./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 20:58:09,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 20:58:09,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 20:58:09,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 20:58:09,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 20:58:09,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 20:58:09,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 20:58:09,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 20:58:09,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 20:58:09,317 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 20:58:09,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 20:58:09,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 20:58:09,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 20:58:09,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 20:58:09,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 20:58:09,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:58:09,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 20:58:09,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 20:58:09,320 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9 [2024-11-07 20:58:09,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 20:58:09,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 20:58:09,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 20:58:09,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 20:58:09,656 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 20:58:09,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2024-11-07 20:58:11,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 20:58:11,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 20:58:11,255 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2024-11-07 20:58:11,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/997bb10e9/b63cd9ae3e3149d1a99e49c3f3cba22e/FLAG65dbe5270 [2024-11-07 20:58:11,275 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/997bb10e9/b63cd9ae3e3149d1a99e49c3f3cba22e [2024-11-07 20:58:11,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 20:58:11,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 20:58:11,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 20:58:11,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 20:58:11,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 20:58:11,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6292b57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11, skipping insertion in model container [2024-11-07 20:58:11,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 20:58:11,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:58:11,433 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 20:58:11,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:58:11,466 INFO L204 MainTranslator]: Completed translation [2024-11-07 20:58:11,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11 WrapperNode [2024-11-07 20:58:11,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 20:58:11,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 20:58:11,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 20:58:11,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 20:58:11,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,495 INFO L138 Inliner]: procedures = 16, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2024-11-07 20:58:11,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 20:58:11,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 20:58:11,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 20:58:11,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 20:58:11,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,517 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 2, 5, 10, 4]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 2]. [2024-11-07 20:58:11,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 20:58:11,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 20:58:11,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 20:58:11,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 20:58:11,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (1/1) ... [2024-11-07 20:58:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:58:11,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:11,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 20:58:11,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 20:58:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 20:58:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 20:58:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 20:58:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 20:58:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 20:58:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 20:58:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 20:58:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 20:58:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 20:58:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 20:58:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 20:58:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 20:58:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 20:58:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 20:58:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0 [2024-11-07 20:58:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0 [2024-11-07 20:58:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 20:58:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 20:58:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 20:58:11,707 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 20:58:11,708 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 20:58:12,019 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-07 20:58:12,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 20:58:12,033 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 20:58:12,034 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 20:58:12,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:12 BoogieIcfgContainer [2024-11-07 20:58:12,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 20:58:12,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 20:58:12,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 20:58:12,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 20:58:12,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:58:11" (1/3) ... [2024-11-07 20:58:12,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77248e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:12, skipping insertion in model container [2024-11-07 20:58:12,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:11" (2/3) ... [2024-11-07 20:58:12,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77248e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:12, skipping insertion in model container [2024-11-07 20:58:12,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:12" (3/3) ... [2024-11-07 20:58:12,045 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps2-ll.c [2024-11-07 20:58:12,061 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 20:58:12,061 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-07 20:58:12,119 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 20:58:12,131 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;@344c93f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 20:58:12,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-07 20:58:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 61 states have internal predecessors, (63), 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) [2024-11-07 20:58:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-07 20:58:12,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:12,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 20:58:12,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_26_to_34_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:12,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash 891789709, now seen corresponding path program 1 times [2024-11-07 20:58:12,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:12,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823389956] [2024-11-07 20:58:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:12,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:12,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621728163] [2024-11-07 20:58:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:12,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:12,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:12,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:12,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 20:58:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:12,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 20:58:12,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:12,478 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 [2024-11-07 20:58:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:12,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823389956] [2024-11-07 20:58:12,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621728163] [2024-11-07 20:58:12,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621728163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:12,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:12,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:12,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678680937] [2024-11-07 20:58:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:12,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:12,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:12,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:12,553 INFO L87 Difference]: Start difference. First operand has 67 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 61 states have internal predecessors, (63), 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) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:58:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:12,780 INFO L93 Difference]: Finished difference Result 172 states and 189 transitions. [2024-11-07 20:58:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:12,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-07 20:58:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:12,788 INFO L225 Difference]: With dead ends: 172 [2024-11-07 20:58:12,788 INFO L226 Difference]: Without dead ends: 102 [2024-11-07 20:58:12,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 