, now seen corresponding path program 1 times [2024-11-22 23:09:30,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:30,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648063760] [2024-11-22 23:09:30,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:30,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:31,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:31,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648063760] [2024-11-22 23:09:31,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648063760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:31,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:31,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565249685] [2024-11-22 23:09:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:31,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:31,011 INFO L87 Difference]: Start difference. First operand 188 states and 190 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:31,403 INFO L93 Difference]: Finished difference Result 346 states and 351 transitions. [2024-11-22 23:09:31,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-22 23:09:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:31,406 INFO L225 Difference]: With dead ends: 346 [2024-11-22 23:09:31,406 INFO L226 Difference]: Without dead ends: 336 [2024-11-22 23:09:31,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:31,412 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 264 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:31,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 704 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-22 23:09:31,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 229. [2024-11-22 23:09:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.7956204379562044) internal successors, (246), 221 states have internal predecessors, (246), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 257 transitions. [2024-11-22 23:09:31,443 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 257 transitions. Word has length 8 [2024-11-22 23:09:31,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:31,444 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 257 transitions. [2024-11-22 23:09:31,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 257 transitions. [2024-11-22 23:09:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 23:09:31,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:31,445 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:31,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 23:09:31,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_35_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:31,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:31,446 INFO L85 PathProgramCache]: Analyzing trace with hash 837445765, now seen corresponding path program 1 times [2024-11-22 23:09:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579970332] [2024-11-22 23:09:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:31,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:31,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579970332] [2024-11-22 23:09:31,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579970332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:31,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:31,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:31,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712675490] [2024-11-22 23:09:31,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:31,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:31,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:31,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:31,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:31,742 INFO L87 Difference]: Start difference. First operand 229 states and 257 transitions. Second operand has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:32,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:32,040 INFO L93 Difference]: Finished difference Result 336 states and 341 transitions. [2024-11-22 23:09:32,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:32,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-22 23:09:32,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:32,043 INFO L225 Difference]: With dead ends: 336 [2024-11-22 23:09:32,045 INFO L226 Difference]: Without dead ends: 328 [2024-11-22 23:09:32,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:32,047 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 220 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:32,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 703 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:32,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-22 23:09:32,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 229. [2024-11-22 23:09:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.7372262773722629) internal successors, (238), 221 states have internal predecessors, (238), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 249 transitions. [2024-11-22 23:09:32,075 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 249 transitions. Word has length 18 [2024-11-22 23:09:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:32,075 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 249 transitions. [2024-11-22 23:09:32,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 249 transitions. [2024-11-22 23:09:32,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 23:09:32,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:32,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:32,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 23:09:32,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_35_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:32,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:32,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2121651597, now seen corresponding path program 1 times [2024-11-22 23:09:32,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:32,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814088046] [2024-11-22 23:09:32,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:32,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668508438] [2024-11-22 23:09:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:32,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:32,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 23:09:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:32,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 23:09:32,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:32,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:32,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:32,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814088046] [2024-11-22 23:09:32,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:32,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668508438] [2024-11-22 23:09:32,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668508438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:32,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:32,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:09:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461815425] [2024-11-22 23:09:32,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:32,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:09:32,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:09:32,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:09:32,462 INFO L87 Difference]: Start difference. First operand 229 states and 249 transitions. Second operand has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:32,771 INFO L93 Difference]: Finished difference Result 328 states and 333 transitions. [2024-11-22 23:09:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:09:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 23:09:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:32,773 INFO L225 Difference]: With dead ends: 328 [2024-11-22 23:09:32,773 INFO L226 Difference]: Without dead ends: 326 [2024-11-22 23:09:32,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:32,777 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 202 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:32,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 850 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-22 23:09:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 229. [2024-11-22 23:09:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.7226277372262773) internal successors, (236), 221 states have internal predecessors, (236), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 247 transitions. [2024-11-22 23:09:32,793 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 247 transitions. Word has length 26 [2024-11-22 23:09:32,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:32,793 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 247 transitions. [2024-11-22 23:09:32,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 247 transitions. [2024-11-22 23:09:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 23:09:32,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:32,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:32,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 23:09:32,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:32,997 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_35_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:32,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:32,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1202275121, now seen corresponding path program 1 times [2024-11-22 23:09:32,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:32,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895105068] [2024-11-22 