./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-023d838-m [2024-11-10 19:42:37,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:42:37,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:42:37,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:42:37,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:42:37,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:42:37,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:42:37,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:42:37,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:42:37,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:42:37,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:42:37,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:42:37,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:42:37,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:42:37,771 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:42:37,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:42:37,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:42:37,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:42:37,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:42:37,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:42:37,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:42:37,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:42:37,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:42:37,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:42:37,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:42:37,776 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:42:37,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:42:37,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:42:37,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:42:37,777 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:42:37,777 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:42:37,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:42:37,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:42:37,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:42:37,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:37,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:42:37,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:42:37,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:42:37,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:42:37,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:42:37,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:42:37,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:42:37,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:42:37,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:42:37,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35431d6758accd7fd2ee5ddf2b1a76a0fd5efeada0a27759fb5cb6b7d4ed3c08 [2024-11-10 19:42:38,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:42:38,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:42:38,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:42:38,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:42:38,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:42:38,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-ll.c [2024-11-10 19:42:39,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:42:39,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:42:39,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps4-ll.c [2024-11-10 19:42:39,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c2c118da/483f7d8a2dfc489e871f20ba31926260/FLAGbe8d21495 [2024-11-10 19:42:39,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c2c118da/483f7d8a2dfc489e871f20ba31926260 [2024-11-10 19:42:39,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:42:39,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:42:39,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:39,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:42:39,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:42:39,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:39" (1/1) ... [2024-11-10 19:42:39,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4402e2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:39, skipping insertion in model container [2024-11-10 19:42:39,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:39" (1/1) ... [2024-11-10 19:42:39,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:42:39,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:39,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:42:40,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:40,046 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:42:40,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40 WrapperNode [2024-11-10 19:42:40,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:40,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:40,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:42:40,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:42:40,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,089 INFO L138 Inliner]: procedures = 16, calls = 64, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2024-11-10 19:42:40,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:40,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:42:40,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:42:40,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:42:40,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,125 INFO L175 MemorySlicer]: Split 41 memory accesses to 5 slices as follows [2, 3, 27, 5, 4]. 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, 1, 2, 2, 2]. [2024-11-10 19:42:40,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,132 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,132 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:42:40,147 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:42:40,147 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:42:40,147 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:42:40,148 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (1/1) ... [2024-11-10 19:42:40,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:40,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:42:40,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:42:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:42:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:42:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 19:42:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 19:42:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 19:42:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 19:42:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 19:42:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 19:42:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 19:42:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 19:42:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 19:42:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 19:42:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:42:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:42:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 19:42:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 19:42:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 19:42:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 19:42:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 19:42:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0 [2024-11-10 19:42:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0 [2024-11-10 19:42:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:42:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:42:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 19:42:40,364 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:42:40,367 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:42:40,898 INFO L1247 $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; [2024-11-10 19:42:41,398 INFO L? ?]: Removed 209 outVars from TransFormulas that were not future-live. [2024-11-10 19:42:41,399 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:42:41,423 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:42:41,424 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:42:41,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:41 BoogieIcfgContainer [2024-11-10 19:42:41,424 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:42:41,427 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:42:41,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:42:41,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:42:41,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:39" (1/3) ... [2024-11-10 19:42:41,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5a8544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:41, skipping insertion in model container [2024-11-10 19:42:41,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:40" (2/3) ... [2024-11-10 19:42:41,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5a8544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:41, skipping insertion in model container [2024-11-10 19:42:41,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:41" (3/3) ... [2024-11-10 19:42:41,435 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps4-ll.c [2024-11-10 19:42:41,454 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:42:41,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2024-11-10 19:42:41,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:42:41,517 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;@58a80da7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:42:41,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-10 19:42:41,521 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) [2024-11-10 19:42:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 19:42:41,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:41,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 19:42:41,529 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)] === [2024-11-10 19:42:41,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1216175757, now seen corresponding path program 1 times [2024-11-10 19:42:41,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:41,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591818091] [2024-11-10 19:42:41,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:41,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:42,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:42,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591818091] [2024-11-10 19:42:42,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591818091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:42,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:42,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830630154] [2024-11-10 19:42:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:42,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:42,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:42,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:42,072 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) [2024-11-10 19:42:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:42,583 INFO L93 Difference]: Finished difference Result 423 states and 445 transitions. [2024-11-10 19:42:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:42,585 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 [2024-11-10 19:42:42,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:42,592 INFO L225 Difference]: With dead ends: 423 [2024-11-10 19:42:42,593 INFO L226 Difference]: Without dead ends: 255 [2024-11-10 19:42:42,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:42,599 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 214 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:42,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 742 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:42:42,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-10 19:42:42,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 194. [2024-11-10 19:42:42,642 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) [2024-11-10 19:42:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 218 transitions. [2024-11-10 19:42:42,647 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 218 transitions. Word has length 6 [2024-11-10 19:42:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:42,647 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 218 transitions. [2024-11-10 19:42:42,648 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) [2024-11-10 19:42:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 218 transitions. [2024-11-10 19:42:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-10 19:42:42,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:42,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:42,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:42:42,651 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)] === [2024-11-10 19:42:42,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1252256360, now seen corresponding path program 1 times [2024-11-10 19:42:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147815185] [2024-11-10 19:42:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:42,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847185066] [2024-11-10 19:42:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:42,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:42,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:42,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:42:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:42,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:42:42,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:42,838 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 [2024-11-10 19:42:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:42,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:42,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:42,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147815185] [2024-11-10 19:42:42,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:42,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847185066] [2024-11-10 19:42:42,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847185066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:42,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:42,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834896989] [2024-11-10 19:42:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:42,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:42,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:42,935 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) [2024-11-10 19:42:43,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:43,356 INFO L93 Difference]: Finished difference Result 283 states and 288 transitions. [2024-11-10 19:42:43,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:43,356 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 [2024-11-10 19:42:43,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:43,358 INFO L225 Difference]: With dead ends: 283 [2024-11-10 19:42:43,358 INFO L226 Difference]: Without dead ends: 277 [2024-11-10 19:42:43,359 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 [2024-11-10 19:42:43,360 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 [2024-11-10 19:42:43,360 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] [2024-11-10 19:42:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-10 19:42:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 194. [2024-11-10 19:42:43,373 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) [2024-11-10 19:42:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 212 transitions. [2024-11-10 19:42:43,374 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 212 transitions. Word has length 9 [2024-11-10 19:42:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:43,375 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 212 transitions. [2024-11-10 19:42:43,375 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) [2024-11-10 19:42:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 212 transitions. [2024-11-10 19:42:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-10 19:42:43,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:43,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:43,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 19:42:43,580 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 [2024-11-10 19:42:43,581 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)] === [2024-11-10 19:42:43,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:43,582 INFO L85 PathProgramCache]: Analyzing trace with hash -676681151, now seen corresponding path program 1 times [2024-11-10 19:42:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949330868] [2024-11-10 19:42:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949330868] [2024-11-10 19:42:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949330868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:44,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778408385] [2024-11-10 19:42:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:44,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:44,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:44,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:44,196 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) [2024-11-10 19:42:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:44,845 INFO L93 Difference]: Finished difference Result 249 states and 254 transitions. [2024-11-10 19:42:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:44,846 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 [2024-11-10 19:42:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:44,847 INFO L225 Difference]: With dead ends: 249 [2024-11-10 19:42:44,848 INFO L226 Difference]: Without dead ends: 248 [2024-11-10 19:42:44,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:44,849 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 209 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:44,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 711 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:42:44,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-10 19:42:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 194. [2024-11-10 19:42:44,862 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) [2024-11-10 19:42:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 211 transitions. [2024-11-10 19:42:44,864 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 211 transitions. Word has length 17 [2024-11-10 19:42:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:44,864 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 211 transitions. [2024-11-10 19:42:44,864 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) [2024-11-10 19:42:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 211 transitions. [2024-11-10 19:42:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 19:42:44,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:44,865 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:44,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 19:42:44,865 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)] === [2024-11-10 19:42:44,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 497720905, now seen corresponding path program 1 times [2024-11-10 19:42:44,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:44,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979109913] [2024-11-10 19:42:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:44,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066928099] [2024-11-10 19:42:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:44,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:44,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:44,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:44,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 19:42:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:44,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-10 19:42:44,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:44,987 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 [2024-11-10 19:42:44,993 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 [2024-11-10 19:42:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:45,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979109913] [2024-11-10 19:42:45,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066928099] [2024-11-10 19:42:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066928099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:45,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:45,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242251197] [2024-11-10 19:42:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:45,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:45,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:45,129 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) [2024-11-10 19:42:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:45,646 INFO L93 Difference]: Finished difference Result 233 states and 238 transitions. [2024-11-10 19:42:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:45,647 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 [2024-11-10 19:42:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:45,648 INFO L225 Difference]: With dead ends: 233 [2024-11-10 19:42:45,648 INFO L226 Difference]: Without dead ends: 232 [2024-11-10 19:42:45,649 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 [2024-11-10 19:42:45,650 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 179 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:45,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 749 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:42:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-10 19:42:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 194. [2024-11-10 19:42:45,665 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) [2024-11-10 19:42:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 210 transitions. [2024-11-10 19:42:45,666 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 210 transitions. Word has length 18 [2024-11-10 19:42:45,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:45,667 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 210 transitions. [2024-11-10 19:42:45,667 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) [2024-11-10 19:42:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 210 transitions. [2024-11-10 19:42:45,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-10 19:42:45,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:45,668 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] [2024-11-10 19:42:45,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 19:42:45,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 19:42:45,872 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)] === [2024-11-10 19:42:45,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1568423207, now seen corresponding path program 1 times [2024-11-10 19:42:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:45,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592070204] [2024-11-10 19:42:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:46,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:46,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592070204] [2024-11-10 19:42:46,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592070204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:46,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:46,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:46,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132967574] [2024-11-10 19:42:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:46,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:46,010 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) [2024-11-10 19:42:46,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:46,254 INFO L93 Difference]: Finished difference Result 275 states and 280 transitions. [2024-11-10 19:42:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:46,255 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 [2024-11-10 19:42:46,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:46,256 INFO L225 Difference]: With dead ends: 275 [2024-11-10 19:42:46,256 INFO L226 Difference]: Without dead ends: 269 [2024-11-10 19:42:46,256 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 [2024-11-10 19:42:46,257 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 [2024-11-10 19:42:46,257 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] [2024-11-10 19:42:46,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-10 19:42:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 194. [2024-11-10 19:42:46,268 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) [2024-11-10 19:42:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 204 transitions. [2024-11-10 19:42:46,269 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 204 transitions. Word has length 20 [2024-11-10 19:42:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:46,270 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 204 transitions. [2024-11-10 19:42:46,270 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) [2024-11-10 19:42:46,270 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 204 transitions. [2024-11-10 19:42:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-10 19:42:46,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:46,271 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] [2024-11-10 19:42:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 19:42:46,271 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)] === [2024-11-10 19:42:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:46,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1490179200, now seen corresponding path program 1 times [2024-11-10 19:42:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142369027] [2024-11-10 19:42:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:46,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875971332] [2024-11-10 19:42:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:46,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:46,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:46,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:46,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 19:42:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:46,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-10 19:42:46,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:46,378 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 [2024-11-10 19:42:46,383 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 [2024-11-10 19:42:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:46,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:46,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:46,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142369027] [2024-11-10 19:42:46,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875971332] [2024-11-10 19:42:46,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875971332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:46,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:46,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:42:46,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402801608] [2024-11-10 19:42:46,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:46,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:42:46,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:42:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:46,563 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) [2024-11-10 19:42:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:46,967 INFO L93 Difference]: Finished difference Result 226 states and 231 transitions. [2024-11-10 19:42:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:46,968 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 [2024-11-10 19:42:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:46,970 INFO L225 Difference]: With dead ends: 226 [2024-11-10 19:42:46,970 INFO L226 Difference]: Without dead ends: 224 [2024-11-10 19:42:46,970 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 [2024-11-10 19:42:46,971 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 [2024-11-10 19:42:46,971 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] [2024-11-10 19:42:46,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-10 19:42:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 194. [2024-11-10 19:42:46,982 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) [2024-11-10 19:42:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2024-11-10 19:42:46,984 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 28 [2024-11-10 19:42:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:46,984 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2024-11-10 19:42:46,984 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) [2024-11-10 19:42:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2024-11-10 19:42:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-10 19:42:46,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:46,986 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] [2024-11-10 19:42:47,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 19:42:47,186 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 [2024-11-10 19:42:47,186 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)] === [2024-11-10 19:42:47,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1146662101, now seen corresponding path program 1 times [2024-11-10 19:42:47,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:47,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678314221] [2024-11-10 19:42:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:47,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:47,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234387709] [2024-11-10 19:42:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:47,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:47,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:47,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:47,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 19:42:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:47,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:42:47,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:47,300 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 [2024-11-10 19:42:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:47,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678314221] [2024-11-10 19:42:47,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234387709] [2024-11-10 19:42:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234387709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142513536] [2024-11-10 19:42:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:47,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:47,371 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) [2024-11-10 19:42:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:47,506 INFO L93 Difference]: Finished difference Result 267 states and 272 transitions. [2024-11-10 19:42:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:47,507 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 [2024-11-10 19:42:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:47,508 INFO L225 Difference]: With dead ends: 267 [2024-11-10 19:42:47,508 INFO L226 Difference]: Without dead ends: 265 [2024-11-10 19:42:47,509 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 [2024-11-10 19:42:47,510 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 [2024-11-10 19:42:47,510 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] [2024-11-10 19:42:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-10 19:42:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 194. [2024-11-10 19:42:47,522 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) [2024-11-10 19:42:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 200 transitions. [2024-11-10 19:42:47,524 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 200 transitions. Word has length 31 [2024-11-10 19:42:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:47,525 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 200 transitions. [2024-11-10 19:42:47,525 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) [2024-11-10 19:42:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 200 transitions. [2024-11-10 19:42:47,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-10 19:42:47,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:47,526 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] [2024-11-10 19:42:47,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:47,730 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 [2024-11-10 19:42:47,731 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)] === [2024-11-10 19:42:47,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1864313389, now seen corresponding path program 1 times [2024-11-10 19:42:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973068314] [2024-11-10 19:42:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076992270] [2024-11-10 19:42:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:47,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:47,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:47,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:47,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 19:42:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:47,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 19:42:47,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:47,838 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 [2024-11-10 19:42:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:48,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:48,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973068314] [2024-11-10 19:42:48,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076992270] [2024-11-10 19:42:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076992270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:48,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:48,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:42:48,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961989963] [2024-11-10 19:42:48,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:48,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:42:48,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:48,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:42:48,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:48,016 INFO L87 Difference]: Start difference. First operand 194 states and 200 transitions. Second operand has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 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) [2024-11-10 19:42:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:48,622 INFO L93 Difference]: Finished difference Result 265 states and 270 transitions. [2024-11-10 19:42:48,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 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 [2024-11-10 19:42:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:48,624 INFO L225 Difference]: With dead ends: 265 [2024-11-10 19:42:48,624 INFO L226 Difference]: Without dead ends: 264 [2024-11-10 19:42:48,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:42:48,625 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 128 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:48,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 630 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:42:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-10 19:42:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 194. [2024-11-10 19:42:48,633 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) [2024-11-10 19:42:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 199 transitions. [2024-11-10 19:42:48,634 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 199 transitions. Word has length 33 [2024-11-10 19:42:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:48,634 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 199 transitions. [2024-11-10 19:42:48,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 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) [2024-11-10 19:42:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 199 transitions. [2024-11-10 19:42:48,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-10 19:42:48,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:48,635 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] [2024-11-10 19:42:48,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:48,835 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 [2024-11-10 19:42:48,836 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)] === [2024-11-10 19:42:48,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1959140133, now seen corresponding path program 1 times [2024-11-10 19:42:48,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:48,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115206739] [2024-11-10 19:42:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230193737] [2024-11-10 19:42:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:48,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:48,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:48,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:48,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 19:42:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:48,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-10 19:42:48,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:48,952 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 [2024-11-10 19:42:48,957 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 [2024-11-10 19:42:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:50,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:50,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115206739] [2024-11-10 19:42:50,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230193737] [2024-11-10 19:42:50,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230193737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:50,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:50,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 19:42:50,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213273620] [2024-11-10 19:42:50,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:50,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:42:50,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:50,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:42:50,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:42:50,167 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) [2024-11-10 19:42:51,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:51,637 INFO L93 Difference]: Finished difference Result 221 states and 226 transitions. [2024-11-10 19:42:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:42:51,638 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 [2024-11-10 19:42:51,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:51,639 INFO L225 Difference]: With dead ends: 221 [2024-11-10 19:42:51,639 INFO L226 Difference]: Without dead ends: 220 [2024-11-10 19:42:51,639 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 [2024-11-10 19:42:51,640 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 114 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:51,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 923 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:42:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-10 19:42:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 194. [2024-11-10 19:42:51,645 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) [2024-11-10 19:42:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 198 transitions. [2024-11-10 19:42:51,646 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 198 transitions. Word has length 34 [2024-11-10 19:42:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:51,646 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 198 transitions. [2024-11-10 19:42:51,646 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) [2024-11-10 19:42:51,646 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 198 transitions. [2024-11-10 19:42:51,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 19:42:51,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:51,649 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] [2024-11-10 19:42:51,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:51,851 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 [2024-11-10 19:42:51,851 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)] === [2024-11-10 19:42:51,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash -250379962, now seen corresponding path program 1 times [2024-11-10 19:42:51,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:51,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781820150] [2024-11-10 19:42:51,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 19:42:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781820150] [2024-11-10 19:42:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781820150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:52,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240272321] [2024-11-10 19:42:52,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:52,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:52,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:52,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:52,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:52,167 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) [2024-11-10 19:42:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:52,279 INFO L93 Difference]: Finished difference Result 266 states and 270 transitions. [2024-11-10 19:42:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:52,280 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 [2024-11-10 19:42:52,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:52,281 INFO L225 Difference]: With dead ends: 266 [2024-11-10 19:42:52,282 INFO L226 Difference]: Without dead ends: 265 [2024-11-10 19:42:52,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:52,283 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 111 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:52,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 777 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-10 19:42:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 195. [2024-11-10 19:42:52,289 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) [2024-11-10 19:42:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 199 transitions. [2024-11-10 19:42:52,291 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 199 transitions. Word has length 42 [2024-11-10 19:42:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:52,292 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 199 transitions. [2024-11-10 19:42:52,292 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) [2024-11-10 19:42:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 199 transitions. [2024-11-10 19:42:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-10 19:42:52,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:52,294 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] [2024-11-10 19:42:52,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 19:42:52,295 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)] === [2024-11-10 19:42:52,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash 828155838, now seen corresponding path program 1 times [2024-11-10 19:42:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714650518] [2024-11-10 19:42:52,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:52,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 19:42:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:52,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:52,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714650518] [2024-11-10 19:42:52,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714650518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:52,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:52,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:52,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131862667] [2024-11-10 19:42:52,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:52,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:52,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:52,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:52,525 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) [2024-11-10 19:42:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:52,618 INFO L93 Difference]: Finished difference Result 195 states and 199 transitions. [2024-11-10 19:42:52,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:52,619 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 [2024-11-10 19:42:52,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:52,621 INFO L225 Difference]: With dead ends: 195 [2024-11-10 19:42:52,621 INFO L226 Difference]: Without dead ends: 194 [2024-11-10 19:42:52,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:52,622 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 132 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:52,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 724 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-10 19:42:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-10 19:42:52,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 127 states have (on average 1.4724409448818898) 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) [2024-11-10 19:42:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 198 transitions. [2024-11-10 19:42:52,630 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 198 transitions. Word has length 43 [2024-11-10 19:42:52,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:52,630 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 198 transitions. [2024-11-10 19:42:52,630 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) [2024-11-10 19:42:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 198 transitions. [2024-11-10 19:42:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-10 19:42:52,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:52,632 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] [2024-11-10 19:42:52,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 19:42:52,632 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)] === [2024-11-10 19:42:52,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1288884904, now seen corresponding path program 1 times [2024-11-10 19:42:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:52,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806344300] [2024-11-10 19:42:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:52,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242490808] [2024-11-10 19:42:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:52,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:52,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:52,658 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:52,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 19:42:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 19:42:52,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:52,751 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 [2024-11-10 19:42:52,757 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 [2024-11-10 19:42:52,822 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 7 treesize of output 3 [2024-11-10 19:42:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:52,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:52,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806344300] [2024-11-10 19:42:52,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242490808] [2024-11-10 19:42:52,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242490808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:52,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:52,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:42:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528729475] [2024-11-10 19:42:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:52,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:42:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:42:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:42:52,832 INFO L87 Difference]: Start difference. First operand 194 states and 198 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) [2024-11-10 19:42:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:52,980 INFO L93 Difference]: Finished difference Result 255 states and 260 transitions. [2024-11-10 19:42:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:42:52,981 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 [2024-11-10 19:42:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:52,982 INFO L225 Difference]: With dead ends: 255 [2024-11-10 19:42:52,982 INFO L226 Difference]: Without dead ends: 253 [2024-11-10 19:42:52,982 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 [2024-11-10 19:42:52,983 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 98 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 450 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 [2024-11-10 19:42:52,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 450 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-10 19:42:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 199. [2024-11-10 19:42:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 131 states have (on average 1.4580152671755726) internal successors, (191), 189 states have internal predecessors, (191), 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) [2024-11-10 19:42:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 203 transitions. [2024-11-10 19:42:52,991 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 203 transitions. Word has length 45 [2024-11-10 19:42:52,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:52,991 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 203 transitions. [2024-11-10 19:42:52,991 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) [2024-11-10 19:42:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 203 transitions. [2024-11-10 19:42:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-10 19:42:52,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:52,993 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] [2024-11-10 19:42:53,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 19:42:53,193 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 [2024-11-10 19:42:53,194 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)] === [2024-11-10 19:42:53,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1288812700, now seen corresponding path program 1 times [2024-11-10 19:42:53,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:53,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040598971] [2024-11-10 19:42:53,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:53,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:53,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 19:42:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:53,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:53,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040598971] [2024-11-10 19:42:53,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040598971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:53,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586881846] [2024-11-10 19:42:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:53,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:53,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:53,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:53,367 INFO L87 Difference]: Start difference. First operand 199 states and 203 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) [2024-11-10 19:42:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:53,486 INFO L93 Difference]: Finished difference Result 260 states and 265 transitions. [2024-11-10 19:42:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:53,487 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 [2024-11-10 19:42:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:53,488 INFO L225 Difference]: With dead ends: 260 [2024-11-10 19:42:53,488 INFO L226 Difference]: Without dead ends: 258 [2024-11-10 19:42:53,489 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 [2024-11-10 19:42:53,490 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 102 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 668 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 [2024-11-10 19:42:53,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 668 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-10 19:42:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 203. [2024-11-10 19:42:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 135 states have (on average 1.4444444444444444) internal successors, (195), 193 states have internal predecessors, (195), 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) [2024-11-10 19:42:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 207 transitions. [2024-11-10 19:42:53,499 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 207 transitions. Word has length 45 [2024-11-10 19:42:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:53,500 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 207 transitions. [2024-11-10 19:42:53,500 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) [2024-11-10 19:42:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 207 transitions. [2024-11-10 19:42:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 19:42:53,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:53,503 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] [2024-11-10 19:42:53,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 19:42:53,503 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)] === [2024-11-10 19:42:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 162585531, now seen corresponding path program 1 times [2024-11-10 19:42:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142771532] [2024-11-10 19:42:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:53,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952298289] [2024-11-10 19:42:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:53,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:53,527 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:53,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 19:42:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:53,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 19:42:53,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:53,629 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 [2024-11-10 19:42:53,688 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 [2024-11-10 19:42:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:53,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:53,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:53,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142771532] [2024-11-10 19:42:53,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:53,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952298289] [2024-11-10 19:42:53,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952298289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:53,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:53,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:42:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918348596] [2024-11-10 19:42:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:53,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:42:53,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:42:53,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:42:53,706 INFO L87 Difference]: Start difference. First operand 203 states and 207 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) [2024-11-10 19:42:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:53,843 INFO L93 Difference]: Finished difference Result 257 states and 262 transitions. [2024-11-10 19:42:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:42:53,844 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 [2024-11-10 19:42:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:53,845 INFO L225 Difference]: With dead ends: 257 [2024-11-10 19:42:53,845 INFO L226 Difference]: Without dead ends: 256 [2024-11-10 19:42:53,845 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 [2024-11-10 19:42:53,846 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 89 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:53,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 447 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:53,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-10 19:42:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 205. [2024-11-10 19:42:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 137 states have (on average 1.437956204379562) internal successors, (197), 195 states have internal predecessors, (197), 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) [2024-11-10 19:42:53,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 209 transitions. [2024-11-10 19:42:53,853 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 209 transitions. Word has length 48 [2024-11-10 19:42:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:53,853 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 209 transitions. [2024-11-10 19:42:53,853 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) [2024-11-10 19:42:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 209 transitions. [2024-11-10 19:42:53,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 19:42:53,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:53,854 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] [2024-11-10 19:42:53,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:54,054 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 [2024-11-10 19:42:54,055 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)] === [2024-11-10 19:42:54,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:54,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1988418015, now seen corresponding path program 1 times [2024-11-10 19:42:54,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:54,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133425384] [2024-11-10 19:42:54,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:54,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:54,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868738826] [2024-11-10 19:42:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:54,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:54,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:54,075 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:54,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 19:42:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:54,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 19:42:54,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:54,185 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 [2024-11-10 19:42:54,309 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 36 treesize of output 13 [2024-11-10 19:42:54,313 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 [2024-11-10 19:42:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:54,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:54,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133425384] [2024-11-10 19:42:54,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868738826] [2024-11-10 19:42:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868738826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:54,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:54,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:42:54,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781304965] [2024-11-10 19:42:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:42:54,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:42:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:54,328 INFO L87 Difference]: Start difference. First operand 205 states and 209 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) [2024-11-10 19:42:54,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:54,575 INFO L93 Difference]: Finished difference Result 258 states and 264 transitions. [2024-11-10 19:42:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:42:54,575 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 [2024-11-10 19:42:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:54,576 INFO L225 Difference]: With dead ends: 258 [2024-11-10 19:42:54,577 INFO L226 Difference]: Without dead ends: 256 [2024-11-10 19:42:54,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:42:54,577 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 252 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:54,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 583 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:42:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-10 19:42:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 203. [2024-11-10 19:42:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 137 states have (on average 1.4233576642335766) internal successors, (195), 193 states have internal predecessors, (195), 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) [2024-11-10 19:42:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 207 transitions. [2024-11-10 19:42:54,584 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 207 transitions. Word has length 48 [2024-11-10 19:42:54,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:54,585 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 207 transitions. [2024-11-10 19:42:54,585 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) [2024-11-10 19:42:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 207 transitions. [2024-11-10 19:42:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-10 19:42:54,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:54,586 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] [2024-11-10 19:42:54,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 19:42:54,786 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 [2024-11-10 19:42:54,787 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:42:54,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:54,787 INFO L85 PathProgramCache]: Analyzing trace with hash 745184197, now seen corresponding path program 1 times [2024-11-10 19:42:54,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:54,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132535310] [2024-11-10 19:42:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:54,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:54,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545638597] [2024-11-10 19:42:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:54,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:54,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:54,808 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:54,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 19:42:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:54,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:42:54,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:54,904 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 [2024-11-10 19:42:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:54,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:54,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:54,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132535310] [2024-11-10 19:42:54,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:54,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545638597] [2024-11-10 19:42:54,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545638597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:54,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:54,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:42:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788033343] [2024-11-10 19:42:54,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:54,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:42:54,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:42:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:42:54,974 INFO L87 Difference]: Start difference. First operand 203 states and 207 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-10 19:42:55,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:55,137 INFO L93 Difference]: Finished difference Result 254 states and 259 transitions. [2024-11-10 19:42:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:42:55,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 49 [2024-11-10 19:42:55,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:55,138 INFO L225 Difference]: With dead ends: 254 [2024-11-10 19:42:55,138 INFO L226 Difference]: Without dead ends: 253 [2024-11-10 19:42:55,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:55,139 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 86 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:55,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 442 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-10 19:42:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 204. [2024-11-10 19:42:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 138 states have (on average 1.4202898550724639) 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) [2024-11-10 19:42:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 208 transitions. [2024-11-10 19:42:55,146 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 208 transitions. Word has length 49 [2024-11-10 19:42:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:55,147 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 208 transitions. [2024-11-10 19:42:55,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-10 19:42:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 208 transitions. [2024-11-10 19:42:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-10 19:42:55,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:55,148 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] [2024-11-10 19:42:55,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 19:42:55,348 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 [2024-11-10 19:42:55,348 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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)] === [2024-11-10 19:42:55,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1511416263, now seen corresponding path program 1 times [2024-11-10 19:42:55,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:55,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844874883] [2024-11-10 19:42:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:55,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564031202] [2024-11-10 19:42:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:55,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:55,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:55,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:55,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 19:42:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:55,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 19:42:55,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:55,506 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 [2024-11-10 19:42:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:55,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:55,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844874883] [2024-11-10 19:42:55,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:55,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564031202] [2024-11-10 19:42:55,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564031202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:55,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:55,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:42:55,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884879770] [2024-11-10 19:42:55,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:55,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:42:55,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:55,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:42:55,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:55,624 INFO L87 Difference]: Start difference. First operand 204 states and 208 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) [2024-11-10 19:42:55,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:55,846 INFO L93 Difference]: Finished difference Result 276 states and 283 transitions. [2024-11-10 19:42:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:55,847 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 [2024-11-10 19:42:55,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:55,848 INFO L225 Difference]: With dead ends: 276 [2024-11-10 19:42:55,848 INFO L226 Difference]: Without dead ends: 275 [2024-11-10 19:42:55,848 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 [2024-11-10 19:42:55,849 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 110 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:55,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 754 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:42:55,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-10 19:42:55,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 214. [2024-11-10 19:42:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 146 states have (on average 1.4109589041095891) internal successors, (206), 203 states have internal predecessors, (206), 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) [2024-11-10 19:42:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 220 transitions. [2024-11-10 19:42:55,857 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 220 transitions. Word has length 49 [2024-11-10 19:42:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:55,857 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 220 transitions. [2024-11-10 19:42:55,857 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) [2024-11-10 19:42:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 220 transitions. [2024-11-10 19:42:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-10 19:42:55,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:55,858 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] [2024-11-10 19:42:55,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:56,062 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 [2024-11-10 19:42:56,063 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:42:56,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:56,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1625873657, now seen corresponding path program 1 times [2024-11-10 19:42:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:56,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076182780] [2024-11-10 19:42:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:56,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929111394] [2024-11-10 19:42:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:56,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:56,089 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:56,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 19:42:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:56,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:42:56,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:56,194 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 [2024-11-10 19:42:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:56,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:56,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:56,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076182780] [2024-11-10 19:42:56,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:56,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929111394] [2024-11-10 19:42:56,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929111394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:56,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:56,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:56,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981443716] [2024-11-10 19:42:56,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:56,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:56,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:56,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:56,279 INFO L87 Difference]: Start difference. First operand 214 states and 220 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) [2024-11-10 19:42:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:56,402 INFO L93 Difference]: Finished difference Result 260 states and 264 transitions. [2024-11-10 19:42:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:56,402 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 [2024-11-10 19:42:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:56,403 INFO L225 Difference]: With dead ends: 260 [2024-11-10 19:42:56,404 INFO L226 Difference]: Without dead ends: 258 [2024-11-10 19:42:56,404 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 [2024-11-10 19:42:56,404 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 88 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 474 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 [2024-11-10 19:42:56,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 474 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-10 19:42:56,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 214. [2024-11-10 19:42:56,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 146 states have (on average 1.3972602739726028) internal successors, (204), 203 states have internal predecessors, (204), 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) [2024-11-10 19:42:56,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 218 transitions. [2024-11-10 19:42:56,412 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 218 transitions. Word has length 50 [2024-11-10 19:42:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:56,412 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 218 transitions. [2024-11-10 19:42:56,412 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) [2024-11-10 19:42:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 218 transitions. [2024-11-10 19:42:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-10 19:42:56,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:56,413 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] [2024-11-10 19:42:56,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 19:42:56,613 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 [2024-11-10 19:42:56,613 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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)] === [2024-11-10 19:42:56,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:56,614 INFO L85 PathProgramCache]: Analyzing trace with hash -772080873, now seen corresponding path program 1 times [2024-11-10 19:42:56,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:56,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282875110] [2024-11-10 19:42:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:56,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203011251] [2024-11-10 19:42:56,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:56,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:56,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:56,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:56,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 19:42:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:56,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 19:42:56,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:56,743 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 [2024-11-10 19:42:56,841 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 36 treesize of output 13 [2024-11-10 19:42:56,870 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 [2024-11-10 19:42:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:56,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:56,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282875110] [2024-11-10 19:42:56,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:56,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203011251] [2024-11-10 19:42:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203011251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:56,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:56,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 19:42:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005179133] [2024-11-10 19:42:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:56,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:42:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:56,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:42:56,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:42:56,884 INFO L87 Difference]: Start difference. First operand 214 states and 218 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) [2024-11-10 19:42:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:57,101 INFO L93 Difference]: Finished difference Result 260 states and 265 transitions. [2024-11-10 19:42:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:42:57,102 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 [2024-11-10 19:42:57,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:57,103 INFO L225 Difference]: With dead ends: 260 [2024-11-10 19:42:57,103 INFO L226 Difference]: Without dead ends: 259 [2024-11-10 19:42:57,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:42:57,103 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 326 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:57,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 691 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:42:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-10 19:42:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 213. [2024-11-10 19:42:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 146 states have (on average 1.3904109589041096) internal successors, (203), 202 states have internal predecessors, (203), 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) [2024-11-10 19:42:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 217 transitions. [2024-11-10 19:42:57,112 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 217 transitions. Word has length 51 [2024-11-10 19:42:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:57,113 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 217 transitions. [2024-11-10 19:42:57,113 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) [2024-11-10 19:42:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 217 transitions. [2024-11-10 19:42:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-10 19:42:57,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:57,113 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] [2024-11-10 19:42:57,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:57,314 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 [2024-11-10 19:42:57,314 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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)] === [2024-11-10 19:42:57,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1835296766, now seen corresponding path program 1 times [2024-11-10 19:42:57,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:57,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931489668] [2024-11-10 19:42:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:57,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:57,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445423366] [2024-11-10 19:42:57,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:57,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:57,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:57,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:57,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 19:42:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:57,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-10 19:42:57,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:57,459 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 [2024-11-10 19:42:57,569 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 [2024-11-10 19:42:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:57,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:57,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:57,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931489668] [2024-11-10 19:42:57,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:57,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445423366] [2024-11-10 19:42:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445423366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 19:42:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922516075] [2024-11-10 19:42:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:57,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:42:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:42:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:42:57,604 INFO L87 Difference]: Start difference. First operand 213 states and 217 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) [2024-11-10 19:42:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:57,853 INFO L93 Difference]: Finished difference Result 273 states and 278 transitions. [2024-11-10 19:42:57,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:42:57,853 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 [2024-11-10 19:42:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:57,854 INFO L225 Difference]: With dead ends: 273 [2024-11-10 19:42:57,854 INFO L226 Difference]: Without dead ends: 272 [2024-11-10 19:42:57,855 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 [2024-11-10 19:42:57,855 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 163 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:57,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 793 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:42:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-10 19:42:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 216. [2024-11-10 19:42:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 149 states have (on average 1.3825503355704698) internal successors, (206), 205 states have internal predecessors, (206), 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) [2024-11-10 19:42:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 220 transitions. [2024-11-10 19:42:57,862 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 220 transitions. Word has length 52 [2024-11-10 19:42:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:57,862 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 220 transitions. [2024-11-10 19:42:57,862 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) [2024-11-10 19:42:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 220 transitions. [2024-11-10 19:42:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-10 19:42:57,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:57,863 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] [2024-11-10 19:42:57,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-10 19:42:58,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:58,064 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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)] === [2024-11-10 19:42:58,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1511364868, now seen corresponding path program 1 times [2024-11-10 19:42:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:58,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604524699] [2024-11-10 19:42:58,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:58,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:58,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 19:42:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:58,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:58,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604524699] [2024-11-10 19:42:58,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604524699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:58,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:58,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:58,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809342225] [2024-11-10 19:42:58,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:58,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:58,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:58,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:58,252 INFO L87 Difference]: Start difference. First operand 216 states and 220 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) [2024-11-10 19:42:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:58,738 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2024-11-10 19:42:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:58,739 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 [2024-11-10 19:42:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:58,740 INFO L225 Difference]: With dead ends: 223 [2024-11-10 19:42:58,740 INFO L226 Difference]: Without dead ends: 222 [2024-11-10 19:42:58,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:58,741 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 69 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:58,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 752 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:42:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-10 19:42:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 218. [2024-11-10 19:42:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 151 states have (on average 1.3774834437086092) internal successors, (208), 207 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) [2024-11-10 19:42:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 222 transitions. [2024-11-10 19:42:58,747 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 222 transitions. Word has length 54 [2024-11-10 19:42:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:58,748 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 222 transitions. [2024-11-10 19:42:58,748 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) [2024-11-10 19:42:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 222 transitions. [2024-11-10 19:42:58,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-10 19:42:58,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:58,748 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] [2024-11-10 19:42:58,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 19:42:58,749 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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)] === [2024-11-10 19:42:58,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 392329396, now seen corresponding path program 1 times [2024-11-10 19:42:58,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:58,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55488015] [2024-11-10 19:42:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:58,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 19:42:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:59,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:59,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55488015] [2024-11-10 19:42:59,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55488015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:59,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:59,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449851786] [2024-11-10 19:42:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:59,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:59,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:59,245 INFO L87 Difference]: Start difference. First operand 218 states and 222 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) [2024-11-10 19:42:59,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:59,707 INFO L93 Difference]: Finished difference Result 222 states and 226 transitions. [2024-11-10 19:42:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:59,708 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 [2024-11-10 19:42:59,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:59,709 INFO L225 Difference]: With dead ends: 222 [2024-11-10 19:42:59,709 INFO L226 Difference]: Without dead ends: 221 [2024-11-10 19:42:59,709 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 [2024-11-10 19:42:59,710 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 66 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:59,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 756 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:42:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-10 19:42:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 219. [2024-11-10 19:42:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 152 states have (on average 1.375) 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) [2024-11-10 19:42:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 223 transitions. [2024-11-10 19:42:59,716 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 223 transitions. Word has length 55 [2024-11-10 19:42:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:59,717 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 223 transitions. [2024-11-10 19:42:59,717 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) [2024-11-10 19:42:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 223 transitions. [2024-11-10 19:42:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-10 19:42:59,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:59,718 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] [2024-11-10 19:42:59,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 19:42:59,718 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:42:59,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1876008011, now seen corresponding path program 1 times [2024-11-10 19:42:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:59,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-11-10 19:42:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:59,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:42:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 19:42:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 19:42:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:42:59,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:59,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-11-10 19:42:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355916807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:59,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:59,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806149363] [2024-11-10 19:42:59,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:59,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:59,868 INFO L87 Difference]: Start difference. First operand 219 states and 223 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) [2024-11-10 19:43:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:00,311 INFO L93 Difference]: Finished difference Result 265 states and 274 transitions. [2024-11-10 19:43:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:43:00,312 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 [2024-11-10 19:43:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:00,313 INFO L225 Difference]: With dead ends: 265 [2024-11-10 19:43:00,313 INFO L226 Difference]: Without dead ends: 263 [2024-11-10 19:43:00,313 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 [2024-11-10 19:43:00,314 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:00,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 427 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:43:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-10 19:43:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 222. [2024-11-10 19:43:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 155 states have (on average 1.367741935483871) internal successors, (212), 210 states have internal predecessors, (212), 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) [2024-11-10 19:43:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 226 transitions. [2024-11-10 19:43:00,323 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 226 transitions. Word has length 58 [2024-11-10 19:43:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:00,323 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 226 transitions. [2024-11-10 19:43:00,323 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) [2024-11-10 19:43:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 226 transitions. [2024-11-10 19:43:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 19:43:00,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:00,324 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] [2024-11-10 19:43:00,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 19:43:00,324 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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)] === [2024-11-10 19:43:00,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:00,326 INFO L85 PathProgramCache]: Analyzing trace with hash 829099563, now seen corresponding path program 1 times [2024-11-10 19:43:00,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:00,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928082389] [2024-11-10 19:43:00,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:00,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:00,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378653727] [2024-11-10 19:43:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:00,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:00,348 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:43:00,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 19:43:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:00,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-10 19:43:00,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:00,468 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 [2024-11-10 19:43:00,473 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 [2024-11-10 19:43:00,693 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 [2024-11-10 19:43:00,793 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 [2024-11-10 19:43:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:00,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:01,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928082389] [2024-11-10 19:43:01,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378653727] [2024-11-10 19:43:01,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378653727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:43:01,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:43:01,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2024-11-10 19:43:01,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502291689] [2024-11-10 19:43:01,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:01,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 19:43:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 19:43:01,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-10 19:43:01,333 INFO L87 Difference]: Start difference. First operand 222 states and 226 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) [2024-11-10 19:43:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:08,139 INFO L93 Difference]: Finished difference Result 433 states and 443 transitions. [2024-11-10 19:43:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-10 19:43:08,139 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 [2024-11-10 19:43:08,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:08,140 INFO L225 Difference]: With dead ends: 433 [2024-11-10 19:43:08,140 INFO L226 Difference]: Without dead ends: 430 [2024-11-10 19:43:08,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=264, Invalid=1296, Unknown=0, NotChecked=0, Total=1560 [2024-11-10 19:43:08,142 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 902 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:08,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1827 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-10 19:43:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-10 19:43:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 316. [2024-11-10 19:43:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.4356846473029046) internal successors, (346), 298 states have internal predecessors, (346), 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) [2024-11-10 19:43:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 372 transitions. [2024-11-10 19:43:08,157 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 372 transitions. Word has length 60 [2024-11-10 19:43:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:08,157 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 372 transitions. [2024-11-10 19:43:08,158 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) [2024-11-10 19:43:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 372 transitions. [2024-11-10 19:43:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 19:43:08,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:08,159 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] [2024-11-10 19:43:08,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-10 19:43:08,359 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 [2024-11-10 19:43:08,360 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:43:08,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:08,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2040221961, now seen corresponding path program 1 times [2024-11-10 19:43:08,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:08,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292072200] [2024-11-10 19:43:08,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970045911] [2024-11-10 19:43:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:08,382 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:43:08,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 19:43:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:08,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 19:43:08,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:08,503 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 [2024-11-10 19:43:08,589 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 [2024-11-10 19:43:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:08,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:08,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:08,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292072200] [2024-11-10 19:43:08,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:08,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970045911] [2024-11-10 19:43:08,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970045911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:08,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:08,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:43:08,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623319387] [2024-11-10 19:43:08,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:08,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:43:08,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:43:08,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:43:08,601 INFO L87 Difference]: Start difference. First operand 316 states and 372 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) [2024-11-10 19:43:12,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 19:43:16,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 19:43:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:17,568 INFO L93 Difference]: Finished difference Result 363 states and 418 transitions. [2024-11-10 19:43:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:43:17,568 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 [2024-11-10 19:43:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:17,570 INFO L225 Difference]: With dead ends: 363 [2024-11-10 19:43:17,570 INFO L226 Difference]: Without dead ends: 362 [2024-11-10 19:43:17,571 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 [2024-11-10 19:43:17,575 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 160 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:17,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 523 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 181 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2024-11-10 19:43:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-10 19:43:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 318. [2024-11-10 19:43:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 243 states have (on average 1.4320987654320987) internal successors, (348), 300 states have internal predecessors, (348), 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) [2024-11-10 19:43:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 374 transitions. [2024-11-10 19:43:17,591 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 374 transitions. Word has length 61 [2024-11-10 19:43:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:17,591 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 374 transitions. [2024-11-10 19:43:17,591 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) [2024-11-10 19:43:17,591 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 374 transitions. [2024-11-10 19:43:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-10 19:43:17,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:17,592 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] [2024-11-10 19:43:17,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-10 19:43:17,796 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 [2024-11-10 19:43:17,797 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:43:17,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1177628632, now seen corresponding path program 1 times [2024-11-10 19:43:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821282831] [2024-11-10 19:43:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:17,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808694542] [2024-11-10 19:43:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:17,818 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:43:17,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-10 19:43:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:17,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:43:17,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:17,933 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 [2024-11-10 19:43:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:18,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:18,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821282831] [2024-11-10 19:43:18,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808694542] [2024-11-10 19:43:18,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808694542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:18,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:18,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:43:18,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802499796] [2024-11-10 19:43:18,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:18,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:43:18,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:18,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:43:18,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:43:18,049 INFO L87 Difference]: Start difference. First operand 318 states and 374 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-10 19:43:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:18,403 INFO L93 Difference]: Finished difference Result 362 states and 417 transitions. [2024-11-10 19:43:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:43:18,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 62 [2024-11-10 19:43:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:18,405 INFO L225 Difference]: With dead ends: 362 [2024-11-10 19:43:18,405 INFO L226 Difference]: Without dead ends: 357 [2024-11-10 19:43:18,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:43:18,406 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 186 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:18,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 446 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 153 Invalid, 7 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:43:18,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-10 19:43:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 325. [2024-11-10 19:43:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 250 states have (on average 1.42) internal successors, (355), 307 states have internal predecessors, (355), 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) [2024-11-10 19:43:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 381 transitions. [2024-11-10 19:43:18,422 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 381 transitions. Word has length 62 [2024-11-10 19:43:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:18,423 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 381 transitions. [2024-11-10 19:43:18,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-10 19:43:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 381 transitions. [2024-11-10 19:43:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:43:18,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:18,424 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] [2024-11-10 19:43:18,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-10 19:43:18,627 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 [2024-11-10 19:43:18,628 INFO L396 AbstractCegarLoop]: === Iteration 27 === 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)] === [2024-11-10 19:43:18,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash -651713872, now seen corresponding path program 1 times [2024-11-10 19:43:18,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:18,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915393850] [2024-11-10 19:43:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:18,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663897421] [2024-11-10 19:43:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:18,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:18,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:18,649 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) [2024-11-10 19:43:18,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-10 19:43:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:18,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-10 19:43:18,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:18,765 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 [2024-11-10 19:43:18,865 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 36 treesize of output 13 [2024-11-10 19:43:18,900 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 [2024-11-10 19:43:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:18,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:19,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915393850] [2024-11-10 19:43:19,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663897421] [2024-11-10 19:43:19,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663897421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:43:19,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:43:19,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-10 19:43:19,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003911651] [2024-11-10 19:43:19,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:19,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 19:43:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:19,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 19:43:19,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-10 19:43:19,059 INFO L87 Difference]: Start difference. First operand 325 states and 381 transitions. Second operand has 15 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:43:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:19,685 INFO L93 Difference]: Finished difference Result 351 states and 408 transitions. [2024-11-10 19:43:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:43:19,685 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (6), 5 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 63 [2024-11-10 19:43:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:19,687 INFO L225 Difference]: With dead ends: 351 [2024-11-10 19:43:19,687 INFO L226 Difference]: Without dead ends: 350 [2024-11-10 19:43:19,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-10 19:43:19,688 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 375 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:19,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1099 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:43:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-10 19:43:19,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 326. [2024-11-10 19:43:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 251 states have (on average 1.406374501992032) internal successors, (353), 307 states have internal predecessors, (353), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-10 19:43:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 381 transitions. [2024-11-10 19:43:19,702 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 381 transitions. Word has length 63 [2024-11-10 19:43:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:19,703 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 381 transitions. [2024-11-10 19:43:19,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:43:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 381 transitions. [2024-11-10 19:43:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-10 19:43:19,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:19,704 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] [2024-11-10 19:43:19,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-10 19:43:19,904 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 [2024-11-10 19:43:19,904 INFO L396 AbstractCegarLoop]: === Iteration 28 === 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)] === [2024-11-10 19:43:19,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1271706568, now seen corresponding path program 1 times [2024-11-10 19:43:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961299782] [2024-11-10 19:43:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:19,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468209032] [2024-11-10 19:43:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:19,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:19,928 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) [2024-11-10 19:43:19,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-10 19:43:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:20,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 19:43:20,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:20,064 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 [2024-11-10 19:43:20,191 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 [2024-11-10 19:43:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:20,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:25,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:25,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961299782] [2024-11-10 19:43:25,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:25,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468209032] [2024-11-10 19:43:25,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468209032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:25,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:25,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-10 19:43:25,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725009022] [2024-11-10 19:43:25,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:25,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:43:25,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:25,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:43:25,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-10 19:43:25,031 INFO L87 Difference]: Start difference. First operand 326 states and 381 transitions. Second operand has 10 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2024-11-10 19:43:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:25,508 INFO L93 Difference]: Finished difference Result 379 states and 412 transitions. [2024-11-10 19:43:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 19:43:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 8 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 [2024-11-10 19:43:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:25,510 INFO L225 Difference]: With dead ends: 379 [2024-11-10 19:43:25,510 INFO L226 Difference]: Without dead ends: 378 [2024-11-10 19:43:25,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=78, Invalid=263, Unknown=1, NotChecked=0, Total=342 [2024-11-10 19:43:25,511 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 243 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:25,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1086 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:43:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-10 19:43:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 326. [2024-11-10 19:43:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 251 states have (on average 1.402390438247012) internal successors, (352), 307 states have internal predecessors, (352), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-10 19:43:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 380 transitions. [2024-11-10 19:43:25,523 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 380 transitions. Word has length 64 [2024-11-10 19:43:25,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:25,523 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 380 transitions. [2024-11-10 19:43:25,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2024-11-10 19:43:25,523 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 380 transitions. [2024-11-10 19:43:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 19:43:25,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:25,524 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] [2024-11-10 19:43:25,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-10 19:43:25,728 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 [2024-11-10 19:43:25,729 INFO L396 AbstractCegarLoop]: === Iteration 29 === 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)] === [2024-11-10 19:43:25,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:25,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1955663706, now seen corresponding path program 1 times [2024-11-10 19:43:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:25,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465769567] [2024-11-10 19:43:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:25,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:25,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173960010] [2024-11-10 19:43:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:25,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:25,754 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) [2024-11-10 19:43:25,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-10 19:43:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:25,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-10 19:43:25,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:25,890 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 [2024-11-10 19:43:25,992 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 36 treesize of output 13 [2024-11-10 19:43:26,058 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 [2024-11-10 19:43:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:26,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:26,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:26,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465769567] [2024-11-10 19:43:26,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:26,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173960010] [2024-11-10 19:43:26,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173960010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:43:26,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:43:26,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-11-10 19:43:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214181048] [2024-11-10 19:43:26,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:26,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 19:43:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 19:43:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-10 19:43:26,495 INFO L87 Difference]: Start difference. First operand 326 states and 380 transitions. Second operand has 17 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:43:28,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:28,518 INFO L93 Difference]: Finished difference Result 350 states and 404 transitions. [2024-11-10 19:43:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 19:43:28,518 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (6), 5 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 66 [2024-11-10 19:43:28,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:28,520 INFO L225 Difference]: With dead ends: 350 [2024-11-10 19:43:28,520 INFO L226 Difference]: Without dead ends: 349 [2024-11-10 19:43:28,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:43:28,521 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 454 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:28,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1137 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 19:43:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-10 19:43:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 325. [2024-11-10 19:43:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.3904382470119523) internal successors, (349), 306 states have internal predecessors, (349), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-10 19:43:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 377 transitions. [2024-11-10 19:43:28,533 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 377 transitions. Word has length 66 [2024-11-10 19:43:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:28,533 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 377 transitions. [2024-11-10 19:43:28,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:43:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 377 transitions. [2024-11-10 19:43:28,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 19:43:28,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:28,535 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] [2024-11-10 19:43:28,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-10 19:43:28,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-10 19:43:28,739 INFO L396 AbstractCegarLoop]: === Iteration 30 === 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)] === [2024-11-10 19:43:28,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash -496032627, now seen corresponding path program 1 times [2024-11-10 19:43:28,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:28,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751373101] [2024-11-10 19:43:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:28,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223335493] [2024-11-10 19:43:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:28,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:28,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:28,760 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) [2024-11-10 19:43:28,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-10 19:43:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:28,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-10 19:43:28,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:28,903 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 [2024-11-10 19:43:28,985 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 [2024-11-10 19:43:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:29,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:34,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:34,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751373101] [2024-11-10 19:43:34,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:34,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223335493] [2024-11-10 19:43:34,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223335493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:34,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-10 19:43:34,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254487714] [2024-11-10 19:43:34,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:34,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:43:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:43:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2024-11-10 19:43:34,387 INFO L87 Difference]: Start difference. First operand 325 states and 377 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 9 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) [2024-11-10 19:43:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:34,965 INFO L93 Difference]: Finished difference Result 376 states and 408 transitions. [2024-11-10 19:43:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 19:43:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 9 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 [2024-11-10 19:43:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:34,967 INFO L225 Difference]: With dead ends: 376 [2024-11-10 19:43:34,967 INFO L226 Difference]: Without dead ends: 375 [2024-11-10 19:43:34,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=100, Invalid=361, Unknown=1, NotChecked=0, Total=462 [2024-11-10 19:43:34,968 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 309 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:34,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 852 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:43:34,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-10 19:43:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 325. [2024-11-10 19:43:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.3864541832669324) internal successors, (348), 306 states have internal predecessors, (348), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-10 19:43:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 376 transitions. [2024-11-10 19:43:34,981 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 376 transitions. Word has length 67 [2024-11-10 19:43:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:34,981 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 376 transitions. [2024-11-10 19:43:34,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 9 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) [2024-11-10 19:43:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 376 transitions. [2024-11-10 19:43:34,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 19:43:34,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:34,982 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] [2024-11-10 19:43:35,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-10 19:43:35,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:35,183 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-10 19:43:35,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash -653525918, now seen corresponding path program 1 times [2024-11-10 19:43:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401961594] [2024-11-10 19:43:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:43:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:35,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 19:43:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:35,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 19:43:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:43:35,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401961594] [2024-11-10 19:43:35,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401961594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:35,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:35,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637025357] [2024-11-10 19:43:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:35,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:35,582 INFO L87 Difference]: Start difference. First operand 325 states and 376 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) [2024-11-10 19:43:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:36,547 INFO L93 Difference]: Finished difference Result 352 states and 407 transitions. [2024-11-10 19:43:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:36,547 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 [2024-11-10 19:43:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:36,549 INFO L225 Difference]: With dead ends: 352 [2024-11-10 19:43:36,549 INFO L226 Difference]: Without dead ends: 351 [2024-11-10 19:43:36,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:36,549 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 103 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:36,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 572 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 19:43:36,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-10 19:43:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 326. [2024-11-10 19:43:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 307 states have internal predecessors, (349), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-10 19:43:36,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 377 transitions. [2024-11-10 19:43:36,561 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 377 transitions. Word has length 69 [2024-11-10 19:43:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:36,562 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 377 transitions. [2024-11-10 19:43:36,562 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) [2024-11-10 19:43:36,562 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 377 transitions. [2024-11-10 19:43:36,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 19:43:36,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:36,563 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] [2024-11-10 19:43:36,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 19:43:36,563 INFO L396 AbstractCegarLoop]: === Iteration 32 === 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)] === [2024-11-10 19:43:36,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash 54018955, now seen corresponding path program 1 times [2024-11-10 19:43:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174245509] [2024-11-10 19:43:36,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:36,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:36,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078195207] [2024-11-10 19:43:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:36,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:36,593 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) [2024-11-10 19:43:36,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-10 19:43:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:36,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-10 19:43:36,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:36,723 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 [2024-11-10 19:43:36,864 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 36 treesize of output 13 [2024-11-10 19:43:36,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-10 19:43:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:36,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:44:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:44:02,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:44:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174245509] [2024-11-10 19:44:02,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:44:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078195207] [2024-11-10 19:44:02,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078195207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:44:02,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:44:02,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2024-11-10 19:44:02,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072240129] [2024-11-10 19:44:02,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:44:02,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 19:44:02,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:44:02,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 19:44:02,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=303, Unknown=6, NotChecked=0, Total=380 [2024-11-10 19:44:02,912 INFO L87 Difference]: Start difference. First operand 326 states and 377 transitions. Second operand has 20 states, 17 states have (on average 7.588235294117647) internal successors, (129), 17 states have internal predecessors, (129), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:44:08,666 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 [0, 1]