./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-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 35431d6758accd7fd2ee5ddf2b1a76a0fd5efeada0a27759fb5cb6b7d4ed3c08 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 05:01:33,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 05:01:33,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 05:01:33,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 05:01:33,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 05:01:33,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 05:01:33,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 05:01:33,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 05:01:33,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 05:01:33,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 05:01:33,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 05:01:33,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 05:01:33,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 05:01:33,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 05:01:33,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 05:01:33,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 05:01:33,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 05:01:33,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 05:01:33,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 05:01:33,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 05:01:33,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 05:01:33,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 05:01:33,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 05:01:33,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 05:01:33,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 05:01:33,875 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 05:01:33,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 05:01:33,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 05:01:33,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 05:01:33,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 05:01:33,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 05:01:33,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 05:01:33,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 05:01:33,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 05:01:33,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:01:33,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 05:01:33,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 05:01:33,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 05:01:33,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 05:01:33,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 05:01:33,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 05:01:33,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 05:01:33,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 05:01:33,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 05:01:33,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35431d6758accd7fd2ee5ddf2b1a76a0fd5efeada0a27759fb5cb6b7d4ed3c08 [2024-11-17 05:01:34,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 05:01:34,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 05:01:34,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 05:01:34,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 05:01:34,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 05:01:34,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-ll.c [2024-11-17 05:01:35,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 05:01:35,827 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 05:01:35,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-ll.c [2024-11-17 05:01:35,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e546cdf4/1b3048d9593f4504b8b8287061dc40c2/FLAGc6b9c37f0 [2024-11-17 05:01:36,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e546cdf4/1b3048d9593f4504b8b8287061dc40c2 [2024-11-17 05:01:36,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 05:01:36,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 05:01:36,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 05:01:36,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 05:01:36,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 05:01:36,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbcd504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36, skipping insertion in model container [2024-11-17 05:01:36,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 05:01:36,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:01:36,494 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 05:01:36,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:01:36,540 INFO L204 MainTranslator]: Completed translation [2024-11-17 05:01:36,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36 WrapperNode [2024-11-17 05:01:36,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 05:01:36,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 05:01:36,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 05:01:36,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 05:01:36,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,585 INFO L138 Inliner]: procedures = 16, calls = 64, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2024-11-17 05:01:36,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 05:01:36,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 05:01:36,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 05:01:36,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 05:01:36,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,614 INFO L175 MemorySlicer]: Split 41 memory accesses to 5 slices as follows [2, 4, 5, 27, 3]. 66 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, 2, 2, 2, 1]. [2024-11-17 05:01:36,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 05:01:36,628 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 05:01:36,629 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 05:01:36,629 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 05:01:36,629 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (1/1) ... [2024-11-17 05:01:36,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:01:36,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:36,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 05:01:36,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 05:01:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 05:01:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 05:01:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 05:01:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 05:01:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 05:01:36,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 05:01:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 05:01:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 05:01:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 05:01:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 05:01:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 05:01:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0 [2024-11-17 05:01:36,745 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0 [2024-11-17 05:01:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 05:01:36,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 05:01:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 05:01:36,830 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 05:01:36,832 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 05:01:37,397 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L73: call ULTIMATE.dealloc(main_~#k~0#1.base, main_~#k~0#1.offset);havoc main_~#k~0#1.base, main_~#k~0#1.offset;call ULTIMATE.dealloc(main_~#y~0#1.base, main_~#y~0#1.offset);havoc main_~#y~0#1.base, main_~#y~0#1.offset;call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset;call ULTIMATE.dealloc(main_~#c~0#1.base, main_~#c~0#1.offset);havoc main_~#c~0#1.base, main_~#c~0#1.offset; [2024-11-17 05:01:37,961 INFO L? ?]: Removed 209 outVars from TransFormulas that were not future-live. [2024-11-17 05:01:37,961 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 05:01:37,982 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 05:01:37,982 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 05:01:37,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:01:37 BoogieIcfgContainer [2024-11-17 05:01:37,983 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 05:01:37,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 05:01:37,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 05:01:37,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 05:01:37,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:01:36" (1/3) ... [2024-11-17 05:01:37,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9fe366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:01:37, skipping insertion in model container [2024-11-17 05:01:37,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:36" (2/3) ... [2024-11-17 05:01:37,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9fe366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:01:37, skipping insertion in model container [2024-11-17 05:01:37,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:01:37" (3/3) ... [2024-11-17 05:01:37,996 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps4-ll.c [2024-11-17 05:01:38,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 05:01:38,015 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2024-11-17 05:01:38,072 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 05:01:38,079 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;@6ddf80b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 05:01:38,079 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-17 05:01:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 97 states have (on average 1.6494845360824741) internal successors, (160), 158 states have internal predecessors, (160), 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) [2024-11-17 05:01:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 05:01:38,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:38,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 05:01:38,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_26_to_34_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:38,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:38,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1216175757, now seen corresponding path program 1 times [2024-11-17 05:01:38,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:38,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714143390] [2024-11-17 05:01:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:38,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714143390] [2024-11-17 05:01:38,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714143390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:38,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:38,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143615618] [2024-11-17 05:01:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:38,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:38,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:38,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:38,603 INFO L87 Difference]: Start difference. First operand has 165 states, 97 states have (on average 1.6494845360824741) internal successors, (160), 158 states have internal predecessors, (160), 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 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-11-17 05:01:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:38,968 INFO L93 Difference]: Finished difference Result 423 states and 445 transitions. [2024-11-17 05:01:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 6 [2024-11-17 05:01:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:38,982 INFO L225 Difference]: With dead ends: 423 [2024-11-17 05:01:38,982 INFO L226 Difference]: Without dead ends: 255 [2024-11-17 05:01:38,990 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 [2024-11-17 05:01:38,996 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 214 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:38,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 742 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 05:01:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-17 05:01:39,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 194. [2024-11-17 05:01:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.6428571428571428) internal successors, (207), 186 states have internal predecessors, (207), 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) [2024-11-17 05:01:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 218 transitions. [2024-11-17 05:01:39,066 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 218 transitions. Word has length 6 [2024-11-17 05:01:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:39,066 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 218 transitions. [2024-11-17 05:01:39,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-11-17 05:01:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 218 transitions. [2024-11-17 05:01:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 05:01:39,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:39,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:01:39,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 05:01:39,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_26_to_34_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:39,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1252256360, now seen corresponding path program 1 times [2024-11-17 05:01:39,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:39,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957218114] [2024-11-17 05:01:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:39,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:39,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626324105] [2024-11-17 05:01:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:39,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:39,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:39,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 05:01:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:39,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-17 05:01:39,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:39,296 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 [2024-11-17 05:01:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:39,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:39,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:39,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957218114] [2024-11-17 05:01:39,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:39,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626324105] [2024-11-17 05:01:39,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626324105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:39,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:39,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:39,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378165801] [2024-11-17 05:01:39,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:39,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:39,358 INFO L87 Difference]: Start difference. First operand 194 states and 218 transitions. Second operand has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-17 05:01:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:39,769 INFO L93 Difference]: Finished difference Result 283 states and 288 transitions. [2024-11-17 05:01:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 9 [2024-11-17 05:01:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:39,772 INFO L225 Difference]: With dead ends: 283 [2024-11-17 05:01:39,775 INFO L226 Difference]: Without dead ends: 277 [2024-11-17 05:01:39,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:39,777 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 203 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:39,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 626 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:01:39,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-17 05:01:39,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 194. [2024-11-17 05:01:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5952380952380953) internal successors, (201), 186 states have internal predecessors, (201), 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) [2024-11-17 05:01:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 212 transitions. [2024-11-17 05:01:39,803 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 212 transitions. Word has length 9 [2024-11-17 05:01:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:39,803 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 212 transitions. [2024-11-17 05:01:39,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-17 05:01:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 212 transitions. [2024-11-17 05:01:39,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-17 05:01:39,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:39,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:01:39,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 05:01:40,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:40,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_26_to_34_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:40,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash -676681151, now seen corresponding path program 1 times [2024-11-17 05:01:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:40,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978136968] [2024-11-17 05:01:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:40,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:40,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978136968] [2024-11-17 05:01:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978136968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:40,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:40,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389796606] [2024-11-17 05:01:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:40,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:40,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:40,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:40,434 INFO L87 Difference]: Start difference. First operand 194 states and 212 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2024-11-17 05:01:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:40,906 INFO L93 Difference]: Finished difference Result 249 states and 254 transitions. [2024-11-17 05:01:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 17 [2024-11-17 05:01:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:40,910 INFO L225 Difference]: With dead ends: 249 [2024-11-17 05:01:40,910 INFO L226 Difference]: Without dead ends: 248 [2024-11-17 05:01:40,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:40,911 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 209 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:40,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 711 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:01:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-17 05:01:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 194. [2024-11-17 05:01:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5873015873015872) internal successors, (200), 186 states have internal predecessors, (200), 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) [2024-11-17 05:01:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 211 transitions. [2024-11-17 05:01:40,923 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 211 transitions. Word has length 17 [2024-11-17 05:01:40,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:40,924 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 211 transitions. [2024-11-17 05:01:40,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2024-11-17 05:01:40,924 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 211 transitions. [2024-11-17 05:01:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-17 05:01:40,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:40,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:01:40,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 05:01:40,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_26_to_34_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:40,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash 497720905, now seen corresponding path program 1 times [2024-11-17 05:01:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:40,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137124300] [2024-11-17 05:01:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:40,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:40,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695721948] [2024-11-17 05:01:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:40,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:40,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:40,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:40,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 05:01:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:41,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-17 05:01:41,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:41,105 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 [2024-11-17 05:01:41,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 05:01:41,171 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 15 treesize of output 7 [2024-11-17 05:01:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:41,253 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:41,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137124300] [2024-11-17 05:01:41,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695721948] [2024-11-17 05:01:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695721948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:41,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:41,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:41,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742926802] [2024-11-17 05:01:41,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:41,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:41,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:41,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:41,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:41,256 INFO L87 Difference]: Start difference. First operand 194 states and 211 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2024-11-17 05:01:41,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:41,804 INFO L93 Difference]: Finished difference Result 233 states and 238 transitions. [2024-11-17 05:01:41,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:41,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 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 [2024-11-17 05:01:41,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:41,807 INFO L225 Difference]: With dead ends: 233 [2024-11-17 05:01:41,807 INFO L226 Difference]: Without dead ends: 232 [2024-11-17 05:01:41,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:41,808 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 185 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:41,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 735 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 05:01:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-17 05:01:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 194. [2024-11-17 05:01:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5793650793650793) internal successors, (199), 186 states have internal predecessors, (199), 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) [2024-11-17 05:01:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 210 transitions. [2024-11-17 05:01:41,820 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 210 transitions. Word has length 18 [2024-11-17 05:01:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:41,820 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 210 transitions. [2024-11-17 05:01:41,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2024-11-17 05:01:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 210 transitions. [2024-11-17 05:01:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-17 05:01:41,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:41,821 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] [2024-11-17 05:01:41,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 05:01:42,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-17 05:01:42,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_26_to_34_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:42,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1568423207, now seen corresponding path program 1 times [2024-11-17 05:01:42,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:42,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041307606] [2024-11-17 05:01:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:42,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:42,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041307606] [2024-11-17 05:01:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041307606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:42,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:42,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262128361] [2024-11-17 05:01:42,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:42,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:42,225 INFO L87 Difference]: Start difference. First operand 194 states and 210 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-17 05:01:42,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:42,489 INFO L93 Difference]: Finished difference Result 275 states and 280 transitions. [2024-11-17 05:01:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:42,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 20 [2024-11-17 05:01:42,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:42,491 INFO L225 Difference]: With dead ends: 275 [2024-11-17 05:01:42,492 INFO L226 Difference]: Without dead ends: 269 [2024-11-17 05:01:42,492 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 [2024-11-17 05:01:42,493 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 159 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:42,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 635 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:01:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-17 05:01:42,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 194. [2024-11-17 05:01:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5317460317460319) internal successors, (193), 186 states have internal predecessors, (193), 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) [2024-11-17 05:01:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 204 transitions. [2024-11-17 05:01:42,511 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 204 transitions. Word has length 20 [2024-11-17 05:01:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:42,511 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 204 transitions. [2024-11-17 05:01:42,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-17 05:01:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 204 transitions. [2024-11-17 05:01:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-17 05:01:42,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:42,512 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] [2024-11-17 05:01:42,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 05:01:42,512 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_26_to_34_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:42,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:42,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1490179200, now seen corresponding path program 1 times [2024-11-17 05:01:42,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:42,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770919768] [2024-11-17 05:01:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:42,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:42,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980985332] [2024-11-17 05:01:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:42,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:42,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:42,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 05:01:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:42,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-17 05:01:42,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:42,632 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 [2024-11-17 05:01:42,636 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 [2024-11-17 05:01:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:42,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:42,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770919768] [2024-11-17 05:01:42,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980985332] [2024-11-17 05:01:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980985332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:42,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:42,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 05:01:42,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087705746] [2024-11-17 05:01:42,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:42,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 05:01:42,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 05:01:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:42,846 INFO L87 Difference]: Start difference. First operand 194 states and 204 transitions. Second operand has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 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) [2024-11-17 05:01:43,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:43,225 INFO L93 Difference]: Finished difference Result 226 states and 231 transitions. [2024-11-17 05:01:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:01:43,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 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 [2024-11-17 05:01:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:43,226 INFO L225 Difference]: With dead ends: 226 [2024-11-17 05:01:43,226 INFO L226 Difference]: Without dead ends: 224 [2024-11-17 05:01:43,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-17 05:01:43,227 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 142 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:43,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 746 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 05:01:43,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-17 05:01:43,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 194. [2024-11-17 05:01:43,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5158730158730158) internal successors, (191), 186 states have internal predecessors, (191), 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) [2024-11-17 05:01:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2024-11-17 05:01:43,234 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 28 [2024-11-17 05:01:43,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:43,234 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2024-11-17 05:01:43,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 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) [2024-11-17 05:01:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2024-11-17 05:01:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-17 05:01:43,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:43,235 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] [2024-11-17 05:01:43,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 05:01:43,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:43,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_26_to_34_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:43,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1146662101, now seen corresponding path program 1 times [2024-11-17 05:01:43,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:43,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781665828] [2024-11-17 05:01:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:43,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348417892] [2024-11-17 05:01:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:43,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:43,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:43,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:43,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 05:01:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:43,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-17 05:01:43,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:43,551 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 [2024-11-17 05:01:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:43,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781665828] [2024-11-17 05:01:43,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348417892] [2024-11-17 05:01:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348417892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599878004] [2024-11-17 05:01:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:43,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:43,615 INFO L87 Difference]: Start difference. First operand 194 states and 202 transitions. Second operand has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-17 05:01:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:43,757 INFO L93 Difference]: Finished difference Result 267 states and 272 transitions. [2024-11-17 05:01:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 31 [2024-11-17 05:01:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:43,759 INFO L225 Difference]: With dead ends: 267 [2024-11-17 05:01:43,759 INFO L226 Difference]: Without dead ends: 265 [2024-11-17 05:01:43,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:43,760 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 127 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:43,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 660 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-17 05:01:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 194. [2024-11-17 05:01:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.5) internal successors, (189), 186 states have internal predecessors, (189), 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) [2024-11-17 