23:09:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:32,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:33,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:33,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895105068] [2024-11-22 23:09:33,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895105068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:33,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:33,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:33,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189675937] [2024-11-22 23:09:33,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:33,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:33,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:33,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:33,218 INFO L87 Difference]: Start difference. First operand 229 states and 247 transitions. Second operand has 6 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:33,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:33,460 INFO L93 Difference]: Finished difference Result 326 states and 331 transitions. [2024-11-22 23:09:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:33,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-22 23:09:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:33,463 INFO L225 Difference]: With dead ends: 326 [2024-11-22 23:09:33,463 INFO L226 Difference]: Without dead ends: 320 [2024-11-22 23:09:33,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:33,464 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 178 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:33,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 715 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:33,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-22 23:09:33,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 229. [2024-11-22 23:09:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6788321167883211) internal successors, (230), 221 states have internal predecessors, (230), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 241 transitions. [2024-11-22 23:09:33,475 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 241 transitions. Word has length 28 [2024-11-22 23:09:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:33,476 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 241 transitions. [2024-11-22 23:09:33,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 241 transitions. [2024-11-22 23:09:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-22 23:09:33,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:33,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:33,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 23:09:33,478 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_27_to_35_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:33,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1105935723, now seen corresponding path program 1 times [2024-11-22 23:09:33,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:33,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245939594] [2024-11-22 23:09:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:33,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:33,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827484805] [2024-11-22 23:09:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:33,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:33,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:33,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:33,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 23:09:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:33,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 23:09:33,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:33,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:33,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:33,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245939594] [2024-11-22 23:09:33,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827484805] [2024-11-22 23:09:33,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827484805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:33,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 23:09:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740485163] [2024-11-22 23:09:33,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:33,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 23:09:33,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 23:09:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:33,822 INFO L87 Difference]: Start difference. First operand 229 states and 241 transitions. Second operand has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:34,118 INFO L93 Difference]: Finished difference Result 320 states and 325 transitions. [2024-11-22 23:09:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 23:09:34,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-22 23:09:34,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:34,120 INFO L225 Difference]: With dead ends: 320 [2024-11-22 23:09:34,120 INFO L226 Difference]: Without dead ends: 318 [2024-11-22 23:09:34,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-22 23:09:34,121 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 164 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:34,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 853 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-22 23:09:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 229. [2024-11-22 23:09:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6642335766423357) internal successors, (228), 221 states have internal predecessors, (228), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 239 transitions. [2024-11-22 23:09:34,130 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 239 transitions. Word has length 34 [2024-11-22 23:09:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:34,130 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 239 transitions. [2024-11-22 23:09:34,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 239 transitions. [2024-11-22 23:09:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 23:09:34,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:34,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:34,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 23:09:34,334 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,SelfDestructingSolverStorable5 [2024-11-22 23:09:34,335 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_35_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:34,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:34,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1947301417, now seen corresponding path program 1 times [2024-11-22 23:09:34,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:34,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121971063] [2024-11-22 23:09:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:34,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:34,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121971063] [2024-11-22 23:09:34,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121971063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:34,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:34,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:34,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69727926] [2024-11-22 23:09:34,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:34,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:34,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:34,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:34,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:34,553 INFO L87 Difference]: Start difference. First operand 229 states and 239 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:34,647 INFO L93 Difference]: Finished difference Result 316 states and 320 transitions. [2024-11-22 23:09:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:34,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 23:09:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:34,649 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:34,649 INFO L226 Difference]: Without dead ends: 314 [2024-11-22 23:09:34,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:34,650 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 167 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:34,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 875 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:09:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-22 23:09:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 229. [2024-11-22 23:09:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6496350364963503) internal successors, (226), 221 states have internal predecessors, (226), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 237 transitions. [2024-11-22 23:09:34,657 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 237 transitions. Word has length 36 [2024-11-22 23:09:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:34,658 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 237 transitions. [2024-11-22 23:09:34,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 237 transitions. [2024-11-22 23:09:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 23:09:34,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:34,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:34,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 23:09:34,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_35_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:34,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1249085721, now seen corresponding path program 1 times [2024-11-22 23:09:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844804226] [2024-11-22 23:09:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:34,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844804226] [2024-11-22 23:09:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844804226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:34,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:34,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:09:34,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698954426] [2024-11-22 23:09:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:34,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:09:34,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:09:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:09:34,871 INFO L87 Difference]: Start difference. First operand 229 states and 237 transitions. Second operand has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:35,416 INFO L93 Difference]: Finished difference Result 314 states and 318 transitions. [2024-11-22 23:09:35,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:09:35,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-22 23:09:35,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:35,419 INFO L225 Difference]: With dead ends: 314 [2024-11-22 23:09:35,420 INFO L226 Difference]: Without dead ends: 313 [2024-11-22 23:09:35,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:35,425 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 163 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:35,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 937 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 23:09:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-22 23:09:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 229. [2024-11-22 23:09:35,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6423357664233578) internal successors, (225), 221 states have internal predecessors, (225), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:35,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 236 transitions. [2024-11-22 23:09:35,436 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 236 transitions. Word has length 38 [2024-11-22 23:09:35,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:35,436 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 236 transitions. [2024-11-22 23:09:35,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:35,436 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 236 transitions. [2024-11-22 23:09:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 23:09:35,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:35,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:35,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 23:09:35,438 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_35_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:35,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:35,439 INFO L85 PathProgramCache]: Analyzing trace with hash 66951891, now seen corresponding path program 1 times [2024-11-22 23:09:35,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:35,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492268944] [2024-11-22 23:09:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:35,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:35,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492268944] [2024-11-22 23:09:35,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492268944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:35,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:35,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620141782] [2024-11-22 23:09:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:35,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:35,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:35,661 INFO L87 Difference]: Start difference. First operand 229 states and 236 transitions. Second operand has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:35,978 INFO L93 Difference]: Finished difference Result 313 states and 317 transitions. [2024-11-22 23:09:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:35,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-22 23:09:35,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:35,980 INFO L225 Difference]: With dead ends: 313 [2024-11-22 23:09:35,980 INFO L226 Difference]: Without dead ends: 312 [2024-11-22 23:09:35,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:35,980 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 160 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:35,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 823 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:35,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-22 23:09:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 229. [2024-11-22 23:09:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.635036496350365) internal successors, (224), 221 states have internal predecessors, (224), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:35,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 235 transitions. [2024-11-22 23:09:35,988 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 235 transitions. Word has length 39 [2024-11-22 23:09:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:35,988 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 235 transitions. [2024-11-22 23:09:35,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 235 transitions. [2024-11-22 23:09:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 23:09:35,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:35,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:35,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 23:09:35,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_35_0Err32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:35,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:35,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2075508827, now seen corresponding path program 1 times [2024-11-22 23:09:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311945792] [2024-11-22 23:09:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:35,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:36,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:36,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311945792] [2024-11-22 23:09:36,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311945792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:36,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:36,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:09:36,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198868410] [2024-11-22 23:09:36,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:36,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:09:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:09:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:09:36,224 INFO L87 Difference]: Start difference. First operand 229 states and 235 transitions. Second operand has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:36,592 INFO L93 Difference]: Finished difference Result 314 states and 319 transitions. [2024-11-22 23:09:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:09:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-22 23:09:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:36,595 INFO L225 Difference]: With dead ends: 314 [2024-11-22 23:09:36,595 INFO L226 Difference]: Without dead ends: 313 [2024-11-22 23:09:36,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:36,596 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 141 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:36,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 713 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-22 23:09:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 229. [2024-11-22 23:09:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6277372262773722) internal successors, (223), 221 states have internal predecessors, (223), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 234 transitions. [2024-11-22 23:09:36,609 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 234 transitions. Word has length 40 [2024-11-22 23:09:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:36,610 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 234 transitions. [2024-11-22 23:09:36,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 234 transitions. [2024-11-22 23:09:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 23:09:36,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:36,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:36,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 23:09:36,613 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_35_0Err33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:36,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:36,614 INFO L85 PathProgramCache]: Analyzing trace with hash -83735595, now seen corresponding path program 1 times [2024-11-22 23:09:36,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:36,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653218316] [2024-11-22 23:09:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:36,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:36,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:36,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653218316] [2024-11-22 23:09:36,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653218316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:36,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:36,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:36,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098787543] [2024-11-22 23:09:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:36,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:36,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:36,816 INFO L87 Difference]: Start difference. First operand 229 states and 234 transitions. Second operand has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:37,157 INFO L93 Difference]: Finished difference Result 313 states and 318 transitions. [2024-11-22 23:09:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:37,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-22 23:09:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:37,160 INFO L225 Difference]: With dead ends: 313 [2024-11-22 23:09:37,160 INFO L226 Difference]: Without dead ends: 312 [2024-11-22 23:09:37,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:37,161 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 135 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:37,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 706 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-22 23:09:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 229. [2024-11-22 23:09:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 137 states have (on average 1.6204379562043796) internal successors, (222), 221 states have internal predecessors, (222), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 233 transitions. [2024-11-22 23:09:37,170 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 233 transitions. Word has length 41 [2024-11-22 23:09:37,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:37,171 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 233 transitions. [2024-11-22 23:09:37,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:09:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 233 transitions. [2024-11-22 23:09:37,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-22 23:09:37,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:37,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:37,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 23:09:37,172 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_35_0Err34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:37,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1969459027, now seen corresponding path program 1 times [2024-11-22 23:09:37,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:37,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739069226] [2024-11-22 23:09:37,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:37,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:37,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739069226] [2024-11-22 23:09:37,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739069226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:37,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:37,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:09:37,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366735178] [2024-11-22 23:09:37,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:37,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:09:37,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:37,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:09:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:09:37,380 INFO L87 Difference]: Start difference. First operand 229 states and 233 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:37,462 INFO L93 Difference]: Finished difference Result 312 states and 316 transitions. [2024-11-22 23:09:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:09:37,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-11-22 23:09:37,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:37,464 INFO L225 Difference]: With dead ends: 312 [2024-11-22 23:09:37,464 INFO L226 Difference]: Without dead ends: 311 [2024-11-22 23:09:37,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:37,465 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 125 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:37,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 934 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:09:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-22 23:09:37,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 230. [2024-11-22 23:09:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 138 states have (on average 1.6159420289855073) internal successors, (223), 222 states have internal predecessors, (223), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 234 transitions. [2024-11-22 23:09:37,473 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 234 transitions. Word has length 49 [2024-11-22 23:09:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:37,473 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 234 transitions. [2024-11-22 23:09:37,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 234 transitions. [2024-11-22 23:09:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-22 23:09:37,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:37,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:37,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 23:09:37,475 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_35_0Err35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:37,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:37,476 INFO L85 PathProgramCache]: Analyzing trace with hash 923687911, now seen corresponding path program 1 times [2024-11-22 23:09:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:37,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318129165] [2024-11-22 23:09:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:37,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318129165] [2024-11-22 23:09:37,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318129165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:37,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:37,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:09:37,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378279901] [2024-11-22 23:09:37,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:37,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:09:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:37,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:09:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:09:37,732 INFO L87 Difference]: Start difference. First operand 230 states and 234 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:37,820 INFO L93 Difference]: Finished difference Result 230 states and 234 transitions. [2024-11-22 23:09:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:09:37,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2024-11-22 23:09:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:37,823 INFO L225 Difference]: With dead ends: 230 [2024-11-22 23:09:37,823 INFO L226 Difference]: Without dead ends: 229 [2024-11-22 23:09:37,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:37,824 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 227 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:37,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 799 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:09:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-22 23:09:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-11-22 23:09:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 138 states have (on average 1.608695652173913) internal successors, (222), 221 states have internal predecessors, (222), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 233 transitions. [2024-11-22 23:09:37,834 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 233 transitions. Word has length 50 [2024-11-22 23:09:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:37,834 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 233 transitions. [2024-11-22 23:09:37,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:37,834 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 233 transitions. [2024-11-22 23:09:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-22 23:09:37,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:37,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:37,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 23:09:37,835 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_27_to_35_0Err36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:37,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1430445611, now seen corresponding path program 1 times [2024-11-22 23:09:37,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:37,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762395371] [2024-11-22 23:09:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:37,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:37,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:37,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762395371] [2024-11-22 23:09:37,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762395371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:37,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:38,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:09:38,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401177001] [2024-11-22 23:09:38,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:38,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:09:38,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:38,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:09:38,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:38,001 INFO L87 Difference]: Start difference. First operand 229 states and 233 transitions. Second operand has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:38,159 INFO L93 Difference]: Finished difference Result 309 states and 314 transitions. [2024-11-22 23:09:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:09:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2024-11-22 23:09:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:38,161 INFO L225 Difference]: With dead ends: 309 [2024-11-22 23:09:38,161 INFO L226 Difference]: Without dead ends: 307 [2024-11-22 23:09:38,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:38,162 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 121 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:38,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 757 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:09:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-22 23:09:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 232. [2024-11-22 23:09:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 224 states have internal predecessors, (225), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:09:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 236 transitions. [2024-11-22 23:09:38,171 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 236 transitions. Word has length 51 [2024-11-22 23:09:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:38,172 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 236 transitions. [2024-11-22 23:09:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 236 transitions. [2024-11-22 23:09:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-22 23:09:38,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:38,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:38,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 23:09:38,173 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:38,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:38,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1394239704, now seen corresponding path program 1 times [2024-11-22 23:09:38,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:38,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637365119] [2024-11-22 23:09:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:38,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:38,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:38,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637365119] [2024-11-22 23:09:38,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637365119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:38,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:38,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:09:38,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440714338] [2024-11-22 23:09:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:38,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:09:38,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:38,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:09:38,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:09:38,326 INFO L87 Difference]: Start difference. First operand 232 states and 236 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:09:38,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:38,550 INFO L93 Difference]: Finished difference Result 309 states and 314 transitions. [2024-11-22 23:09:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:09:38,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2024-11-22 23:09:38,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:38,552 INFO L225 Difference]: With dead ends: 309 [2024-11-22 23:09:38,553 INFO L226 Difference]: Without dead ends: 299 [2024-11-22 23:09:38,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:09:38,554 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 157 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:38,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 468 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:38,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-22 23:09:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 245. [2024-11-22 23:09:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 153 states have (on average 1.5490196078431373) internal successors, (237), 235 states have internal predecessors, (237), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 23:09:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 249 transitions. [2024-11-22 23:09:38,563 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 249 transitions. Word has length 52 [2024-11-22 23:09:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:38,564 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 249 transitions. [2024-11-22 23:09:38,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:09:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 249 transitions. [2024-11-22 23:09:38,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 23:09:38,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:38,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:38,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 23:09:38,565 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_27_to_35_0Err38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:38,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash -268690345, now seen corresponding path program 1 times [2024-11-22 23:09:38,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:38,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766011971] [2024-11-22 23:09:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:38,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728953372] [2024-11-22 23:09:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:38,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:38,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:38,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:38,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 23:09:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:38,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 23:09:38,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:38,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:38,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:38,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766011971] [2024-11-22 23:09:38,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:38,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728953372] [2024-11-22 23:09:38,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728953372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:38,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 23:09:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24125735] [2024-11-22 23:09:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:38,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 23:09:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 23:09:38,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:38,894 INFO L87 Difference]: Start difference. First operand 245 states and 249 transitions. Second operand has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:39,218 INFO L93 Difference]: Finished difference Result 316 states and 326 transitions. [2024-11-22 23:09:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 23:09:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2024-11-22 23:09:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:39,220 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:39,220 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:39,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:39,221 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 183 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:39,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 725 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 275. [2024-11-22 23:09:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 181 states have (on average 1.5966850828729282) internal successors, (289), 264 states have internal predecessors, (289), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 303 transitions. [2024-11-22 23:09:39,231 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 303 transitions. Word has length 53 [2024-11-22 23:09:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:39,231 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 303 transitions. [2024-11-22 23:09:39,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 303 transitions. [2024-11-22 23:09:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 23:09:39,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:39,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:39,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 23:09:39,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:39,437 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_27_to_35_0Err39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:39,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:39,437 INFO L85 PathProgramCache]: Analyzing trace with hash 260534123, now seen corresponding path program 1 times [2024-11-22 23:09:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:39,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953773481] [2024-11-22 23:09:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:39,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415293149] [2024-11-22 23:09:39,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:39,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:39,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:39,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:39,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 23:09:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:39,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 23:09:39,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:39,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:39,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:39,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:39,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953773481] [2024-11-22 23:09:39,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:39,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415293149] [2024-11-22 23:09:39,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415293149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:39,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:39,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 23:09:39,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698967726] [2024-11-22 23:09:39,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:39,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 23:09:39,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:39,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 23:09:39,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:09:39,731 INFO L87 Difference]: Start difference. First operand 275 states and 303 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:40,010 INFO L93 Difference]: Finished difference Result 316 states and 325 transitions. [2024-11-22 23:09:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 23:09:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2024-11-22 23:09:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:40,012 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:40,012 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:40,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:40,013 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 182 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:40,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 674 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:40,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 276. [2024-11-22 23:09:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 182 states have (on average 1.5934065934065933) internal successors, (290), 265 states have internal predecessors, (290), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 304 transitions. [2024-11-22 23:09:40,052 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 304 transitions. Word has length 54 [2024-11-22 23:09:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:40,052 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 304 transitions. [2024-11-22 23:09:40,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 304 transitions. [2024-11-22 23:09:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 23:09:40,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:40,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:40,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 23:09:40,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 23:09:40,260 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_27_to_35_0Err40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:40,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -513376551, now seen corresponding path program 1 times [2024-11-22 23:09:40,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574486682] [2024-11-22 23:09:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:40,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193389963] [2024-11-22 23:09:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:40,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:40,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:40,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:40,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 23:09:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:40,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 23:09:40,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:40,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:40,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 3 [2024-11-22 23:09:40,566 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 29 treesize of output 13 [2024-11-22 23:09:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:40,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:40,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:40,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574486682] [2024-11-22 23:09:40,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:40,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193389963] [2024-11-22 23:09:40,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193389963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:40,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:40,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 23:09:40,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577415223] [2024-11-22 23:09:40,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:40,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 23:09:40,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:40,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 23:09:40,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-22 23:09:40,586 INFO L87 Difference]: Start difference. First operand 276 states and 304 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:40,862 INFO L93 Difference]: Finished difference Result 316 states and 324 transitions. [2024-11-22 23:09:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 23:09:40,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2024-11-22 23:09:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:40,864 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:40,864 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:40,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 23:09:40,864 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 189 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:40,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 727 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 277. [2024-11-22 23:09:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 183 states have (on average 1.5901639344262295) internal successors, (291), 266 states have internal predecessors, (291), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 305 transitions. [2024-11-22 23:09:40,873 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 305 transitions. Word has length 55 [2024-11-22 23:09:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:40,874 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 305 transitions. [2024-11-22 23:09:40,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 305 transitions. [2024-11-22 23:09:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 23:09:40,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:40,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:40,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 23:09:41,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 23:09:41,079 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_27_to_35_0Err41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:41,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1265196333, now seen corresponding path program 1 times [2024-11-22 23:09:41,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:41,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478174769] [2024-11-22 23:09:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:41,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:41,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746107102] [2024-11-22 23:09:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:41,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:41,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:41,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:41,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 23:09:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:41,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 23:09:41,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:41,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:41,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2024-11-22 23:09:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:41,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:41,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:41,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478174769] [2024-11-22 23:09:41,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746107102] [2024-11-22 23:09:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746107102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:41,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:41,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 23:09:41,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457399762] [2024-11-22 23:09:41,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:41,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 23:09:41,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 23:09:41,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-22 23:09:41,398 INFO L87 Difference]: Start difference. First operand 277 states and 305 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:41,689 INFO L93 Difference]: Finished difference Result 316 states and 323 transitions. [2024-11-22 23:09:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 23:09:41,689 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-11-22 23:09:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:41,691 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:41,691 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:41,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 23:09:41,692 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 186 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:41,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 923 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:09:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 278. [2024-11-22 23:09:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 184 states have (on average 1.5869565217391304) internal successors, (292), 267 states have internal predecessors, (292), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 306 transitions. [2024-11-22 23:09:41,702 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 306 transitions. Word has length 56 [2024-11-22 23:09:41,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:41,702 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 306 transitions. [2024-11-22 23:09:41,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 306 transitions. [2024-11-22 23:09:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 23:09:41,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:41,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:41,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 23:09:41,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:41,908 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_27_to_35_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:41,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:41,908 INFO L85 PathProgramCache]: Analyzing trace with hash 566380891, now seen corresponding path program 1 times [2024-11-22 23:09:41,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:41,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576357317] [2024-11-22 23:09:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:41,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:41,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158722664] [2024-11-22 23:09:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:41,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:41,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:41,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:41,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 23:09:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:42,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 23:09:42,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:42,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:42,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 3 [2024-11-22 23:09:42,305 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 36 treesize of output 16 [2024-11-22 23:09:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:42,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:42,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:42,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576357317] [2024-11-22 23:09:42,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:42,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158722664] [2024-11-22 23:09:42,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158722664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:42,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:42,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 23:09:42,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595810572] [2024-11-22 23:09:42,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:42,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 23:09:42,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 23:09:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:42,334 INFO L87 Difference]: Start difference. First operand 278 states and 306 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:42,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:42,697 INFO L93 Difference]: Finished difference Result 316 states and 322 transitions. [2024-11-22 23:09:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 23:09:42,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2024-11-22 23:09:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:42,699 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:42,699 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:42,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-22 23:09:42,701 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 123 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:42,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 923 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:42,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 279. [2024-11-22 23:09:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 185 states have (on average 1.5837837837837838) internal successors, (293), 268 states have internal predecessors, (293), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 307 transitions. [2024-11-22 23:09:42,719 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 307 transitions. Word has length 57 [2024-11-22 23:09:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:42,720 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 307 transitions. [2024-11-22 23:09:42,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 307 transitions. [2024-11-22 23:09:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 23:09:42,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:42,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:42,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 23:09:42,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:42,925 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_27_to_35_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:42,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash 377938671, now seen corresponding path program 1 times [2024-11-22 23:09:42,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:42,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868248124] [2024-11-22 23:09:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:42,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 23:09:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787563491] [2024-11-22 23:09:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:42,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:09:42,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:09:42,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:09:42,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 23:09:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:09:43,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 23:09:43,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:09:43,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 23:09:43,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2024-11-22 23:09:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:09:43,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:09:43,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:09:43,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868248124] [2024-11-22 23:09:43,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 23:09:43,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787563491] [2024-11-22 23:09:43,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787563491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:09:43,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:09:43,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 23:09:43,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708936516] [2024-11-22 23:09:43,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:09:43,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 23:09:43,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:09:43,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 23:09:43,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:09:43,274 INFO L87 Difference]: Start difference. First operand 279 states and 307 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:09:43,596 INFO L93 Difference]: Finished difference Result 316 states and 321 transitions. [2024-11-22 23:09:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 23:09:43,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-11-22 23:09:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:09:43,598 INFO L225 Difference]: With dead ends: 316 [2024-11-22 23:09:43,598 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 23:09:43,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-22 23:09:43,599 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 186 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:09:43,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 906 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:09:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 23:09:43,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 280. [2024-11-22 23:09:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 186 states have (on average 1.5806451612903225) internal successors, (294), 269 states have internal predecessors, (294), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 23:09:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 308 transitions. [2024-11-22 23:09:43,609 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 308 transitions. Word has length 58 [2024-11-22 23:09:43,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:09:43,609 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 308 transitions. [2024-11-22 23:09:43,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:09:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 308 transitions. [2024-11-22 23:09:43,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 23:09:43,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:09:43,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:09:43,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 23:09:43,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-22 23:09:43,816 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_27_to_35_0Err44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-22 23:09:43,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:09:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1168802851, now seen corresponding path program 1 times [2024-11-22 23:09:43,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:09:43,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302367853] [2024-11-22 23:09:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:09:43,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:09:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat