./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_ps5-ll.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02d2a7ecaeb1f9a3fd2c207ee063800bfd7475435ba7bc7e95648b1704092bfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:42:43,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:42:43,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:42:43,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:42:43,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:42:43,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:42:43,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:42:43,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:42:43,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:42:43,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:42:43,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:42:43,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:42:43,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:42:43,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:42:43,137 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:42:43,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:42:43,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:42:43,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:42:43,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:42:43,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:42:43,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:42:43,142 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:42:43,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:42:43,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:42:43,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:42:43,143 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:42:43,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:42:43,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:42:43,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:42:43,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:43,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:42:43,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:42:43,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:42:43,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:42:43,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:42:43,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:42:43,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:42:43,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:42:43,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:42:43,146 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02d2a7ecaeb1f9a3fd2c207ee063800bfd7475435ba7bc7e95648b1704092bfe [2024-11-10 19:42:43,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:42:43,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:42:43,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:42:43,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:42:43,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:42:43,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c [2024-11-10 19:42:44,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:42:44,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:42:44,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps5-ll.c [2024-11-10 19:42:44,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1653d691/ec0fb26236784afebf8ce9dca19253cd/FLAG3f8f9b510 [2024-11-10 19:42:44,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1653d691/ec0fb26236784afebf8ce9dca19253cd [2024-11-10 19:42:44,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:42:44,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:42:44,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:44,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:42:44,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:42:44,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:44,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a98a6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44, skipping insertion in model container [2024-11-10 19:42:44,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:44,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:42:44,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:44,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:42:44,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:44,975 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:42:44,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44 WrapperNode [2024-11-10 19:42:44,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:44,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:44,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:42:44,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:42:44,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:44,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,008 INFO L138 Inliner]: procedures = 16, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-10 19:42:45,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:45,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:42:45,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:42:45,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:42:45,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,027 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,038 INFO L175 MemorySlicer]: Split 51 memory accesses to 5 slices as follows [2, 4, 36, 5, 4]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 2, 1]. [2024-11-10 19:42:45,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,043 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:42:45,048 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:42:45,048 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:42:45,048 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:42:45,049 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (1/1) ... [2024-11-10 19:42:45,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:45,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:45,078 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 19:42:45,080 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 19:42:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:42:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:42:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 19:42:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:42:45,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 19:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 19:42:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:42:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:42:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2024-11-10 19:42:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2024-11-10 19:42:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 19:42:45,198 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:42:45,199 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:42:45,972 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 19:42:46,548 INFO L? ?]: Removed 370 outVars from TransFormulas that were not future-live. [2024-11-10 19:42:46,548 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:42:46,566 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:42:46,566 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:42:46,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:46 BoogieIcfgContainer [2024-11-10 19:42:46,569 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:42:46,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:42:46,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:42:46,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:42:46,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:44" (1/3) ... [2024-11-10 19:42:46,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40505d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:46, skipping insertion in model container [2024-11-10 19:42:46,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:44" (2/3) ... [2024-11-10 19:42:46,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40505d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:46, skipping insertion in model container [2024-11-10 19:42:46,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:46" (3/3) ... [2024-11-10 19:42:46,577 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps5-ll.c [2024-11-10 19:42:46,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:42:46,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2024-11-10 19:42:46,640 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:42:46,646 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;@276e1387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:42:46,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-11-10 19:42:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 136 states have (on average 1.6470588235294117) internal successors, (224), 221 states have internal predecessors, (224), 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 19:42:46,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:46,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:46,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:46,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_27_to_35_0Err45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash 606079320, now seen corresponding path program 1 times [2024-11-10 19:42:46,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:46,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676777423] [2024-11-10 19:42:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:46,799 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 19:42:46,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:46,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676777423] [2024-11-10 19:42:46,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676777423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:46,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:46,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:42:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993586358] [2024-11-10 19:42:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:46,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:42:46,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:46,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:42:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:46,823 INFO L87 Difference]: Start difference. First operand has 228 states, 136 states have (on average 1.6470588235294117) internal successors, (224), 221 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:46,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:46,868 INFO L93 Difference]: Finished difference Result 452 states and 468 transitions. [2024-11-10 19:42:46,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:42:46,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 19:42:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:46,905 INFO L225 Difference]: With dead ends: 452 [2024-11-10 19:42:46,905 INFO L226 Difference]: Without dead ends: 221 [2024-11-10 19:42:46,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:46,921 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:46,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:42:46,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-10 19:42:46,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-10 19:42:46,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 131 states have (on average 1.6412213740458015) internal successors, (215), 215 states have internal predecessors, (215), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:42:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 223 transitions. [2024-11-10 19:42:46,991 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 223 transitions. Word has length 8 [2024-11-10 19:42:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:46,991 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 223 transitions. [2024-11-10 19:42:46,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 223 transitions. [2024-11-10 19:42:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:46,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:46,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:46,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:42:46,993 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_27_to_35_0Err45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:46,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash 634708471, now seen corresponding path program 1 times [2024-11-10 19:42:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:46,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741517709] [2024-11-10 19:42:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:46,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:47,239 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 19:42:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741517709] [2024-11-10 19:42:47,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741517709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:47,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:47,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844832846] [2024-11-10 19:42:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:47,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:47,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:47,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:47,243 INFO L87 Difference]: Start difference. First operand 221 states and 223 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:47,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:47,819 INFO L93 Difference]: Finished difference Result 408 states and 413 transitions. [2024-11-10 19:42:47,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:47,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 19:42:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:47,821 INFO L225 Difference]: With dead ends: 408 [2024-11-10 19:42:47,821 INFO L226 Difference]: Without dead ends: 398 [2024-11-10 19:42:47,821 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 19:42:47,822 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 321 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:47,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 855 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:42:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-10 19:42:47,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 275. [2024-11-10 19:42:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.5956284153005464) internal successors, (292), 267 states have internal predecessors, (292), 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 19:42:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 303 transitions. [2024-11-10 19:42:47,836 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 303 transitions. Word has length 8 [2024-11-10 19:42:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:47,836 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 303 transitions. [2024-11-10 19:42:47,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 303 transitions. [2024-11-10 19:42:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-10 19:42:47,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:47,837 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] [2024-11-10 19:42:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 19:42:47,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_35_0Err35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:47,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash 176846368, now seen corresponding path program 1 times [2024-11-10 19:42:47,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:47,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111246227] [2024-11-10 19:42:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:48,004 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 19:42:48,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:48,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111246227] [2024-11-10 19:42:48,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111246227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:48,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:48,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:48,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060921050] [2024-11-10 19:42:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:48,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:48,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:48,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:48,008 INFO L87 Difference]: Start difference. First operand 275 states and 303 transitions. Second operand has 6 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 19:42:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:48,353 INFO L93 Difference]: Finished difference Result 398 states and 403 transitions. [2024-11-10 19:42:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:48,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 23 [2024-11-10 19:42:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:48,355 INFO L225 Difference]: With dead ends: 398 [2024-11-10 19:42:48,355 INFO L226 Difference]: Without dead ends: 390 [2024-11-10 19:42:48,355 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 19:42:48,356 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 267 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:48,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 858 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:42:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-10 19:42:48,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 275. [2024-11-10 19:42:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.5519125683060109) internal successors, (284), 267 states have internal predecessors, (284), 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 19:42:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 295 transitions. [2024-11-10 19:42:48,386 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 295 transitions. Word has length 23 [2024-11-10 19:42:48,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:48,387 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 295 transitions. [2024-11-10 19:42:48,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 19:42:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 295 transitions. [2024-11-10 19:42:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-10 19:42:48,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:48,389 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 19:42:48,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 19:42:48,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_35_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:48,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2050125951, now seen corresponding path program 1 times [2024-11-10 19:42:48,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:48,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457650937] [2024-11-10 19:42:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:48,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:48,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932850832] [2024-11-10 19:42:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:48,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:48,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:48,455 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 19:42:48,457 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 19:42:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:48,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 19:42:48,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:48,560 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 19:42:49,305 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 19:42:49,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:49,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:49,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457650937] [2024-11-10 19:42:49,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:49,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932850832] [2024-11-10 19:42:49,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932850832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:49,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:49,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:49,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719632478] [2024-11-10 19:42:49,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:49,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:49,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:49,308 INFO L87 Difference]: Start difference. First operand 275 states and 295 transitions. Second operand has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 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 19:42:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:50,850 INFO L93 Difference]: Finished difference Result 390 states and 395 transitions. [2024-11-10 19:42:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:50,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 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 19:42:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:50,851 INFO L225 Difference]: With dead ends: 390 [2024-11-10 19:42:50,852 INFO L226 Difference]: Without dead ends: 389 [2024-11-10 19:42:50,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 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 19:42:50,854 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 259 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:50,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 974 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 19:42:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-10 19:42:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 275. [2024-11-10 19:42:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.546448087431694) internal successors, (283), 267 states have internal predecessors, (283), 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 19:42:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 294 transitions. [2024-11-10 19:42:50,862 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 294 transitions. Word has length 34 [2024-11-10 19:42:50,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:50,862 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 294 transitions. [2024-11-10 19:42:50,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 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 19:42:50,862 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 294 transitions. [2024-11-10 19:42:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-10 19:42:50,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:50,863 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] [2024-11-10 19:42:50,876 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 19:42:51,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:51,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_35_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:51,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash 870605110, now seen corresponding path program 1 times [2024-11-10 19:42:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:51,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148239509] [2024-11-10 19:42:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:51,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:51,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743555771] [2024-11-10 19:42:51,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:51,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:51,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:51,087 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 19:42:51,088 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 19:42:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:51,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 19:42:51,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:51,161 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 19:42:51,279 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 19:42:51,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:51,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148239509] [2024-11-10 19:42:51,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:51,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743555771] [2024-11-10 19:42:51,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743555771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:51,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:51,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673180492] [2024-11-10 19:42:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:51,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:51,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:51,281 INFO L87 Difference]: Start difference. First operand 275 states and 294 transitions. Second operand has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 19:42:51,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:51,661 INFO L93 Difference]: Finished difference Result 389 states and 394 transitions. [2024-11-10 19:42:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:51,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 35 [2024-11-10 19:42:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:51,665 INFO L225 Difference]: With dead ends: 389 [2024-11-10 19:42:51,665 INFO L226 Difference]: Without dead ends: 388 [2024-11-10 19:42:51,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 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 19:42:51,666 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 242 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:51,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1038 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:42:51,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-10 19:42:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 275. [2024-11-10 19:42:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.540983606557377) internal successors, (282), 267 states have internal predecessors, (282), 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 19:42:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 293 transitions. [2024-11-10 19:42:51,676 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 293 transitions. Word has length 35 [2024-11-10 19:42:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:51,676 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 293 transitions. [2024-11-10 19:42:51,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 19:42:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 293 transitions. [2024-11-10 19:42:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-10 19:42:51,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:51,679 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] [2024-11-10 19:42:51,692 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 19:42:51,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:51,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_27_to_35_0Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:51,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash -867107212, now seen corresponding path program 1 times [2024-11-10 19:42:51,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193608613] [2024-11-10 19:42:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,005 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 19:42:52,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:52,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193608613] [2024-11-10 19:42:52,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193608613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:52,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:52,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:52,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426003409] [2024-11-10 19:42:52,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:52,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:52,008 INFO L87 Difference]: Start difference. First operand 275 states and 293 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 19:42:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:52,292 INFO L93 Difference]: Finished difference Result 388 states and 393 transitions. [2024-11-10 19:42:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 37 [2024-11-10 19:42:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:52,294 INFO L225 Difference]: With dead ends: 388 [2024-11-10 19:42:52,294 INFO L226 Difference]: Without dead ends: 382 [2024-11-10 19:42:52,294 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 19:42:52,294 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 217 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:52,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 874 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:42:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-10 19:42:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 275. [2024-11-10 19:42:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.5081967213114753) internal successors, (276), 267 states have internal predecessors, (276), 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 19:42:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 287 transitions. [2024-11-10 19:42:52,302 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 287 transitions. Word has length 37 [2024-11-10 19:42:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:52,302 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 287 transitions. [2024-11-10 19:42:52,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 19:42:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 287 transitions. [2024-11-10 19:42:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-10 19:42:52,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:52,303 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 19:42:52,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 19:42:52,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_35_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:52,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1034805427, now seen corresponding path program 1 times [2024-11-10 19:42:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594547214] [2024-11-10 19:42:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449721671] [2024-11-10 19:42:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:52,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:52,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:52,322 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 19:42:52,323 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 19:42:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:52,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:42:52,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:52,391 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 19:42:52,561 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 19:42:52,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594547214] [2024-11-10 19:42:52,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449721671] [2024-11-10 19:42:52,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449721671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:52,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:52,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:42:52,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489408565] [2024-11-10 19:42:52,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:52,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:42:52,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:52,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:42:52,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:52,563 INFO L87 Difference]: Start difference. First operand 275 states and 287 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 19:42:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:52,922 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2024-11-10 19:42:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:52,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 45 [2024-11-10 19:42:52,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:52,924 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:42:52,924 INFO L226 Difference]: Without dead ends: 380 [2024-11-10 19:42:52,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:42:52,925 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 214 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:52,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 912 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:42:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-10 19:42:52,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 275. [2024-11-10 19:42:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.4972677595628416) internal successors, (274), 267 states have internal predecessors, (274), 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 19:42:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 285 transitions. [2024-11-10 19:42:52,930 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 285 transitions. Word has length 45 [2024-11-10 19:42:52,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:52,931 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 285 transitions. [2024-11-10 19:42:52,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 19:42:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 285 transitions. [2024-11-10 19:42:52,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 19:42:52,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:52,932 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 19:42:52,946 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 19:42:53,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:53,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_35_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:53,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:53,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1386905973, now seen corresponding path program 1 times [2024-11-10 19:42:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:53,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182706197] [2024-11-10 19:42:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:53,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:53,243 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 19:42:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:53,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182706197] [2024-11-10 19:42:53,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182706197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:53,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:53,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:53,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470986918] [2024-11-10 19:42:53,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:53,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:53,245 INFO L87 Difference]: Start difference. First operand 275 states and 285 transitions. Second operand has 6 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 19:42:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:53,327 INFO L93 Difference]: Finished difference Result 380 states and 384 transitions. [2024-11-10 19:42:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:42:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 48 [2024-11-10 19:42:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:53,329 INFO L225 Difference]: With dead ends: 380 [2024-11-10 19:42:53,329 INFO L226 Difference]: Without dead ends: 378 [2024-11-10 19:42:53,329 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 19:42:53,330 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 206 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:53,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1040 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-10 19:42:53,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 275. [2024-11-10 19:42:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.4863387978142077) internal successors, (272), 267 states have internal predecessors, (272), 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 19:42:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 283 transitions. [2024-11-10 19:42:53,340 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 283 transitions. Word has length 48 [2024-11-10 19:42:53,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:53,340 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 283 transitions. [2024-11-10 19:42:53,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 19:42:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 283 transitions. [2024-11-10 19:42:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-10 19:42:53,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:53,342 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 19:42:53,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 19:42:53,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_35_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:53,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1376782355, now seen corresponding path program 1 times [2024-11-10 19:42:53,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666645720] [2024-11-10 19:42:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:53,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:53,559 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 19:42:53,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:53,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666645720] [2024-11-10 19:42:53,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666645720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:53,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:53,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:53,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071652574] [2024-11-10 19:42:53,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:53,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:53,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:53,561 INFO L87 Difference]: Start difference. First operand 275 states and 283 transitions. Second operand has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 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 19:42:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:57,166 INFO L93 Difference]: Finished difference Result 378 states and 382 transitions. [2024-11-10 19:42:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:57,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 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 50 [2024-11-10 19:42:57,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:57,171 INFO L225 Difference]: With dead ends: 378 [2024-11-10 19:42:57,171 INFO L226 Difference]: Without dead ends: 377 [2024-11-10 19:42:57,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:57,171 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 202 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:57,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1109 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-10 19:42:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-10 19:42:57,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 275. [2024-11-10 19:42:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.4808743169398908) internal successors, (271), 267 states have internal predecessors, (271), 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 19:42:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 282 transitions. [2024-11-10 19:42:57,181 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 282 transitions. Word has length 50 [2024-11-10 19:42:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:57,182 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 282 transitions. [2024-11-10 19:42:57,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 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 19:42:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 282 transitions. [2024-11-10 19:42:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-10 19:42:57,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:57,183 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 19:42:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 19:42:57,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_35_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -269419832, now seen corresponding path program 1 times [2024-11-10 19:42:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258207460] [2024-11-10 19:42:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:57,406 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 19:42:57,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258207460] [2024-11-10 19:42:57,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258207460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:57,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:57,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:57,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272834596] [2024-11-10 19:42:57,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:57,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:57,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:57,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:57,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:57,408 INFO L87 Difference]: Start difference. First operand 275 states and 282 transitions. Second operand has 7 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 19:42:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:58,741 INFO L93 Difference]: Finished difference Result 377 states and 381 transitions. [2024-11-10 19:42:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 51 [2024-11-10 19:42:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:58,743 INFO L225 Difference]: With dead ends: 377 [2024-11-10 19:42:58,743 INFO L226 Difference]: Without dead ends: 376 [2024-11-10 19:42:58,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:58,743 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 207 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:58,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1007 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 19:42:58,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-10 19:42:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 275. [2024-11-10 19:42:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.4754098360655739) internal successors, (270), 267 states have internal predecessors, (270), 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 19:42:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 281 transitions. [2024-11-10 19:42:58,749 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 281 transitions. Word has length 51 [2024-11-10 19:42:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:58,749 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 281 transitions. [2024-11-10 19:42:58,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 19:42:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 281 transitions. [2024-11-10 19:42:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-10 19:42:58,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:58,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:58,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 19:42:58,750 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_35_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:58,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1214416890, now seen corresponding path program 1 times [2024-11-10 19:42:58,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:58,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140364779] [2024-11-10 19:42:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:58,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:58,879 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 19:42:58,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:58,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140364779] [2024-11-10 19:42:58,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140364779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:58,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:58,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:58,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69843356] [2024-11-10 19:42:58,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:58,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:58,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:58,881 INFO L87 Difference]: Start difference. First operand 275 states and 281 transitions. Second operand has 7 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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 19:42:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:59,903 INFO L93 Difference]: Finished difference Result 376 states and 381 transitions. [2024-11-10 19:42:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:59,904 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), 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 53 [2024-11-10 19:42:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:59,905 INFO L225 Difference]: With dead ends: 376 [2024-11-10 19:42:59,906 INFO L226 Difference]: Without dead ends: 375 [2024-11-10 19:42:59,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:59,907 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 172 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:59,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 865 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 19:42:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-10 19:42:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 275. [2024-11-10 19:42:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.469945355191257) internal successors, (269), 267 states have internal predecessors, (269), 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 19:42:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 280 transitions. [2024-11-10 19:42:59,922 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 280 transitions. Word has length 53 [2024-11-10 19:42:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:59,923 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 280 transitions. [2024-11-10 19:42:59,923 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), 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 19:42:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 280 transitions. [2024-11-10 19:42:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-10 19:42:59,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:59,924 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 19:42:59,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 19:42:59,924 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_35_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:42:59,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1007782192, now seen corresponding path program 1 times [2024-11-10 19:42:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789338858] [2024-11-10 19:42:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:59,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:00,096 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 19:43:00,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:00,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789338858] [2024-11-10 19:43:00,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789338858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:00,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:00,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:00,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329704340] [2024-11-10 19:43:00,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:00,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:00,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:00,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:00,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:00,098 INFO L87 Difference]: Start difference. First operand 275 states and 280 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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 19:43:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:01,124 INFO L93 Difference]: Finished difference Result 375 states and 380 transitions. [2024-11-10 19:43:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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 54 [2024-11-10 19:43:01,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:01,125 INFO L225 Difference]: With dead ends: 375 [2024-11-10 19:43:01,125 INFO L226 Difference]: Without dead ends: 374 [2024-11-10 19:43:01,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:01,126 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 166 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:01,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 972 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 19:43:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-10 19:43:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 275. [2024-11-10 19:43:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 183 states have (on average 1.46448087431694) internal successors, (268), 267 states have internal predecessors, (268), 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 19:43:01,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 279 transitions. [2024-11-10 19:43:01,132 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 279 transitions. Word has length 54 [2024-11-10 19:43:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:01,133 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 279 transitions. [2024-11-10 19:43:01,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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 19:43:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 279 transitions. [2024-11-10 19:43:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-10 19:43:01,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:01,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:01,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 19:43:01,133 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_35_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:01,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2099964087, now seen corresponding path program 1 times [2024-11-10 19:43:01,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684557699] [2024-11-10 19:43:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:01,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,273 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 19:43:01,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:01,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684557699] [2024-11-10 19:43:01,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684557699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:01,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:01,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:01,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425382011] [2024-11-10 19:43:01,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:01,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:01,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:01,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:01,277 INFO L87 Difference]: Start difference. First operand 275 states and 279 transitions. Second operand has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 19:43:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:01,335 INFO L93 Difference]: Finished difference Result 373 states and 377 transitions. [2024-11-10 19:43:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:01,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 62 [2024-11-10 19:43:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:01,337 INFO L225 Difference]: With dead ends: 373 [2024-11-10 19:43:01,337 INFO L226 Difference]: Without dead ends: 372 [2024-11-10 19:43:01,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:01,338 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 155 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:01,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1109 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:43:01,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-10 19:43:01,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 276. [2024-11-10 19:43:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 184 states have (on average 1.4619565217391304) internal successors, (269), 268 states have internal predecessors, (269), 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 19:43:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 280 transitions. [2024-11-10 19:43:01,344 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 280 transitions. Word has length 62 [2024-11-10 19:43:01,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:01,344 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 280 transitions. [2024-11-10 19:43:01,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 19:43:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 280 transitions. [2024-11-10 19:43:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:43:01,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:01,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:01,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 19:43:01,346 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_27_to_35_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:01,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash -674377149, now seen corresponding path program 1 times [2024-11-10 19:43:01,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:01,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020564814] [2024-11-10 19:43:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,537 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 19:43:01,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:01,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020564814] [2024-11-10 19:43:01,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020564814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:01,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:01,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046869641] [2024-11-10 19:43:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:01,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:01,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:01,538 INFO L87 Difference]: Start difference. First operand 276 states and 280 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, (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 19:43:01,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:01,605 INFO L93 Difference]: Finished difference Result 276 states and 280 transitions. [2024-11-10 19:43:01,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:01,606 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, (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 63 [2024-11-10 19:43:01,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:01,608 INFO L225 Difference]: With dead ends: 276 [2024-11-10 19:43:01,608 INFO L226 Difference]: Without dead ends: 275 [2024-11-10 19:43:01,608 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 19:43:01,608 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 266 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:01,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 942 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:43:01,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-10 19:43:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2024-11-10 19:43:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 184 states have (on average 1.4565217391304348) internal successors, (268), 267 states have internal predecessors, (268), 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 19:43:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 279 transitions. [2024-11-10 19:43:01,616 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 279 transitions. Word has length 63 [2024-11-10 19:43:01,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:01,616 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 279 transitions. [2024-11-10 19:43:01,616 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, (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 19:43:01,616 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 279 transitions. [2024-11-10 19:43:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 19:43:01,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:01,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:01,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 19:43:01,617 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_27_to_35_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:01,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash 463624929, now seen corresponding path program 1 times [2024-11-10 19:43:01,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:01,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170660613] [2024-11-10 19:43:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:01,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,734 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 19:43:01,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:01,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170660613] [2024-11-10 19:43:01,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170660613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:01,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:01,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:43:01,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867249229] [2024-11-10 19:43:01,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:01,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:43:01,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:01,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:43:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:43:01,736 INFO L87 Difference]: Start difference. First operand 275 states and 279 transitions. Second operand has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 19:43:01,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:01,850 INFO L93 Difference]: Finished difference Result 371 states and 376 transitions. [2024-11-10 19:43:01,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:43:01,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 65 [2024-11-10 19:43:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:01,851 INFO L225 Difference]: With dead ends: 371 [2024-11-10 19:43:01,851 INFO L226 Difference]: Without dead ends: 369 [2024-11-10 19:43:01,853 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 19:43:01,853 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 152 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:01,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 919 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:43:01,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-10 19:43:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 279. [2024-11-10 19:43:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 188 states have (on average 1.446808510638298) internal successors, (272), 271 states have internal predecessors, (272), 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 19:43:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 283 transitions. [2024-11-10 19:43:01,861 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 283 transitions. Word has length 65 [2024-11-10 19:43:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:01,862 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 283 transitions. [2024-11-10 19:43:01,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 19:43:01,862 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 283 transitions. [2024-11-10 19:43:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 19:43:01,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:01,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:01,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 19:43:01,863 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:01,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:01,863 INFO L85 PathProgramCache]: Analyzing trace with hash 464613479, now seen corresponding path program 1 times [2024-11-10 19:43:01,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:01,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067513785] [2024-11-10 19:43:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:01,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:01,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 19:43:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:02,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:43:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:02,036 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 19:43:02,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067513785] [2024-11-10 19:43:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067513785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:02,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:43:02,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041886465] [2024-11-10 19:43:02,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:02,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:43:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:02,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:43:02,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:43:02,038 INFO L87 Difference]: Start difference. First operand 279 states and 283 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 19:43:02,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:02,549 INFO L93 Difference]: Finished difference Result 370 states and 375 transitions. [2024-11-10 19:43:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:43:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 65 [2024-11-10 19:43:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:02,550 INFO L225 Difference]: With dead ends: 370 [2024-11-10 19:43:02,550 INFO L226 Difference]: Without dead ends: 360 [2024-11-10 19:43:02,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:02,551 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 279 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:02,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 566 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:43:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-10 19:43:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 296. [2024-11-10 19:43:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 204 states have (on average 1.411764705882353) internal successors, (288), 286 states have internal predecessors, (288), 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 19:43:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 300 transitions. [2024-11-10 19:43:02,557 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 300 transitions. Word has length 65 [2024-11-10 19:43:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:02,558 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 300 transitions. [2024-11-10 19:43:02,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 19:43:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 300 transitions. [2024-11-10 19:43:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-10 19:43:02,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:02,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:02,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 19:43:02,559 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_27_to_35_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:02,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:02,559 INFO L85 PathProgramCache]: Analyzing trace with hash -764461852, now seen corresponding path program 1 times [2024-11-10 19:43:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805403125] [2024-11-10 19:43:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:02,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391913214] [2024-11-10 19:43:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:02,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:02,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:02,578 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 19:43:02,579 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 19:43:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:02,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:43:02,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:02,665 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 19:43:02,810 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 19:43:02,811 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:02,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805403125] [2024-11-10 19:43:02,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391913214] [2024-11-10 19:43:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391913214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:02,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:02,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:43:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863643201] [2024-11-10 19:43:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:02,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:43:02,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:43:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:43:02,813 INFO L87 Difference]: Start difference. First operand 296 states and 300 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 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 19:43:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:03,139 INFO L93 Difference]: Finished difference Result 382 states and 392 transitions. [2024-11-10 19:43:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:43:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 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 68 [2024-11-10 19:43:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:03,141 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:03,141 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:03,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:03,142 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 230 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:03,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 834 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:43:03,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 336. [2024-11-10 19:43:03,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 242 states have (on average 1.4462809917355373) internal successors, (350), 325 states have internal predecessors, (350), 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 19:43:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 364 transitions. [2024-11-10 19:43:03,150 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 364 transitions. Word has length 68 [2024-11-10 19:43:03,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:03,150 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 364 transitions. [2024-11-10 19:43:03,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 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 19:43:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 364 transitions. [2024-11-10 19:43:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 19:43:03,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:03,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:03,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 19:43:03,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-10 19:43:03,356 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_27_to_35_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:03,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:03,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2071486462, now seen corresponding path program 1 times [2024-11-10 19:43:03,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:03,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988928312] [2024-11-10 19:43:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:03,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775939857] [2024-11-10 19:43:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:03,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:03,392 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 19:43:03,393 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 19:43:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:03,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 19:43:03,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:03,478 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 19:43:03,600 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 19:43:03,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:03,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988928312] [2024-11-10 19:43:03,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775939857] [2024-11-10 19:43:03,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775939857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:03,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:03,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:43:03,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721570412] [2024-11-10 19:43:03,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:03,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:43:03,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:43:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:43:03,602 INFO L87 Difference]: Start difference. First operand 336 states and 364 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 19:43:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:03,857 INFO L93 Difference]: Finished difference Result 382 states and 391 transitions. [2024-11-10 19:43:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:43:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 69 [2024-11-10 19:43:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:03,859 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:03,859 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:03,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 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 19:43:03,859 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 151 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:03,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 956 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:43:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:03,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 337. [2024-11-10 19:43:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 243 states have (on average 1.4444444444444444) internal successors, (351), 326 states have internal predecessors, (351), 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 19:43:03,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 365 transitions. [2024-11-10 19:43:03,869 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 365 transitions. Word has length 69 [2024-11-10 19:43:03,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:03,869 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 365 transitions. [2024-11-10 19:43:03,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 19:43:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 365 transitions. [2024-11-10 19:43:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 19:43:03,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:03,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:03,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 19:43:04,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-10 19:43:04,071 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_27_to_35_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:04,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:04,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2128635036, now seen corresponding path program 1 times [2024-11-10 19:43:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:04,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462624322] [2024-11-10 19:43:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:04,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:04,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993603732] [2024-11-10 19:43:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:04,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:04,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:04,096 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 19:43:04,097 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 19:43:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:04,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 19:43:04,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:04,185 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 11 treesize of output 7 [2024-11-10 19:43:04,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 19:43:04,316 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 19:43:04,328 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 19:43:04,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:04,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:04,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462624322] [2024-11-10 19:43:04,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:04,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993603732] [2024-11-10 19:43:04,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993603732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:04,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:04,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 19:43:04,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057168922] [2024-11-10 19:43:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:04,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:43:04,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:04,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:43:04,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:43:04,330 INFO L87 Difference]: Start difference. First operand 337 states and 365 transitions. Second operand has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 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 19:43:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:04,550 INFO L93 Difference]: Finished difference Result 382 states and 390 transitions. [2024-11-10 19:43:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:43:04,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 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 71 [2024-11-10 19:43:04,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:04,551 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:04,551 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:04,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 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 19:43:04,552 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 238 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:04,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 901 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:43:04,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 339. [2024-11-10 19:43:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 245 states have (on average 1.4408163265306122) internal successors, (353), 328 states have internal predecessors, (353), 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 19:43:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 367 transitions. [2024-11-10 19:43:04,559 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 367 transitions. Word has length 71 [2024-11-10 19:43:04,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:04,559 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 367 transitions. [2024-11-10 19:43:04,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 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 19:43:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 367 transitions. [2024-11-10 19:43:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-10 19:43:04,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:04,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:04,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 19:43:04,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:04,761 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_27_to_35_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:04,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1563176769, now seen corresponding path program 1 times [2024-11-10 19:43:04,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:04,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732038052] [2024-11-10 19:43:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:04,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:04,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554615862] [2024-11-10 19:43:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:04,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:04,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:04,779 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 19:43:04,790 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 19:43:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:04,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-10 19:43:04,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:04,884 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 19:43:04,992 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 19 treesize of output 11 [2024-11-10 19:43:05,026 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 19:43:05,027 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732038052] [2024-11-10 19:43:05,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554615862] [2024-11-10 19:43:05,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554615862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:05,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:05,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 19:43:05,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601891503] [2024-11-10 19:43:05,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:05,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:43:05,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:05,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:43:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:43:05,029 INFO L87 Difference]: Start difference. First operand 339 states and 367 transitions. Second operand has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 19:43:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:05,370 INFO L93 Difference]: Finished difference Result 382 states and 389 transitions. [2024-11-10 19:43:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:43:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 72 [2024-11-10 19:43:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:05,372 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:05,372 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:05,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 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 19:43:05,373 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 157 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:05,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1224 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:43:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:05,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 340. [2024-11-10 19:43:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 246 states have (on average 1.4390243902439024) internal successors, (354), 329 states have internal predecessors, (354), 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 19:43:05,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 368 transitions. [2024-11-10 19:43:05,383 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 368 transitions. Word has length 72 [2024-11-10 19:43:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:05,383 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 368 transitions. [2024-11-10 19:43:05,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 19:43:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 368 transitions. [2024-11-10 19:43:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-10 19:43:05,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:05,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:05,397 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 19:43:05,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:05,589 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_27_to_35_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:05,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1025675649, now seen corresponding path program 1 times [2024-11-10 19:43:05,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:05,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623176569] [2024-11-10 19:43:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:05,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2063695366] [2024-11-10 19:43:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:05,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:05,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:05,608 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 19:43:05,609 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 19:43:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:05,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 19:43:05,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:05,692 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 19:43:05,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 19:43:05,834 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 19:43:05,850 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 19:43:05,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:05,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623176569] [2024-11-10 19:43:05,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063695366] [2024-11-10 19:43:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063695366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:05,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:05,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 19:43:05,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858260228] [2024-11-10 19:43:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:05,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:43:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:05,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:43:05,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:05,851 INFO L87 Difference]: Start difference. First operand 340 states and 368 transitions. Second operand has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 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 19:43:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:06,246 INFO L93 Difference]: Finished difference Result 382 states and 388 transitions. [2024-11-10 19:43:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:43:06,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 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 74 [2024-11-10 19:43:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:06,247 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:06,247 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:06,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:43:06,248 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 152 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:06,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1415 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:43:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 342. [2024-11-10 19:43:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 248 states have (on average 1.435483870967742) internal successors, (356), 331 states have internal predecessors, (356), 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 19:43:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 370 transitions. [2024-11-10 19:43:06,255 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 370 transitions. Word has length 74 [2024-11-10 19:43:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:06,255 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 370 transitions. [2024-11-10 19:43:06,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 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 19:43:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 370 transitions. [2024-11-10 19:43:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 19:43:06,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:06,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:06,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 19:43:06,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-10 19:43:06,456 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_27_to_35_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:06,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1731173959, now seen corresponding path program 1 times [2024-11-10 19:43:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:06,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519580257] [2024-11-10 19:43:06,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:06,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:06,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249540339] [2024-11-10 19:43:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:06,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:06,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:06,480 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 19:43:06,481 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 19:43:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:06,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-10 19:43:06,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:06,570 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 19:43:06,669 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 19:43:06,727 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 19:43:06,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519580257] [2024-11-10 19:43:06,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249540339] [2024-11-10 19:43:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249540339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:06,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 19:43:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032900573] [2024-11-10 19:43:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:06,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:43:06,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:43:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:06,729 INFO L87 Difference]: Start difference. First operand 342 states and 370 transitions. Second operand has 10 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 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 19:43:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:07,112 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2024-11-10 19:43:07,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:43:07,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 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 75 [2024-11-10 19:43:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:07,114 INFO L225 Difference]: With dead ends: 382 [2024-11-10 19:43:07,114 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 19:43:07,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:43:07,115 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 231 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:07,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1138 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:43:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 19:43:07,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 343. [2024-11-10 19:43:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 249 states have (on average 1.4337349397590362) internal successors, (357), 332 states have internal predecessors, (357), 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 19:43:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 371 transitions. [2024-11-10 19:43:07,122 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 371 transitions. Word has length 75 [2024-11-10 19:43:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:07,122 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 371 transitions. [2024-11-10 19:43:07,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 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 19:43:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 371 transitions. [2024-11-10 19:43:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 19:43:07,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:07,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:07,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 19:43:07,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:07,327 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_27_to_35_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:07,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:07,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1505828265, now seen corresponding path program 1 times [2024-11-10 19:43:07,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:07,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739839516] [2024-11-10 19:43:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:07,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:07,483 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 19:43:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739839516] [2024-11-10 19:43:07,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739839516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:07,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:07,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165338853] [2024-11-10 19:43:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:07,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:07,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:07,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:07,485 INFO L87 Difference]: Start difference. First operand 343 states and 371 transitions. Second operand has 7 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 19:43:08,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:08,375 INFO L93 Difference]: Finished difference Result 367 states and 377 transitions. [2024-11-10 19:43:08,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:08,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 77 [2024-11-10 19:43:08,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:08,376 INFO L225 Difference]: With dead ends: 367 [2024-11-10 19:43:08,376 INFO L226 Difference]: Without dead ends: 366 [2024-11-10 19:43:08,377 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 19:43:08,378 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 140 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:08,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1097 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 19:43:08,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-10 19:43:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 345. [2024-11-10 19:43:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 251 states have (on average 1.4302788844621515) internal successors, (359), 334 states have internal predecessors, (359), 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 19:43:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 373 transitions. [2024-11-10 19:43:08,385 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 373 transitions. Word has length 77 [2024-11-10 19:43:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:08,385 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 373 transitions. [2024-11-10 19:43:08,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 19:43:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 373 transitions. [2024-11-10 19:43:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 19:43:08,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:08,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:08,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 19:43:08,386 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:08,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash 563964124, now seen corresponding path program 1 times [2024-11-10 19:43:08,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:08,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457336775] [2024-11-10 19:43:08,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:08,614 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 19:43:08,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:08,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457336775] [2024-11-10 19:43:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457336775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:08,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:08,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:43:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545016566] [2024-11-10 19:43:08,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:08,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:43:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:43:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:43:08,616 INFO L87 Difference]: Start difference. First operand 345 states and 373 transitions. Second operand has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 19:43:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:09,487 INFO L93 Difference]: Finished difference Result 366 states and 376 transitions. [2024-11-10 19:43:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:09,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 78 [2024-11-10 19:43:09,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:09,489 INFO L225 Difference]: With dead ends: 366 [2024-11-10 19:43:09,489 INFO L226 Difference]: Without dead ends: 365 [2024-11-10 19:43:09,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:43:09,490 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 134 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:09,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1238 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 19:43:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-10 19:43:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 346. [2024-11-10 19:43:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 252 states have (on average 1.4285714285714286) internal successors, (360), 335 states have internal predecessors, (360), 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 19:43:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 374 transitions. [2024-11-10 19:43:09,498 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 374 transitions. Word has length 78 [2024-11-10 19:43:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:09,498 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 374 transitions. [2024-11-10 19:43:09,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 19:43:09,499 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 374 transitions. [2024-11-10 19:43:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 19:43:09,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:09,499 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:09,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 19:43:09,500 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:09,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash 214080684, now seen corresponding path program 1 times [2024-11-10 19:43:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854208099] [2024-11-10 19:43:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 19:43:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:43:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,629 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 19:43:09,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:09,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854208099] [2024-11-10 19:43:09,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854208099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:09,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:09,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:43:09,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408073626] [2024-11-10 19:43:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:09,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:43:09,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:43:09,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:43:09,631 INFO L87 Difference]: Start difference. First operand 346 states and 374 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 19:43:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:09,854 INFO L93 Difference]: Finished difference Result 376 states and 380 transitions. [2024-11-10 19:43:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:09,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 80 [2024-11-10 19:43:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:09,855 INFO L225 Difference]: With dead ends: 376 [2024-11-10 19:43:09,856 INFO L226 Difference]: Without dead ends: 375 [2024-11-10 19:43:09,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:43:09,856 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 261 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:09,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 583 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:43:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-10 19:43:09,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 346. [2024-11-10 19:43:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 252 states have (on average 1.4246031746031746) internal successors, (359), 335 states have internal predecessors, (359), 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 19:43:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 373 transitions. [2024-11-10 19:43:09,862 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 373 transitions. Word has length 80 [2024-11-10 19:43:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:09,862 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 373 transitions. [2024-11-10 19:43:09,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 19:43:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 373 transitions. [2024-11-10 19:43:09,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 19:43:09,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:09,863 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, 1, 1, 1, 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 19:43:09,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 19:43:09,863 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:09,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:09,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1953433350, now seen corresponding path program 1 times [2024-11-10 19:43:09,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:09,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99519935] [2024-11-10 19:43:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:09,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 19:43:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:43:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:09,995 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 19:43:09,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:09,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99519935] [2024-11-10 19:43:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99519935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:09,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:09,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:43:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522645949] [2024-11-10 19:43:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:09,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:43:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:43:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:43:09,997 INFO L87 Difference]: Start difference. First operand 346 states and 373 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 19:43:10,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:10,177 INFO L93 Difference]: Finished difference Result 375 states and 379 transitions. [2024-11-10 19:43:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:43:10,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 81 [2024-11-10 19:43:10,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:10,179 INFO L225 Difference]: With dead ends: 375 [2024-11-10 19:43:10,179 INFO L226 Difference]: Without dead ends: 374 [2024-11-10 19:43:10,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:43:10,179 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 347 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:10,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 531 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:43:10,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-10 19:43:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 346. [2024-11-10 19:43:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 252 states have (on average 1.4206349206349207) internal successors, (358), 335 states have internal predecessors, (358), 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 19:43:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 372 transitions. [2024-11-10 19:43:10,185 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 372 transitions. Word has length 81 [2024-11-10 19:43:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:10,186 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 372 transitions. [2024-11-10 19:43:10,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 19:43:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 372 transitions. [2024-11-10 19:43:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 19:43:10,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:10,186 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, 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 19:43:10,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 19:43:10,187 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_27_to_35_0Err45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:10,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1288918252, now seen corresponding path program 1 times [2024-11-10 19:43:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:10,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568824764] [2024-11-10 19:43:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:10,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:10,399 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 19:43:10,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568824764] [2024-11-10 19:43:10,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568824764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:10,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481839122] [2024-11-10 19:43:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:10,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:10,402 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 19:43:10,403 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 19:43:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:10,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 19:43:10,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:10,623 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 38 treesize of output 15 [2024-11-10 19:43:10,665 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 17 treesize of output 9 [2024-11-10 19:43:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:10,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481839122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:43:10,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:43:10,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2024-11-10 19:43:10,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664510499] [2024-11-10 19:43:10,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:10,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 19:43:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:10,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 19:43:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:43:10,834 INFO L87 Difference]: Start difference. First operand 346 states and 372 transitions. Second operand has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 17 states have internal predecessors, (226), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:43:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:11,935 INFO L93 Difference]: Finished difference Result 378 states and 386 transitions. [2024-11-10 19:43:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:43:11,935 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 17 states have internal predecessors, (226), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 83 [2024-11-10 19:43:11,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:11,937 INFO L225 Difference]: With dead ends: 378 [2024-11-10 19:43:11,937 INFO L226 Difference]: Without dead ends: 376 [2024-11-10 19:43:11,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 155 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-11-10 19:43:11,937 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1088 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:11,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1786 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 19:43:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-10 19:43:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 344. [2024-11-10 19:43:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 252 states have (on average 1.4126984126984128) internal successors, (356), 333 states have internal predecessors, (356), 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 19:43:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 370 transitions. [2024-11-10 19:43:11,945 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 370 transitions. Word has length 83 [2024-11-10 19:43:11,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:11,946 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 370 transitions. [2024-11-10 19:43:11,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 17 states have internal predecessors, (226), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:43:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 370 transitions. [2024-11-10 19:43:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 19:43:11,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:11,946 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:43:11,959 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 19:43:12,147 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,SelfDestructingSolverStorable26 [2024-11-10 19:43:12,147 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting func_to_recursive_line_27_to_35_0Err44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:12,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1301760343, now seen corresponding path program 1 times [2024-11-10 19:43:12,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:12,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960932200] [2024-11-10 19:43:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:12,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 19:43:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:12,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:12,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960932200] [2024-11-10 19:43:12,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960932200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:12,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223303954] [2024-11-10 19:43:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:12,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:12,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:12,368 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 19:43:12,369 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 19:43:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:12,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 19:43:12,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:12,468 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 19:43:12,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 19:43:12,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 19:43:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:12,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:12,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223303954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:43:12,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:43:12,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 17 [2024-11-10 19:43:12,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224341329] [2024-11-10 19:43:12,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:12,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 19:43:12,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:12,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 19:43:12,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:43:12,747 INFO L87 Difference]: Start difference. First operand 344 states and 370 transitions. Second operand has 18 states, 15 states have (on average 10.733333333333333) internal successors, (161), 14 states have internal predecessors, (161), 6 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:43:14,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:14,695 INFO L93 Difference]: Finished difference Result 592 states and 602 transitions. [2024-11-10 19:43:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 19:43:14,696 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 10.733333333333333) internal successors, (161), 14 states have internal predecessors, (161), 6 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 84 [2024-11-10 19:43:14,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:14,697 INFO L225 Difference]: With dead ends: 592 [2024-11-10 19:43:14,697 INFO L226 Difference]: Without dead ends: 590 [2024-11-10 19:43:14,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:43:14,698 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1135 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:14,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1610 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 19:43:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-10 19:43:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 477. [2024-11-10 19:43:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.4748010610079576) internal successors, (556), 460 states have internal predecessors, (556), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 582 transitions. [2024-11-10 19:43:14,708 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 582 transitions. Word has length 84 [2024-11-10 19:43:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:14,709 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 582 transitions. [2024-11-10 19:43:14,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 10.733333333333333) internal successors, (161), 14 states have internal predecessors, (161), 6 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:43:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 582 transitions. [2024-11-10 19:43:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 19:43:14,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:14,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:14,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-10 19:43:14,910 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,SelfDestructingSolverStorable27 [2024-11-10 19:43:14,910 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:14,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash -348739816, now seen corresponding path program 1 times [2024-11-10 19:43:14,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:14,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82298486] [2024-11-10 19:43:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:14,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:14,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366003571] [2024-11-10 19:43:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:14,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:14,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:14,929 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 19:43:14,931 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 19:43:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:15,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 19:43:15,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:15,024 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 19:43:15,097 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 19:43:15,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:43:15,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82298486] [2024-11-10 19:43:15,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366003571] [2024-11-10 19:43:15,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366003571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:43:15,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:43:15,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:43:15,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357260299] [2024-11-10 19:43:15,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:43:15,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:43:15,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:15,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:43:15,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:43:15,100 INFO L87 Difference]: Start difference. First operand 477 states and 582 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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 19:43:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:15,509 INFO L93 Difference]: Finished difference Result 505 states and 588 transitions. [2024-11-10 19:43:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:43:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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 83 [2024-11-10 19:43:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:15,511 INFO L225 Difference]: With dead ends: 505 [2024-11-10 19:43:15,511 INFO L226 Difference]: Without dead ends: 499 [2024-11-10 19:43:15,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 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 19:43:15,511 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 135 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:15,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:43:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-10 19:43:15,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 477. [2024-11-10 19:43:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.4588859416445623) internal successors, (550), 460 states have internal predecessors, (550), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 576 transitions. [2024-11-10 19:43:15,520 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 576 transitions. Word has length 83 [2024-11-10 19:43:15,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:15,521 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 576 transitions. [2024-11-10 19:43:15,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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 19:43:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 576 transitions. [2024-11-10 19:43:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-10 19:43:15,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:15,521 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, 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 19:43:15,535 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 19:43:15,722 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,SelfDestructingSolverStorable28 [2024-11-10 19:43:15,723 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting func_to_recursive_line_27_to_35_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:15,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1156212693, now seen corresponding path program 1 times [2024-11-10 19:43:15,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505463546] [2024-11-10 19:43:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:15,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225171651] [2024-11-10 19:43:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:15,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:15,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:15,745 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 19:43:15,746 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 19:43:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:15,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-10 19:43:15,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:15,852 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 19:43:15,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 19:43:16,002 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 19:43:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:16,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:16,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:16,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505463546] [2024-11-10 19:43:16,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:16,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225171651] [2024-11-10 19:43:16,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225171651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:16,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:16,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-10 19:43:16,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405720057] [2024-11-10 19:43:16,788 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:16,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:43:16,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:16,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:43:16,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-10 19:43:16,789 INFO L87 Difference]: Start difference. First operand 477 states and 576 transitions. Second operand has 11 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 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 19:43:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:17,473 INFO L93 Difference]: Finished difference Result 536 states and 585 transitions. [2024-11-10 19:43:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 19:43:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 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 86 [2024-11-10 19:43:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:17,474 INFO L225 Difference]: With dead ends: 536 [2024-11-10 19:43:17,475 INFO L226 Difference]: Without dead ends: 535 [2024-11-10 19:43:17,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-10 19:43:17,475 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 501 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:17,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1161 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:43:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-10 19:43:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 477. [2024-11-10 19:43:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.4562334217506632) internal successors, (549), 460 states have internal predecessors, (549), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 575 transitions. [2024-11-10 19:43:17,485 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 575 transitions. Word has length 86 [2024-11-10 19:43:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:17,485 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 575 transitions. [2024-11-10 19:43:17,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 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 19:43:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 575 transitions. [2024-11-10 19:43:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-10 19:43:17,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:17,486 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, 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 19:43:17,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-10 19:43:17,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:17,686 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting func_to_recursive_line_27_to_35_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:17,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:17,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1482855305, now seen corresponding path program 1 times [2024-11-10 19:43:17,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:17,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980790798] [2024-11-10 19:43:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:17,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:17,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716538822] [2024-11-10 19:43:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:17,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:17,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:17,706 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 19:43:17,707 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 19:43:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:17,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 19:43:17,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:17,817 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 19:43:17,895 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 19:43:17,950 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 19:43:17,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:22,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:22,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980790798] [2024-11-10 19:43:22,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:22,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716538822] [2024-11-10 19:43:22,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716538822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:22,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:22,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-10 19:43:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367844211] [2024-11-10 19:43:22,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:22,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:43:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:43:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=221, Unknown=1, NotChecked=0, Total=272 [2024-11-10 19:43:22,223 INFO L87 Difference]: Start difference. First operand 477 states and 575 transitions. Second operand has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 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 19:43:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:23,175 INFO L93 Difference]: Finished difference Result 535 states and 584 transitions. [2024-11-10 19:43:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 19:43:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 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 87 [2024-11-10 19:43:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:23,179 INFO L225 Difference]: With dead ends: 535 [2024-11-10 19:43:23,179 INFO L226 Difference]: Without dead ends: 534 [2024-11-10 19:43:23,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=99, Invalid=362, Unknown=1, NotChecked=0, Total=462 [2024-11-10 19:43:23,179 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 437 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:23,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1378 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 19:43:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-10 19:43:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 477. [2024-11-10 19:43:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.453580901856764) internal successors, (548), 460 states have internal predecessors, (548), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 574 transitions. [2024-11-10 19:43:23,197 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 574 transitions. Word has length 87 [2024-11-10 19:43:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:23,197 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 574 transitions. [2024-11-10 19:43:23,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 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 19:43:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 574 transitions. [2024-11-10 19:43:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 19:43:23,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:23,198 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, 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 19:43:23,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-10 19:43:23,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:23,403 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting func_to_recursive_line_27_to_35_0Err41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:23,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:23,403 INFO L85 PathProgramCache]: Analyzing trace with hash -905188121, now seen corresponding path program 1 times [2024-11-10 19:43:23,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:23,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061702382] [2024-11-10 19:43:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:23,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:23,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583044129] [2024-11-10 19:43:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:23,435 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 19:43:23,436 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 19:43:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:23,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-10 19:43:23,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:23,549 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 19:43:23,654 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 19:43:23,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:23,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:33,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:33,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061702382] [2024-11-10 19:43:33,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:33,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583044129] [2024-11-10 19:43:33,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583044129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:33,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:33,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-10 19:43:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682142839] [2024-11-10 19:43:33,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:33,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:43:33,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:33,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:43:33,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=314, Unknown=1, NotChecked=0, Total=380 [2024-11-10 19:43:33,523 INFO L87 Difference]: Start difference. First operand 477 states and 574 transitions. Second operand has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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 19:43:34,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:34,484 INFO L93 Difference]: Finished difference Result 534 states and 583 transitions. [2024-11-10 19:43:34,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:43:34,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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 89 [2024-11-10 19:43:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:34,486 INFO L225 Difference]: With dead ends: 534 [2024-11-10 19:43:34,486 INFO L226 Difference]: Without dead ends: 533 [2024-11-10 19:43:34,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=132, Invalid=517, Unknown=1, NotChecked=0, Total=650 [2024-11-10 19:43:34,487 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 476 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:34,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1579 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 19:43:34,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-10 19:43:34,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 477. [2024-11-10 19:43:34,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.4509283819628647) internal successors, (547), 460 states have internal predecessors, (547), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:34,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 573 transitions. [2024-11-10 19:43:34,498 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 573 transitions. Word has length 89 [2024-11-10 19:43:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:34,499 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 573 transitions. [2024-11-10 19:43:34,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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 19:43:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 573 transitions. [2024-11-10 19:43:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-10 19:43:34,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:34,499 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, 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 19:43:34,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-10 19:43:34,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:34,704 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting func_to_recursive_line_27_to_35_0Err40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:34,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:34,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2003939506, now seen corresponding path program 1 times [2024-11-10 19:43:34,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:34,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824849198] [2024-11-10 19:43:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:34,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366166555] [2024-11-10 19:43:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:34,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:34,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:34,728 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 19:43:34,730 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 19:43:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:34,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-10 19:43:34,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:34,837 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 19:43:34,930 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 19:43:35,012 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 19:43:35,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:43:36,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:43:36,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824849198] [2024-11-10 19:43:36,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:43:36,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366166555] [2024-11-10 19:43:36,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366166555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:43:36,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:43:36,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-10 19:43:36,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843509136] [2024-11-10 19:43:36,828 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:43:36,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 19:43:36,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:43:36,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 19:43:36,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-10 19:43:36,830 INFO L87 Difference]: Start difference. First operand 477 states and 573 transitions. Second operand has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 19:43:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:43:37,839 INFO L93 Difference]: Finished difference Result 533 states and 582 transitions. [2024-11-10 19:43:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 19:43:37,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 90 [2024-11-10 19:43:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:43:37,841 INFO L225 Difference]: With dead ends: 533 [2024-11-10 19:43:37,841 INFO L226 Difference]: Without dead ends: 532 [2024-11-10 19:43:37,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:43:37,841 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 543 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 19:43:37,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1402 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 19:43:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-10 19:43:37,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 477. [2024-11-10 19:43:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.4482758620689655) internal successors, (546), 460 states have internal predecessors, (546), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-10 19:43:37,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 572 transitions. [2024-11-10 19:43:37,850 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 572 transitions. Word has length 90 [2024-11-10 19:43:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:43:37,850 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 572 transitions. [2024-11-10 19:43:37,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 19:43:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 572 transitions. [2024-11-10 19:43:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 19:43:37,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:43:37,851 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, 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 19:43:37,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-10 19:43:38,051 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,SelfDestructingSolverStorable32 [2024-11-10 19:43:38,051 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting func_to_recursive_line_27_to_35_0Err39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:43:38,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:43:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1640522544, now seen corresponding path program 1 times [2024-11-10 19:43:38,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:43:38,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536258053] [2024-11-10 19:43:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:38,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:43:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:43:38,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987989172] [2024-11-10 19:43:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:43:38,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:43:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:43:38,068 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 19:43:38,069 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 19:43:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:43:38,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-10 19:43:38,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:43:38,187 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 19:43:38,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 19:43:38,383 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 19:43:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:43:38,405 INFO L311 TraceCheckSpWp]: Computing backward predicates...