05:01:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 200 transitions. [2024-11-17 05:01:43,766 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 200 transitions. Word has length 31 [2024-11-17 05:01:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:43,767 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 200 transitions. [2024-11-17 05:01:43,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-17 05:01:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 200 transitions. [2024-11-17 05:01:43,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-17 05:01:43,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:43,768 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] [2024-11-17 05:01:43,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 05:01:43,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:43,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_26_to_34_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:43,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1864313389, now seen corresponding path program 1 times [2024-11-17 05:01:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:43,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895183314] [2024-11-17 05:01:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:43,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848692932] [2024-11-17 05:01:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:43,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:43,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:43,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:43,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 05:01:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:44,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 05:01:44,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:44,091 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 [2024-11-17 05:01:44,096 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 [2024-11-17 05:01:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:44,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:44,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:44,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895183314] [2024-11-17 05:01:44,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:44,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848692932] [2024-11-17 05:01:44,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848692932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:44,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:44,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 05:01:44,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43907804] [2024-11-17 05:01:44,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:44,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 05:01:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:44,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 05:01:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:01:44,374 INFO L87 Difference]: Start difference. First operand 194 states and 200 transitions. Second operand has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2024-11-17 05:01:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:45,415 INFO L93 Difference]: Finished difference Result 222 states and 227 transitions. [2024-11-17 05:01:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 05:01:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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 33 [2024-11-17 05:01:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:45,417 INFO L225 Difference]: With dead ends: 222 [2024-11-17 05:01:45,418 INFO L226 Difference]: Without dead ends: 221 [2024-11-17 05:01:45,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-17 05:01:45,419 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 121 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:45,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 826 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 05:01:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-17 05:01:45,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 194. [2024-11-17 05:01:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.492063492063492) internal successors, (188), 186 states have internal predecessors, (188), 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) [2024-11-17 05:01:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 199 transitions. [2024-11-17 05:01:45,425 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 199 transitions. Word has length 33 [2024-11-17 05:01:45,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:45,425 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 199 transitions. [2024-11-17 05:01:45,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2024-11-17 05:01:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 199 transitions. [2024-11-17 05:01:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-17 05:01:45,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:45,426 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] [2024-11-17 05:01:45,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 05:01:45,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:45,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_26_to_34_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:45,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1959140133, now seen corresponding path program 1 times [2024-11-17 05:01:45,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:45,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049347748] [2024-11-17 05:01:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:45,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [678009766] [2024-11-17 05:01:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:45,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:45,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:45,651 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:45,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 05:01:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:45,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 05:01:45,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:45,739 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 [2024-11-17 05:01:45,742 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 [2024-11-17 05:01:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:46,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:46,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049347748] [2024-11-17 05:01:46,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678009766] [2024-11-17 05:01:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678009766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:46,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:46,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 05:01:46,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822679838] [2024-11-17 05:01:46,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:46,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 05:01:46,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 05:01:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:01:46,808 INFO L87 Difference]: Start difference. First operand 194 states and 199 transitions. Second operand has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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) [2024-11-17 05:01:48,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:48,014 INFO L93 Difference]: Finished difference Result 221 states and 226 transitions. [2024-11-17 05:01:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 05:01:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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 [2024-11-17 05:01:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:48,015 INFO L225 Difference]: With dead ends: 221 [2024-11-17 05:01:48,015 INFO L226 Difference]: Without dead ends: 220 [2024-11-17 05:01:48,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-17 05:01:48,016 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 114 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:48,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 923 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 05:01:48,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-17 05:01:48,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 194. [2024-11-17 05:01:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.4841269841269842) internal successors, (187), 186 states have internal predecessors, (187), 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) [2024-11-17 05:01:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 198 transitions. [2024-11-17 05:01:48,022 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 198 transitions. Word has length 34 [2024-11-17 05:01:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:48,023 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 198 transitions. [2024-11-17 05:01:48,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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) [2024-11-17 05:01:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 198 transitions. [2024-11-17 05:01:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-17 05:01:48,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:48,024 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] [2024-11-17 05:01:48,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-17 05:01:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:48,227 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_26_to_34_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:48,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -250379962, now seen corresponding path program 1 times [2024-11-17 05:01:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362615893] [2024-11-17 05:01:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:48,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 05:01:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:48,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:48,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362615893] [2024-11-17 05:01:48,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362615893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:48,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:48,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:48,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076335403] [2024-11-17 05:01:48,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:48,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:48,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:48,483 INFO L87 Difference]: Start difference. First operand 194 states and 198 transitions. Second operand has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2024-11-17 05:01:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:48,583 INFO L93 Difference]: Finished difference Result 266 states and 270 transitions. [2024-11-17 05:01:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:48,583 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), 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 42 [2024-11-17 05:01:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:48,584 INFO L225 Difference]: With dead ends: 266 [2024-11-17 05:01:48,584 INFO L226 Difference]: Without dead ends: 265 [2024-11-17 05:01:48,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:48,585 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 111 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:48,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 891 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-17 05:01:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 195. [2024-11-17 05:01:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 187 states have internal predecessors, (188), 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) [2024-11-17 05:01:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 199 transitions. [2024-11-17 05:01:48,591 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 199 transitions. Word has length 42 [2024-11-17 05:01:48,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:48,592 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 199 transitions. [2024-11-17 05:01:48,592 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), 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) [2024-11-17 05:01:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 199 transitions. [2024-11-17 05:01:48,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-17 05:01:48,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:48,593 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] [2024-11-17 05:01:48,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 05:01:48,594 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_26_to_34_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:48,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash 828155838, now seen corresponding path program 1 times [2024-11-17 05:01:48,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:48,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877633922] [2024-11-17 05:01:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:48,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:48,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 05:01:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:48,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:48,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877633922] [2024-11-17 05:01:48,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877633922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:48,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:48,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32046481] [2024-11-17 05:01:48,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:48,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:48,867 INFO L87 Difference]: Start difference. First operand 195 states and 199 transitions. Second operand has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-17 05:01:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:48,953 INFO L93 Difference]: Finished difference Result 265 states and 269 transitions. [2024-11-17 05:01:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 43 [2024-11-17 05:01:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:48,955 INFO L225 Difference]: With dead ends: 265 [2024-11-17 05:01:48,956 INFO L226 Difference]: Without dead ends: 264 [2024-11-17 05:01:48,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:48,957 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 108 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:48,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 894 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-17 05:01:48,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 196. [2024-11-17 05:01:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 128 states have (on average 1.4765625) internal successors, (189), 188 states have internal predecessors, (189), 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) [2024-11-17 05:01:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 200 transitions. [2024-11-17 05:01:48,966 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 200 transitions. Word has length 43 [2024-11-17 05:01:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:48,967 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 200 transitions. [2024-11-17 05:01:48,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-17 05:01:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 200 transitions. [2024-11-17 05:01:48,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-17 05:01:48,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:48,968 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] [2024-11-17 05:01:48,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 05:01:48,969 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:48,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:48,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1288884904, now seen corresponding path program 1 times [2024-11-17 05:01:48,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:48,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405159107] [2024-11-17 05:01:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:48,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:48,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843677947] [2024-11-17 05:01:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:48,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:48,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:49,001 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:49,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 05:01:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:49,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 05:01:49,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:49,100 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 [2024-11-17 05:01:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:49,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405159107] [2024-11-17 05:01:49,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843677947] [2024-11-17 05:01:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843677947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:49,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:49,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 05:01:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910034055] [2024-11-17 05:01:49,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:49,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 05:01:49,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:49,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 05:01:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 05:01:49,168 INFO L87 Difference]: Start difference. First operand 196 states and 200 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-11-17 05:01:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:49,303 INFO L93 Difference]: Finished difference Result 257 states and 262 transitions. [2024-11-17 05:01:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 05:01:49,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 45 [2024-11-17 05:01:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:49,306 INFO L225 Difference]: With dead ends: 257 [2024-11-17 05:01:49,306 INFO L226 Difference]: Without dead ends: 255 [2024-11-17 05:01:49,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:49,307 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 99 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:49,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 453 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-17 05:01:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 201. [2024-11-17 05:01:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 132 states have (on average 1.4621212121212122) internal successors, (193), 191 states have internal predecessors, (193), 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) [2024-11-17 05:01:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 205 transitions. [2024-11-17 05:01:49,318 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 205 transitions. Word has length 45 [2024-11-17 05:01:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:49,319 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 205 transitions. [2024-11-17 05:01:49,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-11-17 05:01:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 205 transitions. [2024-11-17 05:01:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-17 05:01:49,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:49,320 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] [2024-11-17 05:01:49,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 05:01:49,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:49,521 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_26_to_34_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:49,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:49,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1288812700, now seen corresponding path program 1 times [2024-11-17 05:01:49,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:49,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673254236] [2024-11-17 05:01:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:49,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 05:01:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:49,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:49,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673254236] [2024-11-17 05:01:49,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673254236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:49,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:49,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:49,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804417330] [2024-11-17 05:01:49,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:49,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:49,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:49,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:49,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:49,694 INFO L87 Difference]: Start difference. First operand 201 states and 205 transitions. Second operand has 6 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-11-17 05:01:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:49,813 INFO L93 Difference]: Finished difference Result 261 states and 266 transitions. [2024-11-17 05:01:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 45 [2024-11-17 05:01:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:49,815 INFO L225 Difference]: With dead ends: 261 [2024-11-17 05:01:49,815 INFO L226 Difference]: Without dead ends: 259 [2024-11-17 05:01:49,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:49,816 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 102 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:49,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 673 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-17 05:01:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 204. [2024-11-17 05:01:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 135 states have (on average 1.451851851851852) internal successors, (196), 194 states have internal predecessors, (196), 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) [2024-11-17 05:01:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 208 transitions. [2024-11-17 05:01:49,823 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 208 transitions. Word has length 45 [2024-11-17 05:01:49,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:49,824 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 208 transitions. [2024-11-17 05:01:49,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-11-17 05:01:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 208 transitions. [2024-11-17 05:01:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-17 05:01:49,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:49,825 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] [2024-11-17 05:01:49,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 05:01:49,825 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:49,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 162585531, now seen corresponding path program 1 times [2024-11-17 05:01:49,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:49,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190898434] [2024-11-17 05:01:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:49,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703895515] [2024-11-17 05:01:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:49,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:49,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:49,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 05:01:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:49,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 05:01:49,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:49,950 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 [2024-11-17 05:01:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:50,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:50,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:50,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190898434] [2024-11-17 05:01:50,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:50,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703895515] [2024-11-17 05:01:50,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703895515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:50,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:50,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 05:01:50,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353742253] [2024-11-17 05:01:50,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:50,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 05:01:50,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 05:01:50,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 05:01:50,016 INFO L87 Difference]: Start difference. First operand 204 states and 208 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-17 05:01:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:50,161 INFO L93 Difference]: Finished difference Result 258 states and 263 transitions. [2024-11-17 05:01:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 05:01:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 48 [2024-11-17 05:01:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:50,163 INFO L225 Difference]: With dead ends: 258 [2024-11-17 05:01:50,163 INFO L226 Difference]: Without dead ends: 256 [2024-11-17 05:01:50,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:50,164 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 89 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:50,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 452 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:50,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-17 05:01:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 207. [2024-11-17 05:01:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 197 states have internal predecessors, (199), 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) [2024-11-17 05:01:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 211 transitions. [2024-11-17 05:01:50,190 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 211 transitions. Word has length 48 [2024-11-17 05:01:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:50,190 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 211 transitions. [2024-11-17 05:01:50,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-17 05:01:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 211 transitions. [2024-11-17 05:01:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-17 05:01:50,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:50,191 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] [2024-11-17 05:01:50,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 05:01:50,392 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,SelfDestructingSolverStorable13 [2024-11-17 05:01:50,392 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_26_to_34_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:50,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1988418015, now seen corresponding path program 1 times [2024-11-17 05:01:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:50,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003480122] [2024-11-17 05:01:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:50,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603531572] [2024-11-17 05:01:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:50,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:50,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:50,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:50,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 05:01:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:50,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-17 05:01:50,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:50,519 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 [2024-11-17 05:01:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:50,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:50,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:50,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003480122] [2024-11-17 05:01:50,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:50,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603531572] [2024-11-17 05:01:50,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603531572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:50,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:50,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 05:01:50,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652819243] [2024-11-17 05:01:50,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:50,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 05:01:50,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 05:01:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:50,656 INFO L87 Difference]: Start difference. First operand 207 states and 211 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-17 05:01:50,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:50,886 INFO L93 Difference]: Finished difference Result 279 states and 287 transitions. [2024-11-17 05:01:50,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:01:50,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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 48 [2024-11-17 05:01:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:50,888 INFO L225 Difference]: With dead ends: 279 [2024-11-17 05:01:50,888 INFO L226 Difference]: Without dead ends: 278 [2024-11-17 05:01:50,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:50,889 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 111 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:50,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 854 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:01:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-17 05:01:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 216. [2024-11-17 05:01:50,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 145 states have (on average 1.4344827586206896) internal successors, (208), 205 states have internal predecessors, (208), 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) [2024-11-17 05:01:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 222 transitions. [2024-11-17 05:01:50,896 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 222 transitions. Word has length 48 [2024-11-17 05:01:50,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:50,896 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 222 transitions. [2024-11-17 05:01:50,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-17 05:01:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 222 transitions. [2024-11-17 05:01:50,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-17 05:01:50,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:50,897 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] [2024-11-17 05:01:50,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 05:01:51,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-17 05:01:51,102 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_26_to_34_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:51,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1511416263, now seen corresponding path program 1 times [2024-11-17 05:01:51,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:51,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092890728] [2024-11-17 05:01:51,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:51,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:51,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272393842] [2024-11-17 05:01:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:51,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:51,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:51,128 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:51,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 05:01:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:51,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 05:01:51,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:51,237 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 [2024-11-17 05:01:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:51,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:51,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:51,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092890728] [2024-11-17 05:01:51,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:51,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272393842] [2024-11-17 05:01:51,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272393842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:51,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:51,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 05:01:51,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643128684] [2024-11-17 05:01:51,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:51,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 05:01:51,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:51,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 05:01:51,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:01:51,351 INFO L87 Difference]: Start difference. First operand 216 states and 222 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 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) [2024-11-17 05:01:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:51,507 INFO L93 Difference]: Finished difference Result 279 states and 286 transitions. [2024-11-17 05:01:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:01:51,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 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 [2024-11-17 05:01:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:51,508 INFO L225 Difference]: With dead ends: 279 [2024-11-17 05:01:51,508 INFO L226 Difference]: Without dead ends: 278 [2024-11-17 05:01:51,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:51,509 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 166 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:51,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 609 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-17 05:01:51,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 217. [2024-11-17 05:01:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 146 states have (on average 1.4315068493150684) internal successors, (209), 206 states have internal predecessors, (209), 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) [2024-11-17 05:01:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 223 transitions. [2024-11-17 05:01:51,519 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 223 transitions. Word has length 49 [2024-11-17 05:01:51,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:51,519 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 223 transitions. [2024-11-17 05:01:51,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 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) [2024-11-17 05:01:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 223 transitions. [2024-11-17 05:01:51,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-17 05:01:51,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:51,520 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] [2024-11-17 05:01:51,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-17 05:01:51,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-17 05:01:51,724 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:51,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1625873657, now seen corresponding path program 1 times [2024-11-17 05:01:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:51,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592689536] [2024-11-17 05:01:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994953998] [2024-11-17 05:01:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:51,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:51,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:51,743 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:51,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 05:01:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:51,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 05:01:51,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:51,839 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 [2024-11-17 05:01:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:51,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:51,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592689536] [2024-11-17 05:01:51,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994953998] [2024-11-17 05:01:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994953998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:51,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:51,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768204362] [2024-11-17 05:01:51,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:51,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:51,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:51,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:51,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:51,926 INFO L87 Difference]: Start difference. First operand 217 states and 223 transitions. Second operand has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:01:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:52,043 INFO L93 Difference]: Finished difference Result 263 states and 267 transitions. [2024-11-17 05:01:52,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:52,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-11-17 05:01:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:52,045 INFO L225 Difference]: With dead ends: 263 [2024-11-17 05:01:52,045 INFO L226 Difference]: Without dead ends: 261 [2024-11-17 05:01:52,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:52,046 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 90 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:52,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 484 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 05:01:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-17 05:01:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2024-11-17 05:01:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 146 states have (on average 1.417808219178082) internal successors, (207), 206 states have internal predecessors, (207), 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) [2024-11-17 05:01:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 221 transitions. [2024-11-17 05:01:52,053 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 221 transitions. Word has length 50 [2024-11-17 05:01:52,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:52,053 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 221 transitions. [2024-11-17 05:01:52,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:01:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 221 transitions. [2024-11-17 05:01:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-17 05:01:52,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:52,054 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] [2024-11-17 05:01:52,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-17 05:01:52,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-17 05:01:52,255 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_26_to_34_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:52,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:52,256 INFO L85 PathProgramCache]: Analyzing trace with hash -772080873, now seen corresponding path program 1 times [2024-11-17 05:01:52,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:52,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77790372] [2024-11-17 05:01:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:52,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:52,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680810598] [2024-11-17 05:01:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:52,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:52,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:52,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:52,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-17 05:01:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:52,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 05:01:52,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:52,384 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 [2024-11-17 05:01:52,489 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 [2024-11-17 05:01:52,520 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 [2024-11-17 05:01:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:52,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:52,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77790372] [2024-11-17 05:01:52,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680810598] [2024-11-17 05:01:52,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680810598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:52,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:52,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 05:01:52,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250703172] [2024-11-17 05:01:52,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:52,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 05:01:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:52,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 05:01:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:01:52,537 INFO L87 Difference]: Start difference. First operand 217 states and 221 transitions. Second operand has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 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) [2024-11-17 05:01:52,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:52,799 INFO L93 Difference]: Finished difference Result 277 states and 283 transitions. [2024-11-17 05:01:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 05:01:52,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 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 [2024-11-17 05:01:52,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:52,801 INFO L225 Difference]: With dead ends: 277 [2024-11-17 05:01:52,801 INFO L226 Difference]: Without dead ends: 276 [2024-11-17 05:01:52,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-17 05:01:52,802 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 112 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:52,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 892 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:01:52,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-17 05:01:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 219. [2024-11-17 05:01:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 148 states have (on average 1.412162162162162) internal successors, (209), 208 states have internal predecessors, (209), 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) [2024-11-17 05:01:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 223 transitions. [2024-11-17 05:01:52,809 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 223 transitions. Word has length 51 [2024-11-17 05:01:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:52,809 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 223 transitions. [2024-11-17 05:01:52,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 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) [2024-11-17 05:01:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 223 transitions. [2024-11-17 05:01:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-17 05:01:52,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:52,810 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] [2024-11-17 05:01:52,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-17 05:01:53,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-17 05:01:53,015 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_26_to_34_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:53,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:53,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1835296766, now seen corresponding path program 1 times [2024-11-17 05:01:53,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:53,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249536273] [2024-11-17 05:01:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125383675] [2024-11-17 05:01:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:53,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:53,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:53,034 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:53,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 05:01:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:53,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-17 05:01:53,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:53,154 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 [2024-11-17 05:01:53,247 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 [2024-11-17 05:01:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:53,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:01:53,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:53,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249536273] [2024-11-17 05:01:53,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:53,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125383675] [2024-11-17 05:01:53,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125383675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:53,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:53,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 05:01:53,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399723725] [2024-11-17 05:01:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:53,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 05:01:53,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 05:01:53,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:01:53,287 INFO L87 Difference]: Start difference. First operand 219 states and 223 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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) [2024-11-17 05:01:53,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:53,523 INFO L93 Difference]: Finished difference Result 277 states and 282 transitions. [2024-11-17 05:01:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 05:01:53,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 52 [2024-11-17 05:01:53,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:53,524 INFO L225 Difference]: With dead ends: 277 [2024-11-17 05:01:53,524 INFO L226 Difference]: Without dead ends: 276 [2024-11-17 05:01:53,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-17 05:01:53,525 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 165 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:53,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 723 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:01:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-17 05:01:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 220. [2024-11-17 05:01:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 149 states have (on average 1.4093959731543624) internal successors, (210), 209 states have internal predecessors, (210), 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) [2024-11-17 05:01:53,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 224 transitions. [2024-11-17 05:01:53,544 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 224 transitions. Word has length 52 [2024-11-17 05:01:53,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:53,544 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 224 transitions. [2024-11-17 05:01:53,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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) [2024-11-17 05:01:53,544 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 224 transitions. [2024-11-17 05:01:53,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-17 05:01:53,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:53,545 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] [2024-11-17 05:01:53,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-17 05:01:53,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:53,750 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_26_to_34_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:53,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1511364868, now seen corresponding path program 1 times [2024-11-17 05:01:53,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:53,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879828284] [2024-11-17 05:01:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:53,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:53,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 05:01:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:53,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879828284] [2024-11-17 05:01:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879828284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:53,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:53,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126858767] [2024-11-17 05:01:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:53,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:53,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:53,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:53,923 INFO L87 Difference]: Start difference. First operand 220 states and 224 transitions. Second operand has 7 states, 5 states have (on average 10.2) internal successors, (51), 6 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) [2024-11-17 05:01:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:54,369 INFO L93 Difference]: Finished difference Result 227 states and 231 transitions. [2024-11-17 05:01:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.2) internal successors, (51), 6 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 [2024-11-17 05:01:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:54,371 INFO L225 Difference]: With dead ends: 227 [2024-11-17 05:01:54,371 INFO L226 Difference]: Without dead ends: 226 [2024-11-17 05:01:54,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:54,372 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 66 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:54,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 866 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:01:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-17 05:01:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222. [2024-11-17 05:01:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 151 states have (on average 1.403973509933775) internal successors, (212), 211 states have internal predecessors, (212), 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) [2024-11-17 05:01:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 226 transitions. [2024-11-17 05:01:54,379 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 226 transitions. Word has length 54 [2024-11-17 05:01:54,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:54,379 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 226 transitions. [2024-11-17 05:01:54,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.2) internal successors, (51), 6 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) [2024-11-17 05:01:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 226 transitions. [2024-11-17 05:01:54,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-17 05:01:54,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:54,380 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] [2024-11-17 05:01:54,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-17 05:01:54,381 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_26_to_34_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:54,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:54,381 INFO L85 PathProgramCache]: Analyzing trace with hash 392329396, now seen corresponding path program 1 times [2024-11-17 05:01:54,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:54,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479664200] [2024-11-17 05:01:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:54,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:54,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 05:01:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:54,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:54,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479664200] [2024-11-17 05:01:54,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479664200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:54,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:54,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:01:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899232841] [2024-11-17 05:01:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:54,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:01:54,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:54,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:01:54,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:01:54,819 INFO L87 Difference]: Start difference. First operand 222 states and 226 transitions. Second operand has 7 states, 5 states have (on average 10.4) internal successors, (52), 6 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) [2024-11-17 05:01:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:55,650 INFO L93 Difference]: Finished difference Result 226 states and 230 transitions. [2024-11-17 05:01:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:01:55,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.4) internal successors, (52), 6 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 [2024-11-17 05:01:55,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:55,652 INFO L225 Difference]: With dead ends: 226 [2024-11-17 05:01:55,652 INFO L226 Difference]: Without dead ends: 225 [2024-11-17 05:01:55,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 05:01:55,653 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 66 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:55,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 774 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 05:01:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-17 05:01:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2024-11-17 05:01:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 152 states have (on average 1.4013157894736843) internal successors, (213), 212 states have internal predecessors, (213), 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) [2024-11-17 05:01:55,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 227 transitions. [2024-11-17 05:01:55,659 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 227 transitions. Word has length 55 [2024-11-17 05:01:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:55,659 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 227 transitions. [2024-11-17 05:01:55,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.4) internal successors, (52), 6 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) [2024-11-17 05:01:55,660 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 227 transitions. [2024-11-17 05:01:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-17 05:01:55,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:55,660 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:01:55,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-17 05:01:55,661 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:55,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:55,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1876008011, now seen corresponding path program 1 times [2024-11-17 05:01:55,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831427677] [2024-11-17 05:01:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:55,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:55,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:01:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:55,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-17 05:01:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:55,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-17 05:01:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 05:01:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831427677] [2024-11-17 05:01:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831427677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:01:55,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:01:55,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:01:55,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570791076] [2024-11-17 05:01:55,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:01:55,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:01:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:55,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:01:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:55,848 INFO L87 Difference]: Start difference. First operand 223 states and 227 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:01:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:01:56,268 INFO L93 Difference]: Finished difference Result 269 states and 278 transitions. [2024-11-17 05:01:56,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:01:56,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2024-11-17 05:01:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:01:56,270 INFO L225 Difference]: With dead ends: 269 [2024-11-17 05:01:56,270 INFO L226 Difference]: Without dead ends: 267 [2024-11-17 05:01:56,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:01:56,271 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 126 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:01:56,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 486 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:01:56,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-17 05:01:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 226. [2024-11-17 05:01:56,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 155 states have (on average 1.3935483870967742) internal successors, (216), 214 states have internal predecessors, (216), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-17 05:01:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 230 transitions. [2024-11-17 05:01:56,279 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 230 transitions. Word has length 58 [2024-11-17 05:01:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:01:56,279 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 230 transitions. [2024-11-17 05:01:56,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:01:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 230 transitions. [2024-11-17 05:01:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-17 05:01:56,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:01:56,280 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:01:56,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 05:01:56,280 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_26_to_34_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:01:56,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:01:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 829099563, now seen corresponding path program 1 times [2024-11-17 05:01:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:01:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345532127] [2024-11-17 05:01:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:01:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:01:56,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515659623] [2024-11-17 05:01:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:01:56,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:01:56,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:56,307 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:01:56,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 05:01:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:01:56,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-17 05:01:56,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:01:56,427 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 [2024-11-17 05:01:56,431 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 [2024-11-17 05:01:56,643 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 [2024-11-17 05:01:56,740 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 [2024-11-17 05:01:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:56,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:01:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:01:57,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:01:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345532127] [2024-11-17 05:01:57,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:01:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515659623] [2024-11-17 05:01:57,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515659623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 05:01:57,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 05:01:57,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2024-11-17 05:01:57,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127872661] [2024-11-17 05:01:57,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 05:01:57,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 05:01:57,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:01:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 05:01:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-17 05:01:57,311 INFO L87 Difference]: Start difference. First operand 226 states and 230 transitions. Second operand has 23 states, 20 states have (on average 5.55) internal successors, (111), 19 states have internal predecessors, (111), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:02:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:03,741 INFO L93 Difference]: Finished difference Result 445 states and 455 transitions. [2024-11-17 05:02:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-17 05:02:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.55) internal successors, (111), 19 states have internal predecessors, (111), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2024-11-17 05:02:03,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:03,744 INFO L225 Difference]: With dead ends: 445 [2024-11-17 05:02:03,744 INFO L226 Difference]: Without dead ends: 440 [2024-11-17 05:02:03,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=264, Invalid=1296, Unknown=0, NotChecked=0, Total=1560 [2024-11-17 05:02:03,745 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 766 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:03,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 2140 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-17 05:02:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-17 05:02:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 320. [2024-11-17 05:02:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 241 states have (on average 1.4605809128630705) internal successors, (352), 302 states have internal predecessors, (352), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 378 transitions. [2024-11-17 05:02:03,758 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 378 transitions. Word has length 60 [2024-11-17 05:02:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:03,758 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 378 transitions. [2024-11-17 05:02:03,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.55) internal successors, (111), 19 states have internal predecessors, (111), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:02:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 378 transitions. [2024-11-17 05:02:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-17 05:02:03,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:03,759 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:03,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-17 05:02:03,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:03,964 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:03,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2040221961, now seen corresponding path program 1 times [2024-11-17 05:02:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:03,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244455310] [2024-11-17 05:02:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:03,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620459234] [2024-11-17 05:02:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:03,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:03,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:03,989 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:03,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-17 05:02:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:04,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 05:02:04,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:04,124 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 [2024-11-17 05:02:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:04,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:02:04,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:04,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244455310] [2024-11-17 05:02:04,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:04,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620459234] [2024-11-17 05:02:04,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620459234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:02:04,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:02:04,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:02:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557599593] [2024-11-17 05:02:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:02:04,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:02:04,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:04,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:02:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:02:04,219 INFO L87 Difference]: Start difference. First operand 320 states and 378 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:04,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:04,521 INFO L93 Difference]: Finished difference Result 367 states and 424 transitions. [2024-11-17 05:02:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:02:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2024-11-17 05:02:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:04,523 INFO L225 Difference]: With dead ends: 367 [2024-11-17 05:02:04,523 INFO L226 Difference]: Without dead ends: 361 [2024-11-17 05:02:04,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:02:04,524 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 157 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:04,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 551 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 166 Invalid, 7 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 05:02:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-17 05:02:04,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 329. [2024-11-17 05:02:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.444) internal successors, (361), 311 states have internal predecessors, (361), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 387 transitions. [2024-11-17 05:02:04,540 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 387 transitions. Word has length 61 [2024-11-17 05:02:04,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:04,540 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 387 transitions. [2024-11-17 05:02:04,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:04,540 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 387 transitions. [2024-11-17 05:02:04,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-17 05:02:04,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:04,541 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:04,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-17 05:02:04,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:04,741 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting func_to_recursive_line_26_to_34_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:04,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:04,742 INFO L85 PathProgramCache]: Analyzing trace with hash -651713872, now seen corresponding path program 1 times [2024-11-17 05:02:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:04,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195373063] [2024-11-17 05:02:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:04,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:04,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167577635] [2024-11-17 05:02:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:04,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:04,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:04,763 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:04,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-17 05:02:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:04,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-17 05:02:04,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:04,895 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 [2024-11-17 05:02:04,996 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 [2024-11-17 05:02:05,035 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 22 treesize of output 10 [2024-11-17 05:02:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:05,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:05,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195373063] [2024-11-17 05:02:05,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167577635] [2024-11-17 05:02:05,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167577635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:05,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:05,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-17 05:02:05,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196532928] [2024-11-17 05:02:05,530 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:05,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 05:02:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 05:02:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-17 05:02:05,531 INFO L87 Difference]: Start difference. First operand 329 states and 387 transitions. Second operand has 10 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:05,940 INFO L93 Difference]: Finished difference Result 384 states and 418 transitions. [2024-11-17 05:02:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 05:02:05,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-17 05:02:05,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:05,942 INFO L225 Difference]: With dead ends: 384 [2024-11-17 05:02:05,942 INFO L226 Difference]: Without dead ends: 383 [2024-11-17 05:02:05,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-17 05:02:05,943 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 294 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:05,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 794 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:02:05,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-17 05:02:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 329. [2024-11-17 05:02:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.44) internal successors, (360), 311 states have internal predecessors, (360), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 386 transitions. [2024-11-17 05:02:05,954 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 386 transitions. Word has length 63 [2024-11-17 05:02:05,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:05,954 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 386 transitions. [2024-11-17 05:02:05,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 386 transitions. [2024-11-17 05:02:05,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 05:02:05,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:05,955 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:05,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-17 05:02:06,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-17 05:02:06,160 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting func_to_recursive_line_26_to_34_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:06,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1271706568, now seen corresponding path program 1 times [2024-11-17 05:02:06,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:06,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417594966] [2024-11-17 05:02:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031117673] [2024-11-17 05:02:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:06,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:06,189 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:06,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-17 05:02:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:06,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-17 05:02:06,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:06,321 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 [2024-11-17 05:02:06,446 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 [2024-11-17 05:02:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:06,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:11,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:11,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417594966] [2024-11-17 05:02:11,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:11,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031117673] [2024-11-17 05:02:11,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031117673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:11,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:11,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-17 05:02:11,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401956626] [2024-11-17 05:02:11,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:11,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 05:02:11,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 05:02:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=223, Unknown=1, NotChecked=0, Total=272 [2024-11-17 05:02:11,678 INFO L87 Difference]: Start difference. First operand 329 states and 386 transitions. Second operand has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:12,203 INFO L93 Difference]: Finished difference Result 383 states and 417 transitions. [2024-11-17 05:02:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 05:02:12,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-17 05:02:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:12,205 INFO L225 Difference]: With dead ends: 383 [2024-11-17 05:02:12,205 INFO L226 Difference]: Without dead ends: 382 [2024-11-17 05:02:12,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=84, Invalid=335, Unknown=1, NotChecked=0, Total=420 [2024-11-17 05:02:12,206 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 245 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:12,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 1290 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:02:12,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-17 05:02:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 329. [2024-11-17 05:02:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.436) internal successors, (359), 311 states have internal predecessors, (359), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 385 transitions. [2024-11-17 05:02:12,217 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 385 transitions. Word has length 64 [2024-11-17 05:02:12,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:12,217 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 385 transitions. [2024-11-17 05:02:12,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 385 transitions. [2024-11-17 05:02:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-17 05:02:12,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:12,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:12,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-17 05:02:12,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-17 05:02:12,423 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_26_to_34_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:12,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1955663706, now seen corresponding path program 1 times [2024-11-17 05:02:12,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:12,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950842670] [2024-11-17 05:02:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:12,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944664] [2024-11-17 05:02:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:12,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:12,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:12,444 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:12,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-17 05:02:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:12,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-17 05:02:12,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:12,576 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 [2024-11-17 05:02:12,673 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 [2024-11-17 05:02:12,740 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 [2024-11-17 05:02:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:12,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:13,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950842670] [2024-11-17 05:02:13,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944664] [2024-11-17 05:02:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:13,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:13,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-17 05:02:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107951104] [2024-11-17 05:02:13,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:13,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 05:02:13,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:13,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 05:02:13,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-17 05:02:13,910 INFO L87 Difference]: Start difference. First operand 329 states and 385 transitions. Second operand has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:14,399 INFO L93 Difference]: Finished difference Result 382 states and 416 transitions. [2024-11-17 05:02:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 05:02:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2024-11-17 05:02:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:14,402 INFO L225 Difference]: With dead ends: 382 [2024-11-17 05:02:14,402 INFO L226 Difference]: Without dead ends: 381 [2024-11-17 05:02:14,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-17 05:02:14,403 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 238 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:14,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1143 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:02:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-17 05:02:14,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 329. [2024-11-17 05:02:14,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.432) internal successors, (358), 311 states have internal predecessors, (358), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 384 transitions. [2024-11-17 05:02:14,417 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 384 transitions. Word has length 66 [2024-11-17 05:02:14,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:14,417 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 384 transitions. [2024-11-17 05:02:14,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 384 transitions. [2024-11-17 05:02:14,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-17 05:02:14,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:14,418 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:14,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-17 05:02:14,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-17 05:02:14,623 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting func_to_recursive_line_26_to_34_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:14,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:14,623 INFO L85 PathProgramCache]: Analyzing trace with hash -496032627, now seen corresponding path program 1 times [2024-11-17 05:02:14,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:14,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241014414] [2024-11-17 05:02:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:14,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375756503] [2024-11-17 05:02:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:14,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:14,655 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:14,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-17 05:02:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:14,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-17 05:02:14,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:14,781 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 [2024-11-17 05:02:14,897 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 [2024-11-17 05:02:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:14,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:20,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241014414] [2024-11-17 05:02:20,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375756503] [2024-11-17 05:02:20,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375756503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:20,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:20,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-17 05:02:20,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644992171] [2024-11-17 05:02:20,493 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:20,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 05:02:20,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 05:02:20,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=284, Unknown=1, NotChecked=0, Total=342 [2024-11-17 05:02:20,495 INFO L87 Difference]: Start difference. First operand 329 states and 384 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:21,231 INFO L93 Difference]: Finished difference Result 381 states and 415 transitions. [2024-11-17 05:02:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 05:02:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2024-11-17 05:02:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:21,232 INFO L225 Difference]: With dead ends: 381 [2024-11-17 05:02:21,233 INFO L226 Difference]: Without dead ends: 380 [2024-11-17 05:02:21,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=106, Invalid=445, Unknown=1, NotChecked=0, Total=552 [2024-11-17 05:02:21,233 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 237 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:21,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1285 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:02:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-17 05:02:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 329. [2024-11-17 05:02:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.428) internal successors, (357), 311 states have internal predecessors, (357), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 383 transitions. [2024-11-17 05:02:21,244 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 383 transitions. Word has length 67 [2024-11-17 05:02:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:21,245 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 383 transitions. [2024-11-17 05:02:21,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 383 transitions. [2024-11-17 05:02:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 05:02:21,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:21,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:21,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-17 05:02:21,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:21,447 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:21,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:21,447 INFO L85 PathProgramCache]: Analyzing trace with hash -653525918, now seen corresponding path program 1 times [2024-11-17 05:02:21,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:21,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995218084] [2024-11-17 05:02:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:21,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:02:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:21,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-17 05:02:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:21,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-17 05:02:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 05:02:21,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:21,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995218084] [2024-11-17 05:02:21,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995218084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:02:21,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:02:21,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:02:21,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564308449] [2024-11-17 05:02:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:02:21,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:02:21,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:02:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:02:21,876 INFO L87 Difference]: Start difference. First operand 329 states and 383 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:22,398 INFO L93 Difference]: Finished difference Result 356 states and 414 transitions. [2024-11-17 05:02:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:02:22,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 69 [2024-11-17 05:02:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:22,400 INFO L225 Difference]: With dead ends: 356 [2024-11-17 05:02:22,400 INFO L226 Difference]: Without dead ends: 355 [2024-11-17 05:02:22,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:02:22,401 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 134 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:22,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 490 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 05:02:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-17 05:02:22,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 330. [2024-11-17 05:02:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 251 states have (on average 1.4262948207171315) internal successors, (358), 312 states have internal predecessors, (358), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 384 transitions. [2024-11-17 05:02:22,411 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 384 transitions. Word has length 69 [2024-11-17 05:02:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:22,412 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 384 transitions. [2024-11-17 05:02:22,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 384 transitions. [2024-11-17 05:02:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 05:02:22,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:22,413 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:22,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-17 05:02:22,413 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting func_to_recursive_line_26_to_34_0Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:22,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash 54018955, now seen corresponding path program 1 times [2024-11-17 05:02:22,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:22,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898156410] [2024-11-17 05:02:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:22,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345876518] [2024-11-17 05:02:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:22,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:22,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:22,443 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:22,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-17 05:02:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:22,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-17 05:02:22,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:22,589 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 [2024-11-17 05:02:22,742 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 [2024-11-17 05:02:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:22,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898156410] [2024-11-17 05:02:41,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345876518] [2024-11-17 05:02:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345876518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:41,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-17 05:02:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353000854] [2024-11-17 05:02:41,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:41,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 05:02:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 05:02:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=383, Unknown=4, NotChecked=0, Total=462 [2024-11-17 05:02:41,035 INFO L87 Difference]: Start difference. First operand 330 states and 384 transitions. Second operand has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:41,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:41,648 INFO L93 Difference]: Finished difference Result 379 states and 413 transitions. [2024-11-17 05:02:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 05:02:41,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2024-11-17 05:02:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:41,650 INFO L225 Difference]: With dead ends: 379 [2024-11-17 05:02:41,650 INFO L226 Difference]: Without dead ends: 378 [2024-11-17 05:02:41,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=146, Invalid=606, Unknown=4, NotChecked=0, Total=756 [2024-11-17 05:02:41,651 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 256 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:41,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1254 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 05:02:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-17 05:02:41,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 330. [2024-11-17 05:02:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 251 states have (on average 1.4223107569721116) internal successors, (357), 312 states have internal predecessors, (357), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 383 transitions. [2024-11-17 05:02:41,661 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 383 transitions. Word has length 69 [2024-11-17 05:02:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:41,662 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 383 transitions. [2024-11-17 05:02:41,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 383 transitions. [2024-11-17 05:02:41,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-17 05:02:41,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:41,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:41,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-17 05:02:41,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:41,867 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:41,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:41,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1215533025, now seen corresponding path program 1 times [2024-11-17 05:02:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:41,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52353077] [2024-11-17 05:02:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:41,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1798370700] [2024-11-17 05:02:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:41,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:41,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:41,899 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:41,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-17 05:02:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:42,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 05:02:42,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:42,015 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 [2024-11-17 05:02:42,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 05:02:42,217 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 15 treesize of output 7 [2024-11-17 05:02:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:42,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:02:42,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52353077] [2024-11-17 05:02:42,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798370700] [2024-11-17 05:02:42,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798370700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:02:42,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:02:42,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:02:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410148522] [2024-11-17 05:02:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:02:42,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:02:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:02:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:02:42,281 INFO L87 Difference]: Start difference. First operand 330 states and 383 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:42,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:42,812 INFO L93 Difference]: Finished difference Result 360 states and 412 transitions. [2024-11-17 05:02:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 05:02:42,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2024-11-17 05:02:42,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:42,813 INFO L225 Difference]: With dead ends: 360 [2024-11-17 05:02:42,813 INFO L226 Difference]: Without dead ends: 359 [2024-11-17 05:02:42,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-17 05:02:42,814 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 177 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:42,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 569 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 05:02:42,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-17 05:02:42,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 331. [2024-11-17 05:02:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 252 states have (on average 1.4206349206349207) internal successors, (358), 313 states have internal predecessors, (358), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 384 transitions. [2024-11-17 05:02:42,824 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 384 transitions. Word has length 70 [2024-11-17 05:02:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:42,824 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 384 transitions. [2024-11-17 05:02:42,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 05:02:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 384 transitions. [2024-11-17 05:02:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-17 05:02:42,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:42,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:42,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-17 05:02:43,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:43,026 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting func_to_recursive_line_26_to_34_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:43,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:43,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1674587715, now seen corresponding path program 1 times [2024-11-17 05:02:43,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:43,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078975262] [2024-11-17 05:02:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:43,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295125235] [2024-11-17 05:02:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:43,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:43,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:43,049 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:43,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-17 05:02:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:43,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-17 05:02:43,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:43,178 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 [2024-11-17 05:02:43,295 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 [2024-11-17 05:02:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:43,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:45,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:45,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078975262] [2024-11-17 05:02:45,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:45,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295125235] [2024-11-17 05:02:45,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295125235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:02:45,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:02:45,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-17 05:02:45,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364001126] [2024-11-17 05:02:45,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:45,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 05:02:45,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:45,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 05:02:45,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-11-17 05:02:45,776 INFO L87 Difference]: Start difference. First operand 331 states and 384 transitions. Second operand has 14 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:02:46,806 INFO L93 Difference]: Finished difference Result 377 states and 411 transitions. [2024-11-17 05:02:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 05:02:46,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2024-11-17 05:02:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:02:46,808 INFO L225 Difference]: With dead ends: 377 [2024-11-17 05:02:46,808 INFO L226 Difference]: Without dead ends: 376 [2024-11-17 05:02:46,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-11-17 05:02:46,809 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 295 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 05:02:46,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1087 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 05:02:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-17 05:02:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 331. [2024-11-17 05:02:46,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 252 states have (on average 1.4166666666666667) internal successors, (357), 313 states have internal predecessors, (357), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-17 05:02:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 383 transitions. [2024-11-17 05:02:46,824 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 383 transitions. Word has length 70 [2024-11-17 05:02:46,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:02:46,824 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 383 transitions. [2024-11-17 05:02:46,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:02:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 383 transitions. [2024-11-17 05:02:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 05:02:46,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:02:46,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:02:46,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-17 05:02:47,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:47,026 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting func_to_recursive_line_26_to_34_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-17 05:02:47,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:02:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 372611721, now seen corresponding path program 1 times [2024-11-17 05:02:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:02:47,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085218749] [2024-11-17 05:02:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:47,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:02:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:02:47,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860671848] [2024-11-17 05:02:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:02:47,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:02:47,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:02:47,053 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:02:47,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-17 05:02:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:02:47,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-17 05:02:47,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:02:47,212 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 [2024-11-17 05:02:47,216 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 [2024-11-17 05:02:47,438 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 [2024-11-17 05:02:47,555 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 [2024-11-17 05:02:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:47,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:02:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:02:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:02:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085218749] [2024-11-17 05:02:48,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:02:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860671848] [2024-11-17 05:02:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860671848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 05:02:48,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 05:02:48,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2024-11-17 05:02:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289929083] [2024-11-17 05:02:48,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 05:02:48,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-17 05:02:48,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:02:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-17 05:02:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-11-17 05:02:48,501 INFO L87 Difference]: Start difference. First operand 331 states and 383 transitions. Second operand has 29 states, 26 states have (on average 5.115384615384615) internal successors, (133), 25 states have internal predecessors, (133), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:02:55,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-17 05:02:59,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-17 05:03:03,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []