./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u2.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_geo1-u2.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', 'c67c252daff5c7ee06d488793b0dcb7582651cc84d24dd97a82d484d18291433'] 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_geo1-u2.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 c67c252daff5c7ee06d488793b0dcb7582651cc84d24dd97a82d484d18291433 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 20:57:29,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 20:57:30,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 20:57:30,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 20:57:30,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 20:57:30,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 20:57:30,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 20:57:30,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 20:57:30,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 20:57:30,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 20:57:30,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 20:57:30,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 20:57:30,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 20:57:30,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:57:30,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 20:57:30,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 20:57:30,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 20:57:30,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 20:57:30,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 20:57:30,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 20:57:30,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 20:57:30,081 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 -> c67c252daff5c7ee06d488793b0dcb7582651cc84d24dd97a82d484d18291433 [2024-11-07 20:57:30,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 20:57:30,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 20:57:30,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 20:57:30,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 20:57:30,283 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 20:57:30,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u2.c [2024-11-07 20:57:31,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 20:57:31,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 20:57:31,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u2.c [2024-11-07 20:57:31,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2836c3b84/f4a04320cb2045689ab1c13cb955ef68/FLAGdb9ac9b29 [2024-11-07 20:57:31,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2836c3b84/f4a04320cb2045689ab1c13cb955ef68 [2024-11-07 20:57:31,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 20:57:31,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 20:57:31,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 20:57:31,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 20:57:31,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 20:57:31,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:57:31" (1/1) ... [2024-11-07 20:57:31,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a929559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:31, skipping insertion in model container [2024-11-07 20:57:31,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:57:31" (1/1) ... [2024-11-07 20:57:31,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 20:57:32,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:57:32,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 20:57:32,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:57:32,066 INFO L204 MainTranslator]: Completed translation [2024-11-07 20:57:32,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32 WrapperNode [2024-11-07 20:57:32,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 20:57:32,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 20:57:32,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 20:57:32,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 20:57:32,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,093 INFO L138 Inliner]: procedures = 16, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2024-11-07 20:57:32,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 20:57:32,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 20:57:32,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 20:57:32,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 20:57:32,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,118 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 6, 5, 2, 4, 8]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 2, 1, 2, 3]. [2024-11-07 20:57:32,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 20:57:32,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 20:57:32,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 20:57:32,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 20:57:32,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (1/1) ... [2024-11-07 20:57:32,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:57:32,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:32,172 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 20:57:32,174 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 20:57:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2024-11-07 20:57:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 20:57:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 20:57:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 20:57:32,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 20:57:32,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 20:57:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 20:57:32,256 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 20:57:32,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 20:57:32,463 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-07 20:57:32,463 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 20:57:32,472 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 20:57:32,472 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 20:57:32,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:57:32 BoogieIcfgContainer [2024-11-07 20:57:32,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 20:57:32,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 20:57:32,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 20:57:32,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 20:57:32,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:57:31" (1/3) ... [2024-11-07 20:57:32,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47401152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:57:32, skipping insertion in model container [2024-11-07 20:57:32,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:57:32" (2/3) ... [2024-11-07 20:57:32,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47401152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:57:32, skipping insertion in model container [2024-11-07 20:57:32,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:57:32" (3/3) ... [2024-11-07 20:57:32,479 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1-u2.c [2024-11-07 20:57:32,490 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 20:57:32,491 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-07 20:57:32,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 20:57:32,528 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;@308d796c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 20:57:32,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-07 20:57:32,531 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 20:57:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-07 20:57:32,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:32,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 20:57:32,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:32,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2014108657, now seen corresponding path program 1 times [2024-11-07 20:57:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:32,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032426492] [2024-11-07 20:57:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138795709] [2024-11-07 20:57:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:32,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:32,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:32,634 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 20:57:32,649 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 20:57:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:32,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 20:57:32,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:32,782 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 20:57:32,818 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 20:57:32,831 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 20:57:32,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:32,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:32,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032426492] [2024-11-07 20:57:32,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:32,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138795709] [2024-11-07 20:57:32,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138795709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:32,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:32,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:57:32,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800656210] [2024-11-07 20:57:32,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:32,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:57:32,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:32,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:57:32,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:57:32,850 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 20:57:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:33,002 INFO L93 Difference]: Finished difference Result 169 states and 185 transitions. [2024-11-07 20:57:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:57:33,003 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 20:57:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:33,007 INFO L225 Difference]: With dead ends: 169 [2024-11-07 20:57:33,007 INFO L226 Difference]: Without dead ends: 99 [2024-11-07 20:57:33,009 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 20:57:33,010 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 75 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:33,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 243 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:57:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-07 20:57:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 75. [2024-11-07 20:57:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 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 20:57:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2024-11-07 20:57:33,043 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 6 [2024-11-07 20:57:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:33,043 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2024-11-07 20:57:33,043 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 20:57:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2024-11-07 20:57:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 20:57:33,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:33,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:57:33,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 20:57:33,249 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 20:57:33,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:33,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:33,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1987141110, now seen corresponding path program 1 times [2024-11-07 20:57:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:33,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741272315] [2024-11-07 20:57:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777959286] [2024-11-07 20:57:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:33,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:33,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:33,285 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 20:57:33,286 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 20:57:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:33,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 20:57:33,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:33,361 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 20:57:33,382 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 20:57:33,393 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 20:57:33,394 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:33,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741272315] [2024-11-07 20:57:33,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777959286] [2024-11-07 20:57:33,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777959286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:33,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:33,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:57:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656994908] [2024-11-07 20:57:33,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:33,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:57:33,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:33,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:57:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:57:33,395 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 20:57:33,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:33,499 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2024-11-07 20:57:33,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:57:33,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 7 [2024-11-07 20:57:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:33,500 INFO L225 Difference]: With dead ends: 99 [2024-11-07 20:57:33,500 INFO L226 Difference]: Without dead ends: 98 [2024-11-07 20:57:33,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 20:57:33,501 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 72 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:33,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 212 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:57:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-07 20:57:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2024-11-07 20:57:33,506 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 20:57:33,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2024-11-07 20:57:33,507 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 7 [2024-11-07 20:57:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:33,507 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2024-11-07 20:57:33,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 20:57:33,509 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2024-11-07 20:57:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 20:57:33,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:33,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:57:33,522 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 20:57:33,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:33,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:33,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1471832305, now seen corresponding path program 1 times [2024-11-07 20:57:33,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:33,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758503948] [2024-11-07 20:57:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:33,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339979271] [2024-11-07 20:57:33,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:33,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:33,774 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 20:57:33,776 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 20:57:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:33,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 20:57:33,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:33,845 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 20:57:33,885 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 20:57:33,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758503948] [2024-11-07 20:57:33,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339979271] [2024-11-07 20:57:33,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339979271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:33,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:33,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:57:33,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206691592] [2024-11-07 20:57:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:33,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:57:33,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:57:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:57:33,887 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 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 20:57:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:34,013 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2024-11-07 20:57:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:57:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 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 20:57:34,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:34,014 INFO L225 Difference]: With dead ends: 98 [2024-11-07 20:57:34,014 INFO L226 Difference]: Without dead ends: 97 [2024-11-07 20:57:34,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:57:34,015 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:34,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 248 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:57:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-07 20:57:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 75. [2024-11-07 20:57:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.608695652173913) internal successors, (74), 68 states have internal predecessors, (74), 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 20:57:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2024-11-07 20:57:34,023 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 8 [2024-11-07 20:57:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:34,023 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2024-11-07 20:57:34,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 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 20:57:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2024-11-07 20:57:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-07 20:57:34,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:34,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:57:34,038 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 20:57:34,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:34,224 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_28_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:34,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1617838760, now seen corresponding path program 1 times [2024-11-07 20:57:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:34,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787083642] [2024-11-07 20:57:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:34,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:34,598 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 20:57:34,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:34,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787083642] [2024-11-07 20:57:34,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787083642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:34,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:34,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:57:34,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321735108] [2024-11-07 20:57:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:34,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:57:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:57:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:57:34,600 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:57:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:35,223 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2024-11-07 20:57:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:57:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-07 20:57:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:35,225 INFO L225 Difference]: With dead ends: 97 [2024-11-07 20:57:35,225 INFO L226 Difference]: Without dead ends: 96 [2024-11-07 20:57:35,226 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 20:57:35,226 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 64 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:35,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 218 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 20:57:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-07 20:57:35,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2024-11-07 20:57:35,231 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 20:57:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2024-11-07 20:57:35,231 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 9 [2024-11-07 20:57:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:35,232 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2024-11-07 20:57:35,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:57:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2024-11-07 20:57:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 20:57:35,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:35,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:57:35,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 20:57:35,232 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_28_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1386606035, now seen corresponding path program 1 times [2024-11-07 20:57:35,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:35,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058783069] [2024-11-07 20:57:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:35,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299763529] [2024-11-07 20:57:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:35,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:35,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:35,260 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 20:57:35,261 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 20:57:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:35,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-07 20:57:35,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:35,348 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 20:57:35,350 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 17 treesize of output 13 [2024-11-07 20:57:35,355 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 20:57:35,420 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 21 treesize of output 13 [2024-11-07 20:57:35,490 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 20:57:35,510 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 20:57:35,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:35,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:35,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058783069] [2024-11-07 20:57:35,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:35,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299763529] [2024-11-07 20:57:35,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299763529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:35,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:35,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 20:57:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130637538] [2024-11-07 20:57:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:35,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 20:57:35,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 20:57:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 20:57:35,512 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 20:57:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:35,735 INFO L93 Difference]: Finished difference Result 92 states and 95 transitions. [2024-11-07 20:57:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 20:57:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 20:57:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:35,736 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:57:35,736 INFO L226 Difference]: Without dead ends: 88 [2024-11-07 20:57:35,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 20:57:35,736 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 65 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:35,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 283 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:57:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-07 20:57:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 75. [2024-11-07 20:57:35,744 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 20:57:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2024-11-07 20:57:35,746 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 10 [2024-11-07 20:57:35,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:35,747 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2024-11-07 20:57:35,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 20:57:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2024-11-07 20:57:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 20:57:35,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:35,747 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 20:57:35,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 20:57:35,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:35,948 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_28_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:35,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1992309591, now seen corresponding path program 1 times [2024-11-07 20:57:35,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:35,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441717167] [2024-11-07 20:57:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:35,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:36,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:57:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:36,177 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 20:57:36,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:36,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441717167] [2024-11-07 20:57:36,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441717167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:36,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:36,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:57:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714370872] [2024-11-07 20:57:36,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:36,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:57:36,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:36,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:57:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:57:36,178 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 20:57:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:36,243 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2024-11-07 20:57:36,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:57:36,250 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 20:57:36,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:36,250 INFO L225 Difference]: With dead ends: 92 [2024-11-07 20:57:36,250 INFO L226 Difference]: Without dead ends: 91 [2024-11-07 20:57:36,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:57:36,251 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 34 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:36,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 308 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:57:36,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-07 20:57:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2024-11-07 20:57:36,258 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 20:57:36,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-07 20:57:36,259 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 21 [2024-11-07 20:57:36,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:36,259 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-07 20:57:36,259 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 20:57:36,259 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-07 20:57:36,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 20:57:36,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:36,260 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 20:57:36,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 20:57:36,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_28_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:36,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:36,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1632055236, now seen corresponding path program 1 times [2024-11-07 20:57:36,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:36,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513661615] [2024-11-07 20:57:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:36,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:36,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 20:57:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:36,327 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 20:57:36,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:36,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513661615] [2024-11-07 20:57:36,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513661615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:36,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:36,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 20:57:36,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092940851] [2024-11-07 20:57:36,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:36,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 20:57:36,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:36,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 20:57:36,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 20:57:36,329 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 20:57:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:36,346 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2024-11-07 20:57:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 20:57:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 20:57:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:36,348 INFO L225 Difference]: With dead ends: 76 [2024-11-07 20:57:36,349 INFO L226 Difference]: Without dead ends: 75 [2024-11-07 20:57:36,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 20:57:36,350 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:36,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:57:36,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-07 20:57:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-07 20:57:36,359 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 20:57:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2024-11-07 20:57:36,360 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 22 [2024-11-07 20:57:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:36,361 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2024-11-07 20:57:36,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 20:57:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2024-11-07 20:57:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-07 20:57:36,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:36,363 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 20:57:36,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 20:57:36,363 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_28_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:36,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:36,363 INFO L85 PathProgramCache]: Analyzing trace with hash -945895175, now seen corresponding path program 1 times [2024-11-07 20:57:36,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:36,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152587828] [2024-11-07 20:57:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:36,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916743565] [2024-11-07 20:57:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:36,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:36,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:36,389 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 20:57:36,390 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 20:57:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:36,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 20:57:36,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:36,465 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 20:57:36,530 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 20:57:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:57:36,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:36,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:36,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152587828] [2024-11-07 20:57:36,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:36,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916743565] [2024-11-07 20:57:36,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916743565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:36,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:36,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:57:36,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756515397] [2024-11-07 20:57:36,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:36,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:57:36,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:36,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:57:36,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:57:36,538 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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 20:57:40,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:57:44,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:57:44,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:44,673 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2024-11-07 20:57:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 20:57:44,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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 20:57:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:44,674 INFO L225 Difference]: With dead ends: 84 [2024-11-07 20:57:44,675 INFO L226 Difference]: Without dead ends: 82 [2024-11-07 20:57:44,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 20:57:44,675 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 96 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:44,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 138 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2024-11-07 20:57:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-07 20:57:44,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2024-11-07 20:57:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 67 states have internal predecessors, (68), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:57:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2024-11-07 20:57:44,686 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 23 [2024-11-07 20:57:44,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:44,686 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2024-11-07 20:57:44,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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 20:57:44,686 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2024-11-07 20:57:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 20:57:44,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:44,686 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 20:57:44,705 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 20:57:44,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:44,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:44,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:44,887 INFO L85 PathProgramCache]: Analyzing trace with hash 741718635, now seen corresponding path program 1 times [2024-11-07 20:57:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105948534] [2024-11-07 20:57:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:44,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416288595] [2024-11-07 20:57:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:44,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:44,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:44,920 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 20:57:44,921 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 20:57:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:44,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 20:57:44,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:45,000 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 20:57:45,034 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 20:57:45,040 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 20:57:45,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:45,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:45,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105948534] [2024-11-07 20:57:45,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:45,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416288595] [2024-11-07 20:57:45,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416288595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:45,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:45,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 20:57:45,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699531188] [2024-11-07 20:57:45,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:45,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 20:57:45,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 20:57:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 20:57:45,041 INFO L87 Difference]: Start difference. First operand 75 states and 78 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 20:57:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:57:45,097 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2024-11-07 20:57:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 20:57:45,097 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 20:57:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:57:45,098 INFO L225 Difference]: With dead ends: 80 [2024-11-07 20:57:45,098 INFO L226 Difference]: Without dead ends: 79 [2024-11-07 20:57:45,098 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 20:57:45,098 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 24 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:57:45,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 145 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:57:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-07 20:57:45,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2024-11-07 20:57:45,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.4) internal successors, (70), 68 states have internal predecessors, (70), 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 20:57:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2024-11-07 20:57:45,107 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 24 [2024-11-07 20:57:45,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:57:45,107 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2024-11-07 20:57:45,108 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 20:57:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2024-11-07 20:57:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 20:57:45,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:57:45,108 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 20:57:45,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 20:57:45,308 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,SelfDestructingSolverStorable8 [2024-11-07 20:57:45,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_28_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:57:45,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:57:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash 742020710, now seen corresponding path program 1 times [2024-11-07 20:57:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:57:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65631559] [2024-11-07 20:57:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:57:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:57:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185404607] [2024-11-07 20:57:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:57:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:57:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:57:45,327 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 20:57:45,328 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 20:57:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:57:45,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-07 20:57:45,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:57:45,412 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 20:57:52,783 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 23 treesize of output 15 [2024-11-07 20:57:52,786 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 19 treesize of output 11 [2024-11-07 20:57:53,347 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 20:57:53,347 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:57:53,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:57:53,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65631559] [2024-11-07 20:57:53,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:57:53,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185404607] [2024-11-07 20:57:53,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185404607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:57:53,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:57:53,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:57:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295751895] [2024-11-07 20:57:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:57:53,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:57:53,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:57:53,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:57:53,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-07 20:57:53,348 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 20:57:57,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:01,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:06,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:06,195 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2024-11-07 20:58:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 20:58:06,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 24 [2024-11-07 20:58:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:06,196 INFO L225 Difference]: With dead ends: 77 [2024-11-07 20:58:06,196 INFO L226 Difference]: Without dead ends: 76 [2024-11-07 20:58:06,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=25, Invalid=46, Unknown=1, NotChecked=0, Total=72 [2024-11-07 20:58:06,197 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 49 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:06,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 107 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2024-11-07 20:58:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-07 20:58:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-07 20:58:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.38) internal successors, (69), 67 states have internal predecessors, (69), 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 20:58:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-07 20:58:06,202 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 24 [2024-11-07 20:58:06,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:06,202 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-07 20:58:06,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 20:58:06,202 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-07 20:58:06,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 20:58:06,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:06,202 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 20:58:06,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-07 20:58:06,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:06,406 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:06,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:06,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1518441290, now seen corresponding path program 1 times [2024-11-07 20:58:06,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:06,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564180615] [2024-11-07 20:58:06,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:06,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:06,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5819861] [2024-11-07 20:58:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:06,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:06,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:06,427 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 20:58:06,428 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 20:58:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:06,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 20:58:06,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:06,499 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 20:58:06,532 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 20:58:06,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:06,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:06,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564180615] [2024-11-07 20:58:06,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:06,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5819861] [2024-11-07 20:58:06,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5819861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:06,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:06,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 20:58:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160480668] [2024-11-07 20:58:06,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:06,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 20:58:06,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:06,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 20:58:06,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 20:58:06,534 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 20:58:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:06,588 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2024-11-07 20:58:06,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 20:58:06,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 25 [2024-11-07 20:58:06,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:06,589 INFO L225 Difference]: With dead ends: 78 [2024-11-07 20:58:06,589 INFO L226 Difference]: Without dead ends: 77 [2024-11-07 20:58:06,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 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 20:58:06,590 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:06,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 144 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:58:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-07 20:58:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-07 20:58:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 68 states have internal predecessors, (70), 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 20:58:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2024-11-07 20:58:06,595 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 25 [2024-11-07 20:58:06,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:06,595 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2024-11-07 20:58:06,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 20:58:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2024-11-07 20:58:06,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 20:58:06,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:06,596 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, 1, 1, 1, 1] [2024-11-07 20:58:06,628 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 20:58:06,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:06,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:06,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:06,797 INFO L85 PathProgramCache]: Analyzing trace with hash -172960179, now seen corresponding path program 1 times [2024-11-07 20:58:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:06,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695447298] [2024-11-07 20:58:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:06,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:06,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 20:58:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:06,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 20:58:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:06,901 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 20:58:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695447298] [2024-11-07 20:58:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695447298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:06,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:06,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 20:58:06,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624435132] [2024-11-07 20:58:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:06,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 20:58:06,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 20:58:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 20:58:06,903 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 20:58:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:07,095 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2024-11-07 20:58:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 20:58:07,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-11-07 20:58:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:07,096 INFO L225 Difference]: With dead ends: 77 [2024-11-07 20:58:07,096 INFO L226 Difference]: Without dead ends: 76 [2024-11-07 20:58:07,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 20:58:07,096 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:07,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 120 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 20:58:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-07 20:58:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-07 20:58:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 67 states have internal predecessors, (69), 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 20:58:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-07 20:58:07,101 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 26 [2024-11-07 20:58:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:07,101 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-07 20:58:07,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 20:58:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-07 20:58:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 20:58:07,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:07,102 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 20:58:07,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 20:58:07,102 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_28_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:07,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash 117333256, now seen corresponding path program 1 times [2024-11-07 20:58:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:07,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599111735] [2024-11-07 20:58:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:07,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:07,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224616519] [2024-11-07 20:58:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:07,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:07,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:07,119 INFO L229 MonitoredProcess]: Starting monitored process 10 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 20:58:07,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 20:58:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:07,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 20:58:07,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:07,215 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 20:58:07,284 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 20:58:07,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:07,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599111735] [2024-11-07 20:58:07,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224616519] [2024-11-07 20:58:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224616519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:07,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:07,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:07,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408140779] [2024-11-07 20:58:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:07,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:07,286 INFO L87 Difference]: Start difference. First operand 76 states and 79 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 20:58:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:07,358 INFO L93 Difference]: Finished difference Result 86 states and 88 transitions. [2024-11-07 20:58:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:07,359 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 20:58:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:07,360 INFO L225 Difference]: With dead ends: 86 [2024-11-07 20:58:07,360 INFO L226 Difference]: Without dead ends: 85 [2024-11-07 20:58:07,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 20:58:07,360 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 35 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:07,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 158 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-07 20:58:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-07 20:58:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.305084745762712) internal successors, (77), 75 states have internal predecessors, (77), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2024-11-07 20:58:07,367 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 26 [2024-11-07 20:58:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:07,368 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2024-11-07 20:58:07,368 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 20:58:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2024-11-07 20:58:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 20:58:07,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:07,368 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] [2024-11-07 20:58:07,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 20:58:07,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:07,569 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:07,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1066798164, now seen corresponding path program 1 times [2024-11-07 20:58:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81920880] [2024-11-07 20:58:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:07,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67193580] [2024-11-07 20:58:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:07,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:07,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:07,598 INFO L229 MonitoredProcess]: Starting monitored process 11 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 20:58:07,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 20:58:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:07,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 20:58:07,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:07,684 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 20:58:07,773 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 20:58:07,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81920880] [2024-11-07 20:58:07,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67193580] [2024-11-07 20:58:07,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67193580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:07,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:07,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 20:58:07,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321621142] [2024-11-07 20:58:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:07,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:58:07,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:58:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:07,775 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:07,839 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2024-11-07 20:58:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:58:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2024-11-07 20:58:07,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:07,840 INFO L225 Difference]: With dead ends: 90 [2024-11-07 20:58:07,840 INFO L226 Difference]: Without dead ends: 89 [2024-11-07 20:58:07,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:58:07,841 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 21 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:07,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 121 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:07,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-07 20:58:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-07 20:58:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 77 states have internal predecessors, (79), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 89 transitions. [2024-11-07 20:58:07,846 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 89 transitions. Word has length 27 [2024-11-07 20:58:07,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:07,846 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 89 transitions. [2024-11-07 20:58:07,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:58:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2024-11-07 20:58:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 20:58:07,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:07,847 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] [2024-11-07 20:58:07,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 20:58:08,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-07 20:58:08,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_28_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:08,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash -657636291, now seen corresponding path program 1 times [2024-11-07 20:58:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:08,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541738050] [2024-11-07 20:58:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141728248] [2024-11-07 20:58:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:08,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:08,076 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:58:08,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 20:58:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:08,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 20:58:08,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:08,156 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 13 [2024-11-07 20:58:08,169 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 20:58:08,296 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 20:58:08,304 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 20:58:08,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:08,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:08,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541738050] [2024-11-07 20:58:08,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:08,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141728248] [2024-11-07 20:58:08,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141728248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:08,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:08,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:08,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883434054] [2024-11-07 20:58:08,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:08,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:08,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:08,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:08,305 INFO L87 Difference]: Start difference. First operand 87 states and 89 transitions. Second operand has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 20:58:12,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:16,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:20,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 20:58:20,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:20,465 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2024-11-07 20:58:20,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:20,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 27 [2024-11-07 20:58:20,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:20,468 INFO L225 Difference]: With dead ends: 95 [2024-11-07 20:58:20,468 INFO L226 Difference]: Without dead ends: 94 [2024-11-07 20:58:20,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 20:58:20,469 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 40 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:58:20,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 222 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2024-11-07 20:58:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-07 20:58:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2024-11-07 20:58:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 78 states have internal predecessors, (80), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2024-11-07 20:58:20,474 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 27 [2024-11-07 20:58:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:20,474 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2024-11-07 20:58:20,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 20:58:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2024-11-07 20:58:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 20:58:20,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:20,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:20,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-07 20:58:20,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 20:58:20,675 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:20,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1288995375, now seen corresponding path program 1 times [2024-11-07 20:58:20,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:20,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026794968] [2024-11-07 20:58:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:20,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442055904] [2024-11-07 20:58:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:20,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:20,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:20,700 INFO L229 MonitoredProcess]: Starting monitored process 13 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 20:58:20,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 20:58:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:58:20,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 20:58:20,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:58:20,787 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 20:58:20,792 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 13 [2024-11-07 20:58:20,797 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 20:58:20,941 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 20:58:20,957 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 20:58:20,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:58:20,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:58:20,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026794968] [2024-11-07 20:58:20,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:58:20,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442055904] [2024-11-07 20:58:20,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442055904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:58:20,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:58:20,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 20:58:20,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527604758] [2024-11-07 20:58:20,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:58:20,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 20:58:20,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:58:20,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 20:58:20,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:20,958 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 20:58:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:58:21,044 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2024-11-07 20:58:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 20:58:21,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 20:58:21,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:58:21,045 INFO L225 Difference]: With dead ends: 91 [2024-11-07 20:58:21,045 INFO L226 Difference]: Without dead ends: 90 [2024-11-07 20:58:21,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:58:21,045 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 20 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 151 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 20:58:21,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 151 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:58:21,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-07 20:58:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-11-07 20:58:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 79 states have internal predecessors, (81), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-07 20:58:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2024-11-07 20:58:21,050 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 28 [2024-11-07 20:58:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:58:21,050 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2024-11-07 20:58:21,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 20:58:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2024-11-07 20:58:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 20:58:21,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:58:21,050 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 20:58:21,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 20:58:21,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:21,251 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_28_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-07 20:58:21,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:58:21,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1088111530, now seen corresponding path program 1 times [2024-11-07 20:58:21,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:58:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996929188] [2024-11-07 20:58:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:58:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:58:21,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437410083] [2024-11-07 20:58:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:58:21,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:58:21,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:58:21,274 INFO L229 MonitoredProcess]: Starting monitored process 14 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 20:58:21,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 20:58:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 20:58:21,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 20:58:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 20:58:21,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 20:58:21,476 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 20:58:21,477 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_28_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-07 20:58:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-07 20:58:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-07 20:58:21,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-07 20:58:21,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 20:58:21,682 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:58:21,709 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 20:58:21,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:58:21 BoogieIcfgContainer [2024-11-07 20:58:21,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 20:58:21,713 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 20:58:21,713 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 20:58:21,713 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 20:58:21,714 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:57:32" (3/4) ... [2024-11-07 20:58:21,714 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-07 20:58:21,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 20:58:21,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 20:58:21,748 INFO L158 Benchmark]: Toolchain (without parser) took 49827.95ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 91.6MB in the beginning and 93.2MB in the end (delta: -1.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,748 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:58:21,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.48ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.48ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:58:21,749 INFO L158 Benchmark]: Boogie Preprocessor took 42.79ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,749 INFO L158 Benchmark]: RCFGBuilder took 335.58ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 58.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,749 INFO L158 Benchmark]: TraceAbstraction took 49238.50ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 58.3MB in the beginning and 96.7MB in the end (delta: -38.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,750 INFO L158 Benchmark]: Witness Printer took 32.70ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 93.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 20:58:21,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.48ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.48ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.79ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 335.58ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 58.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 49238.50ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 58.3MB in the beginning and 96.7MB in the end (delta: -38.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 32.70ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 93.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 67]: integer overflow possible integer overflow possible We found a FailurePath: [L78] unsigned int z; [L79] unsigned int k; [L80] long long x; [L81] long long y; [L82] long long c; [L83] z = __VERIFIER_nondet_uint() [L84] k = __VERIFIER_nondet_uint() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 [L88] CALL func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L57] EXPR (*x) * (*z) [L57] EXPR \read(*x) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L57] EXPR ((*x) * (*z)) - (*x) [L57] EXPR \read(*y) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L57] EXPR (((*x) * (*z)) - (*x)) - (*y) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L57] EXPR ((((*x) * (*z)) - (*x)) - (*y)) + 1 VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L57] CALL __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(cond)=1] [L38] COND FALSE !(!cond) VAL [\old(cond)=1] [L57] RET __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L58] EXPR \read(*c) [L58] EXPR \read(*k) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L58] COND FALSE !(!((*c) < (*k))) [L65] EXPR \read(*c) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L65] EXPR (*c) + 1 [L65] *c = (*c) + 1 [L66] EXPR \read(*x) [L66] EXPR \read(*z) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L66] EXPR (*x) * (*z) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L66] EXPR ((*x) * (*z)) + 1 [L66] *x = ((*x) * (*z)) + 1 [L67] EXPR \read(*y) [L67] EXPR \read(*z) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] [L67] (*y) * (*z) VAL [\old(c)={8:0}, \old(k)={4:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, c={8:0}, k={4:0}, x={6:0}, y={5:0}, z={7:0}] - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 49.2s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 714 SdHoareTripleChecker+Valid, 34.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 713 mSDsluCounter, 2980 SdHoareTripleChecker+Invalid, 34.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2284 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1171 IncrementalHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 696 mSDtfsCounter, 1171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=16, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 136 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 604 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 297 ConstructedInterpolants, 16 QuantifiedInterpolants, 1984 SizeOfPredicates, 88 NumberOfNonLiveVariables, 2059 ConjunctsInSsa, 221 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-07 20:58:21,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)