20:58:12,794 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 75 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:12,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 257 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-07 20:58:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 75. [2024-11-07 20:58:12,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.6304347826086956) internal successors, (75), 68 states have internal predecessors, (75), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:12,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2024-11-07 20:58:12,848 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 6 [2024-11-07 20:58:12,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:12,850 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2024-11-07 20:58:12,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:58:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2024-11-07 20:58:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 20:58:12,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:12,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:12,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 20:58:13,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-07 20:58:13,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_26_to_34_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:13,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1983546833, now seen corresponding path program 1 times [2024-11-07 20:58:13,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:13,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527697378] [2024-11-07 20:58:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:13,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:13,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:13,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:13,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527697378] [2024-11-07 20:58:13,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527697378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:13,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:13,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:13,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546328811] [2024-11-07 20:58:13,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:13,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:13,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:13,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:13,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:13,421 INFO L87 Difference]: Start difference. First operand 75 states and 84 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) [2024-11-07 20:58:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:13,671 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2024-11-07 20:58:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:13,672 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 [2024-11-07 20:58:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:13,673 INFO L225 Difference]: With dead ends: 98 [2024-11-07 20:58:13,673 INFO L226 Difference]: Without dead ends: 96 [2024-11-07 20:58:13,673 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 [2024-11-07 20:58:13,674 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:13,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 231 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-07 20:58:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2024-11-07 20:58:13,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 68 states have internal predecessors, (73), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2024-11-07 20:58:13,694 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 8 [2024-11-07 20:58:13,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:13,695 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2024-11-07 20:58:13,695 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) [2024-11-07 20:58:13,695 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2024-11-07 20:58:13,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 20:58:13,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:13,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:13,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 20:58:13,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_26_to_34_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:13,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:13,696 INFO L85 PathProgramCache]: Analyzing trace with hash 776975057, now seen corresponding path program 1 times [2024-11-07 20:58:13,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253332128] [2024-11-07 20:58:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:13,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:13,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253332128] [2024-11-07 20:58:13,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253332128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:13,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:13,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:13,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504268216] [2024-11-07 20:58:13,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:13,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:13,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:13,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:13,969 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-11-07 20:58:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:14,212 INFO L93 Difference]: Finished difference Result 96 states and 99 transitions. [2024-11-07 20:58:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 10 [2024-11-07 20:58:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:14,214 INFO L225 Difference]: With dead ends: 96 [2024-11-07 20:58:14,214 INFO L226 Difference]: Without dead ends: 95 [2024-11-07 20:58:14,216 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 [2024-11-07 20:58:14,217 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 68 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:14,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 240 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:14,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-07 20:58:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 75. [2024-11-07 20:58:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.565217391304348) internal successors, (72), 68 states have internal predecessors, (72), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2024-11-07 20:58:14,229 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2024-11-07 20:58:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:14,229 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2024-11-07 20:58:14,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-11-07 20:58:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2024-11-07 20:58:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 20:58:14,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:14,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:14,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 20:58:14,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_26_to_34_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:14,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1683576938, now seen corresponding path program 1 times [2024-11-07 20:58:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825718255] [2024-11-07 20:58:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:14,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:14,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825718255] [2024-11-07 20:58:14,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825718255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:14,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:14,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:14,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056819870] [2024-11-07 20:58:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:14,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:14,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:14,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:14,512 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2024-11-07 20:58:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:14,824 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2024-11-07 20:58:14,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:14,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 11 [2024-11-07 20:58:14,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:14,826 INFO L225 Difference]: With dead ends: 95 [2024-11-07 20:58:14,826 INFO L226 Difference]: Without dead ends: 94 [2024-11-07 20:58:14,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 20:58:14,827 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 58 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:14,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 231 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:14,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-07 20:58:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 75. [2024-11-07 20:58:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 68 states have internal predecessors, (71), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2024-11-07 20:58:14,842 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 11 [2024-11-07 20:58:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:14,842 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2024-11-07 20:58:14,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2024-11-07 20:58:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2024-11-07 20:58:14,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 20:58:14,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:14,845 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:14,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 20:58:14,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_26_to_34_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:14,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:14,845 INFO L85 PathProgramCache]: Analyzing trace with hash -651277453, now seen corresponding path program 1 times [2024-11-07 20:58:14,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:14,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429305647] [2024-11-07 20:58:14,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:14,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:15,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:15,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429305647] [2024-11-07 20:58:15,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429305647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:15,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:15,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:15,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215870232] [2024-11-07 20:58:15,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:15,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:15,064 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-07 20:58:15,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:15,286 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2024-11-07 20:58:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:15,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 12 [2024-11-07 20:58:15,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:15,287 INFO L225 Difference]: With dead ends: 98 [2024-11-07 20:58:15,288 INFO L226 Difference]: Without dead ends: 97 [2024-11-07 20:58:15,288 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 [2024-11-07 20:58:15,289 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:15,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 266 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-07 20:58:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 75. [2024-11-07 20:58:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 68 states have internal predecessors, (70), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2024-11-07 20:58:15,297 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 12 [2024-11-07 20:58:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:15,297 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2024-11-07 20:58:15,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-07 20:58:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2024-11-07 20:58:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 20:58:15,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:15,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:15,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 20:58:15,298 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_26_to_34_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:15,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1285235512, now seen corresponding path program 1 times [2024-11-07 20:58:15,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:15,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096393670] [2024-11-07 20:58:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:15,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096393670] [2024-11-07 20:58:15,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096393670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:15,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:15,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:15,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912377094] [2024-11-07 20:58:15,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:15,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:15,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:15,690 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-07 20:58:16,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:16,234 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2024-11-07 20:58:16,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:16,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 13 [2024-11-07 20:58:16,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:16,235 INFO L225 Difference]: With dead ends: 89 [2024-11-07 20:58:16,235 INFO L226 Difference]: Without dead ends: 88 [2024-11-07 20:58:16,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:58:16,236 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 47 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:16,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 251 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 20:58:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-07 20:58:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 75. [2024-11-07 20:58:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.5) internal successors, (69), 68 states have internal predecessors, (69), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2024-11-07 20:58:16,243 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 13 [2024-11-07 20:58:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2024-11-07 20:58:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-07 20:58:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2024-11-07 20:58:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 20:58:16,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:16,244 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] [2024-11-07 20:58:16,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 20:58:16,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_26_to_34_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:16,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:16,245 INFO L85 PathProgramCache]: Analyzing trace with hash 696246341, now seen corresponding path program 1 times [2024-11-07 20:58:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:16,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476854012] [2024-11-07 20:58:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:16,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476854012] [2024-11-07 20:58:16,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476854012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:16,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:16,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:16,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103803309] [2024-11-07 20:58:16,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:16,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:16,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:16,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:16,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:16,476 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-07 20:58:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:16,565 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2024-11-07 20:58:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 21 [2024-11-07 20:58:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:16,568 INFO L225 Difference]: With dead ends: 96 [2024-11-07 20:58:16,568 INFO L226 Difference]: Without dead ends: 95 [2024-11-07 20:58:16,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:58:16,583 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:16,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 269 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-07 20:58:16,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 76. [2024-11-07 20:58:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:16,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-07 20:58:16,595 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 21 [2024-11-07 20:58:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:16,595 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-07 20:58:16,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-07 20:58:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-07 20:58:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 20:58:16,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:16,596 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] [2024-11-07 20:58:16,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 20:58:16,596 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_26_to_34_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:16,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:16,601 INFO L85 PathProgramCache]: Analyzing trace with hash 108800176, now seen corresponding path program 1 times [2024-11-07 20:58:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:16,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096182674] [2024-11-07 20:58:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:16,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:16,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096182674] [2024-11-07 20:58:16,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096182674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:16,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:16,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:16,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467125438] [2024-11-07 20:58:16,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:16,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:16,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:16,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:16,806 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-07 20:58:16,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:16,886 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2024-11-07 20:58:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:16,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 22 [2024-11-07 20:58:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:16,889 INFO L225 Difference]: With dead ends: 76 [2024-11-07 20:58:16,890 INFO L226 Difference]: Without dead ends: 75 [2024-11-07 20:58:16,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:58:16,894 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 72 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:16,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 220 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:58:16,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-07 20:58:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-07 20:58:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 68 states have internal predecessors, (69), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2024-11-07 20:58:16,906 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 22 [2024-11-07 20:58:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:16,907 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2024-11-07 20:58:16,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-07 20:58:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2024-11-07 20:58:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-07 20:58:16,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:16,911 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] [2024-11-07 20:58:16,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 20:58:16,911 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_26_to_34_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:16,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:16,911 INFO L85 PathProgramCache]: Analyzing trace with hash -922161753, now seen corresponding path program 1 times [2024-11-07 20:58:16,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:16,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299979629] [2024-11-07 20:58:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:17,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:17,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:17,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299979629] [2024-11-07 20:58:17,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299979629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:17,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:17,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:17,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265864808] [2024-11-07 20:58:17,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:17,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:17,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:17,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:17,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:17,049 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 20:58:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:17,134 INFO L93 Difference]: Finished difference Result 93 states and 96 transitions. [2024-11-07 20:58:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 23 [2024-11-07 20:58:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:17,135 INFO L225 Difference]: With dead ends: 93 [2024-11-07 20:58:17,135 INFO L226 Difference]: Without dead ends: 91 [2024-11-07 20:58:17,135 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 [2024-11-07 20:58:17,136 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 34 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:17,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 244 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:58:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-07 20:58:17,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2024-11-07 20:58:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.44) internal successors, (72), 71 states have internal predecessors, (72), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-07 20:58:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2024-11-07 20:58:17,148 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 23 [2024-11-07 20:58:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:17,149 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2024-11-07 20:58:17,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 20:58:17,149 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2024-11-07 20:58:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 20:58:17,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:17,150 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] [2024-11-07 20:58:17,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 20:58:17,150 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:17,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1477304413, now seen corresponding path program 1 times [2024-11-07 20:58:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065312474] [2024-11-07 20:58:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:17,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049131014] [2024-11-07 20:58:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:17,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:17,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:17,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:17,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 20:58:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:17,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 20:58:17,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:17,280 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 [2024-11-07 20:58:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:17,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:17,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:17,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065312474] [2024-11-07 20:58:17,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:17,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049131014] [2024-11-07 20:58:17,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049131014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:17,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:17,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 20:58:17,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102067534] [2024-11-07 20:58:17,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:17,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 20:58:17,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:17,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 20:58:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 20:58:17,337 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 20:58:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:17,468 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2024-11-07 20:58:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:17,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 24 [2024-11-07 20:58:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:17,470 INFO L225 Difference]: With dead ends: 95 [2024-11-07 20:58:17,470 INFO L226 Difference]: Without dead ends: 93 [2024-11-07 20:58:17,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:17,470 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 37 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:17,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 133 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-07 20:58:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2024-11-07 20:58:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 74 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2024-11-07 20:58:17,480 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 24 [2024-11-07 20:58:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:17,481 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2024-11-07 20:58:17,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 20:58:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2024-11-07 20:58:17,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 20:58:17,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:17,482 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] [2024-11-07 20:58:17,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 20:58:17,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:17,687 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_26_to_34_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:17,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:17,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1434178807, now seen corresponding path program 1 times [2024-11-07 20:58:17,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:17,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456443625] [2024-11-07 20:58:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:17,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456443625] [2024-11-07 20:58:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456443625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:17,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137633181] [2024-11-07 20:58:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:17,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:17,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:17,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:17,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:17,959 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-07 20:58:18,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:18,063 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2024-11-07 20:58:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:18,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 25 [2024-11-07 20:58:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:18,064 INFO L225 Difference]: With dead ends: 86 [2024-11-07 20:58:18,064 INFO L226 Difference]: Without dead ends: 85 [2024-11-07 20:58:18,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 20:58:18,065 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 24 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:18,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 263 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:18,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-07 20:58:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-07 20:58:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.4) internal successors, (77), 75 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2024-11-07 20:58:18,070 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 25 [2024-11-07 20:58:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:18,070 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2024-11-07 20:58:18,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-07 20:58:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2024-11-07 20:58:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 20:58:18,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:18,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:18,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 20:58:18,071 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:18,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:18,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1944632865, now seen corresponding path program 1 times [2024-11-07 20:58:18,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:18,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843716092] [2024-11-07 20:58:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:18,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:18,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:18,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843716092] [2024-11-07 20:58:18,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843716092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:18,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:18,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:18,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68890749] [2024-11-07 20:58:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:18,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:18,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:18,204 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-07 20:58:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:18,354 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2024-11-07 20:58:18,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:18,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 26 [2024-11-07 20:58:18,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:18,355 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:58:18,355 INFO L226 Difference]: Without dead ends: 90 [2024-11-07 20:58:18,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:18,356 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 54 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:18,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 118 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-07 20:58:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2024-11-07 20:58:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 77 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2024-11-07 20:58:18,365 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 26 [2024-11-07 20:58:18,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:18,365 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2024-11-07 20:58:18,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-07 20:58:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2024-11-07 20:58:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 20:58:18,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:18,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:18,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 20:58:18,368 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_26_to_34_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:18,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1509869964, now seen corresponding path program 1 times [2024-11-07 20:58:18,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:18,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540197497] [2024-11-07 20:58:18,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:18,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540197497] [2024-11-07 20:58:18,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540197497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:18,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:18,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:18,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295894892] [2024-11-07 20:58:18,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:18,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:18,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:18,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:18,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:18,635 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-11-07 20:58:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:18,742 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions. [2024-11-07 20:58:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:18,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 26 [2024-11-07 20:58:18,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:18,743 INFO L225 Difference]: With dead ends: 88 [2024-11-07 20:58:18,743 INFO L226 Difference]: Without dead ends: 87 [2024-11-07 20:58:18,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 20:58:18,744 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 23 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:18,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 268 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-07 20:58:18,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-07 20:58:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 78 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2024-11-07 20:58:18,752 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 26 [2024-11-07 20:58:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:18,752 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2024-11-07 20:58:18,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-11-07 20:58:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2024-11-07 20:58:18,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 20:58:18,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:18,754 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:18,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 20:58:18,754 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:18,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash -481408159, now seen corresponding path program 1 times [2024-11-07 20:58:18,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:18,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770660923] [2024-11-07 20:58:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:18,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:18,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:18,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770660923] [2024-11-07 20:58:18,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770660923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:18,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:18,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:18,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452659175] [2024-11-07 20:58:18,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:18,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:18,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:18,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:18,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:18,885 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-07 20:58:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:19,028 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2024-11-07 20:58:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 28 [2024-11-07 20:58:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:19,030 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:58:19,030 INFO L226 Difference]: Without dead ends: 91 [2024-11-07 20:58:19,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:19,031 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 52 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:19,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 115 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:19,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-07 20:58:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2024-11-07 20:58:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 79 states have internal predecessors, (81), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2024-11-07 20:58:19,036 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 28 [2024-11-07 20:58:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:19,037 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2024-11-07 20:58:19,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-07 20:58:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2024-11-07 20:58:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-07 20:58:19,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:19,038 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] [2024-11-07 20:58:19,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 20:58:19,038 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:19,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2038750995, now seen corresponding path program 1 times [2024-11-07 20:58:19,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:19,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929765819] [2024-11-07 20:58:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929765819] [2024-11-07 20:58:19,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929765819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:19,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:19,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001844092] [2024-11-07 20:58:19,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:19,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:19,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:19,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:19,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:19,170 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-07 20:58:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:19,629 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-11-07 20:58:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:19,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 29 [2024-11-07 20:58:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:19,630 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:58:19,630 INFO L226 Difference]: Without dead ends: 91 [2024-11-07 20:58:19,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:19,631 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 51 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:19,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 120 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 20:58:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-07 20:58:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2024-11-07 20:58:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 80 states have internal predecessors, (82), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2024-11-07 20:58:19,636 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 29 [2024-11-07 20:58:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:19,637 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2024-11-07 20:58:19,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-07 20:58:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2024-11-07 20:58:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-07 20:58:19,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:19,638 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] [2024-11-07 20:58:19,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 20:58:19,638 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_26_to_34_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:19,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1123097223, now seen corresponding path program 1 times [2024-11-07 20:58:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299933258] [2024-11-07 20:58:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:19,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489083438] [2024-11-07 20:58:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:19,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:19,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:19,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 20:58:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:19,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-07 20:58:19,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:19,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 20:58:19,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-07 20:58:19,913 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 [2024-11-07 20:58:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:19,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:20,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299933258] [2024-11-07 20:58:20,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489083438] [2024-11-07 20:58:20,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489083438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:58:20,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:58:20,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-07 20:58:20,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661085875] [2024-11-07 20:58:20,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:20,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 20:58:20,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:20,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 20:58:20,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-07 20:58:20,098 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand has 15 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:20,441 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2024-11-07 20:58:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 20:58:20,442 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-11-07 20:58:20,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:20,443 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:58:20,443 INFO L226 Difference]: Without dead ends: 90 [2024-11-07 20:58:20,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-07 20:58:20,444 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 157 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:20,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 322 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-07 20:58:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2024-11-07 20:58:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 78 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2024-11-07 20:58:20,452 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 30 [2024-11-07 20:58:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:20,452 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2024-11-07 20:58:20,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2024-11-07 20:58:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-07 20:58:20,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:20,453 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] [2024-11-07 20:58:20,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 20:58:20,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:20,657 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:20,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1223228643, now seen corresponding path program 1 times [2024-11-07 20:58:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:20,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930814016] [2024-11-07 20:58:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:20,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:20,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930814016] [2024-11-07 20:58:20,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930814016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:20,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:20,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 20:58:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186585669] [2024-11-07 20:58:20,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:20,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 20:58:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:20,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 20:58:20,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 20:58:20,881 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-07 20:58:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:21,108 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2024-11-07 20:58:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 20:58:21,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 30 [2024-11-07 20:58:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:21,109 INFO L225 Difference]: With dead ends: 90 [2024-11-07 20:58:21,109 INFO L226 Difference]: Without dead ends: 89 [2024-11-07 20:58:21,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 20:58:21,110 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:21,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 151 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:21,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-07 20:58:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-07 20:58:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 79 states have internal predecessors, (81), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2024-11-07 20:58:21,116 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 30 [2024-11-07 20:58:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:21,116 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2024-11-07 20:58:21,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-07 20:58:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2024-11-07 20:58:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-07 20:58:21,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:21,117 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] [2024-11-07 20:58:21,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 20:58:21,118 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_26_to_34_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:21,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:21,118 INFO L85 PathProgramCache]: Analyzing trace with hash -456275482, now seen corresponding path program 1 times [2024-11-07 20:58:21,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:21,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446225996] [2024-11-07 20:58:21,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573835813] [2024-11-07 20:58:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:21,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:21,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:21,142 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:21,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 20:58:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:21,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-07 20:58:21,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:21,247 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 [2024-11-07 20:58:21,331 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 [2024-11-07 20:58:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:21,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:23,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:23,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446225996] [2024-11-07 20:58:23,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:23,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573835813] [2024-11-07 20:58:23,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573835813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:23,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 20:58:23,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-07 20:58:23,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857073692] [2024-11-07 20:58:23,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:23,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 20:58:23,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:23,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 20:58:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-07 20:58:23,561 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2024-11-07 20:58:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:23,884 INFO L93 Difference]: Finished difference Result 125 states and 129 transitions. [2024-11-07 20:58:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 20:58:23,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 31 [2024-11-07 20:58:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:23,886 INFO L225 Difference]: With dead ends: 125 [2024-11-07 20:58:23,886 INFO L226 Difference]: Without dead ends: 124 [2024-11-07 20:58:23,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=78, Invalid=263, Unknown=1, NotChecked=0, Total=342 [2024-11-07 20:58:23,886 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:23,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 352 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:23,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-07 20:58:23,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 110. [2024-11-07 20:58:23,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 97 states have internal predecessors, (105), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-07 20:58:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2024-11-07 20:58:23,897 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 31 [2024-11-07 20:58:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:23,897 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2024-11-07 20:58:23,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2024-11-07 20:58:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2024-11-07 20:58:23,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-07 20:58:23,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:23,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:23,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 20:58:24,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 20:58:24,104 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:24,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash -734617681, now seen corresponding path program 1 times [2024-11-07 20:58:24,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:24,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943030212] [2024-11-07 20:58:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:24,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:24,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:24,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:24,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943030212] [2024-11-07 20:58:24,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943030212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:24,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:24,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:24,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056433553] [2024-11-07 20:58:24,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:24,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:24,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:24,406 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-07 20:58:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:24,771 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2024-11-07 20:58:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:24,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 31 [2024-11-07 20:58:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:24,773 INFO L225 Difference]: With dead ends: 112 [2024-11-07 20:58:24,773 INFO L226 Difference]: Without dead ends: 100 [2024-11-07 20:58:24,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:24,773 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 29 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:24,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 158 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 20:58:24,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-07 20:58:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-07 20:58:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 88 states have internal predecessors, (95), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-07 20:58:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2024-11-07 20:58:24,780 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 31 [2024-11-07 20:58:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2024-11-07 20:58:24,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-07 20:58:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2024-11-07 20:58:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-07 20:58:24,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:24,781 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 20:58:24,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 20:58:24,781 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_26_to_34_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:24,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1259637989, now seen corresponding path program 1 times [2024-11-07 20:58:24,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:24,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609600287] [2024-11-07 20:58:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:25,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:25,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609600287] [2024-11-07 20:58:25,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609600287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:25,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188989731] [2024-11-07 20:58:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:25,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:25,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:25,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:25,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 20:58:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:25,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-07 20:58:25,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:25,225 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 [2024-11-07 20:58:25,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 20:58:25,500 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 [2024-11-07 20:58:25,545 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 [2024-11-07 20:58:25,561 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 [2024-11-07 20:58:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:25,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:25,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188989731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:58:25,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 20:58:25,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 23 [2024-11-07 20:58:25,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422626316] [2024-11-07 20:58:25,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:25,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 20:58:25,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:25,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 20:58:25,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-11-07 20:58:25,835 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand has 24 states, 20 states have (on average 3.7) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 20:58:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:26,759 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2024-11-07 20:58:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 20:58:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 3.7) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (8), 7 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 32 [2024-11-07 20:58:26,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:26,761 INFO L225 Difference]: With dead ends: 150 [2024-11-07 20:58:26,762 INFO L226 Difference]: Without dead ends: 148 [2024-11-07 20:58:26,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=227, Invalid=1179, Unknown=0, NotChecked=0, Total=1406 [2024-11-07 20:58:26,763 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 253 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:26,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 511 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 20:58:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-07 20:58:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 124. [2024-11-07 20:58:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 109 states have internal predecessors, (124), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-07 20:58:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2024-11-07 20:58:26,779 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 32 [2024-11-07 20:58:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:26,779 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2024-11-07 20:58:26,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 3.7) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 20:58:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2024-11-07 20:58:26,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-07 20:58:26,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:26,780 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] [2024-11-07 20:58:26,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 20:58:26,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:26,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_26_to_34_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:26,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash -394071928, now seen corresponding path program 1 times [2024-11-07 20:58:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797620112] [2024-11-07 20:58:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:26,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:27,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:27,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:27,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797620112] [2024-11-07 20:58:27,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797620112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:27,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274527630] [2024-11-07 20:58:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:27,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:27,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 20:58:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:27,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-07 20:58:27,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:27,426 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 [2024-11-07 20:58:27,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 20:58:27,669 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 [2024-11-07 20:58:27,705 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 [2024-11-07 20:58:27,718 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 [2024-11-07 20:58:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:27,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:27,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274527630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:58:27,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 20:58:27,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 23 [2024-11-07 20:58:27,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913462715] [2024-11-07 20:58:27,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:27,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 20:58:27,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:27,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 20:58:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-07 20:58:27,938 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand has 24 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 20:58:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:28,312 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2024-11-07 20:58:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 20:58:28,312 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 8 states have call successors, (8), 7 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 33 [2024-11-07 20:58:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:28,313 INFO L225 Difference]: With dead ends: 132 [2024-11-07 20:58:28,313 INFO L226 Difference]: Without dead ends: 131 [2024-11-07 20:58:28,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2024-11-07 20:58:28,315 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 153 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:28,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 392 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-07 20:58:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2024-11-07 20:58:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 109 states have internal predecessors, (123), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-07 20:58:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2024-11-07 20:58:28,328 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 33 [2024-11-07 20:58:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:28,328 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2024-11-07 20:58:28,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 20:58:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2024-11-07 20:58:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 20:58:28,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:28,329 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] [2024-11-07 20:58:28,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 20:58:28,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-07 20:58:28,530 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_26_to_34_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:28,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash 668672189, now seen corresponding path program 1 times [2024-11-07 20:58:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:28,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707634121] [2024-11-07 20:58:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211409205] [2024-11-07 20:58:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:28,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:28,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:28,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 20:58:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:28,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-07 20:58:28,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:28,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 20:58:28,673 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 [2024-11-07 20:58:28,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-07 20:58:28,895 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 23 treesize of output 3 [2024-11-07 20:58:28,935 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 33 treesize of output 17 [2024-11-07 20:58:28,974 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 [2024-11-07 20:58:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:29,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:31,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:31,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707634121] [2024-11-07 20:58:31,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:31,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211409205] [2024-11-07 20:58:31,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211409205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:31,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 20:58:31,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-07 20:58:31,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74213525] [2024-11-07 20:58:31,767 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:31,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 20:58:31,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 20:58:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-07 20:58:31,768 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 12 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-11-07 20:58:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:32,187 INFO L93 Difference]: Finished difference Result 130 states and 144 transitions. [2024-11-07 20:58:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 20:58:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 34 [2024-11-07 20:58:32,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:32,188 INFO L225 Difference]: With dead ends: 130 [2024-11-07 20:58:32,188 INFO L226 Difference]: Without dead ends: 129 [2024-11-07 20:58:32,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2024-11-07 20:58:32,190 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 71 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:32,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 329 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 20:58:32,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-07 20:58:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2024-11-07 20:58:32,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 89 states have (on average 1.3707865168539326) internal successors, (122), 109 states have internal predecessors, (122), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-07 20:58:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2024-11-07 20:58:32,202 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 34 [2024-11-07 20:58:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:32,202 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2024-11-07 20:58:32,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-11-07 20:58:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2024-11-07 20:58:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-07 20:58:32,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:32,202 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:32,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 20:58:32,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:32,403 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_26_to_34_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:32,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:32,404 INFO L85 PathProgramCache]: Analyzing trace with hash -745998550, now seen corresponding path program 1 times [2024-11-07 20:58:32,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:32,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437177344] [2024-11-07 20:58:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:32,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:32,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:58:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:32,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437177344] [2024-11-07 20:58:32,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437177344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015711852] [2024-11-07 20:58:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:32,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:32,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:32,727 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 20:58:32,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 20:58:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:32,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-07 20:58:32,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:32,840 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 [2024-11-07 20:58:32,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 20:58:33,059 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 [2024-11-07 20:58:33,092 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 [2024-11-07 20:58:33,107 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 [2024-11-07 20:58:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:58:33,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:58:46,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015711852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:58:46,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:58:46,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2024-11-07 20:58:46,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843867599] [2024-11-07 20:58:46,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:58:46,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 20:58:46,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 20:58:46,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=430, Unknown=3, NotChecked=0, Total=506 [2024-11-07 20:58:46,423 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand has 17 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:46,857 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2024-11-07 20:58:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 20:58:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2024-11-07 20:58:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:46,858 INFO L225 Difference]: With dead ends: 130 [2024-11-07 20:58:46,858 INFO L226 Difference]: Without dead ends: 129 [2024-11-07 20:58:46,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=124, Invalid=629, Unknown=3, NotChecked=0, Total=756 [2024-11-07 20:58:46,859 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 71 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:46,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 474 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 20:58:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-07 20:58:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2024-11-07 20:58:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 109 states have internal predecessors, (121), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-07 20:58:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2024-11-07 20:58:46,871 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 35 [2024-11-07 20:58:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:46,871 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2024-11-07 20:58:46,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2024-11-07 20:58:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 20:58:46,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:46,871 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] [2024-11-07 20:58:46,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 20:58:47,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:47,072 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_26_to_34_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-07 20:58:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1651118497, now seen corresponding path program 1 times [2024-11-07 20:58:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:47,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515817761] [2024-11-07 20:58:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:47,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat