./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c'] 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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 10:35:01,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 10:35:01,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 10:35:01,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 10:35:01,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 10:35:01,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 10:35:01,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 10:35:01,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 10:35:01,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 10:35:01,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 10:35:01,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 10:35:01,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 10:35:01,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 10:35:01,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 10:35:01,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 10:35:01,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 10:35:01,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 10:35:01,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 10:35:01,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 10:35:01,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 10:35:01,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 10:35:01,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 10:35:01,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 10:35:01,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 10:35:01,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 10:35:01,267 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 ! call(reach_error())) ) 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 -> 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c [2024-11-07 10:35:01,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 10:35:01,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 10:35:01,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 10:35:01,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 10:35:01,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 10:35:01,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2024-11-07 10:35:02,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 10:35:03,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 10:35:03,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2024-11-07 10:35:03,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88942d47c/636029de6ec7463a992941833cd59d70/FLAG138b1e90d [2024-11-07 10:35:03,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88942d47c/636029de6ec7463a992941833cd59d70 [2024-11-07 10:35:03,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 10:35:03,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 10:35:03,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 10:35:03,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 10:35:03,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 10:35:03,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cf0eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03, skipping insertion in model container [2024-11-07 10:35:03,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 10:35:03,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-11-07 10:35:03,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 10:35:03,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 10:35:03,762 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-11-07 10:35:03,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 10:35:03,810 INFO L204 MainTranslator]: Completed translation [2024-11-07 10:35:03,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03 WrapperNode [2024-11-07 10:35:03,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 10:35:03,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 10:35:03,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 10:35:03,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 10:35:03,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,879 INFO L138 Inliner]: procedures = 29, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-11-07 10:35:03,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 10:35:03,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 10:35:03,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 10:35:03,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 10:35:03,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,938 INFO L175 MemorySlicer]: Split 101 memory accesses to 12 slices as follows [2, 12, 8, 17, 8, 8, 3, 6, 6, 8, 17, 6]. 17 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 5, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1]. [2024-11-07 10:35:03,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 10:35:03,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 10:35:03,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 10:35:03,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 10:35:03,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (1/1) ... [2024-11-07 10:35:03,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 10:35:04,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 10:35:04,019 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 10:35:04,022 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 10:35:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 10:35:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-07 10:35:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 10:35:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-07 10:35:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 10:35:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-07 10:35:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 10:35:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-07 10:35:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-07 10:35:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-07 10:35:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 10:35:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 10:35:04,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 10:35:04,249 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 10:35:04,778 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-07 10:35:04,779 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 10:35:04,792 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 10:35:04,794 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 10:35:04,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:04 BoogieIcfgContainer [2024-11-07 10:35:04,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 10:35:04,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 10:35:04,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 10:35:04,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 10:35:04,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:35:03" (1/3) ... [2024-11-07 10:35:04,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce23d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:04, skipping insertion in model container [2024-11-07 10:35:04,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:03" (2/3) ... [2024-11-07 10:35:04,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce23d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:04, skipping insertion in model container [2024-11-07 10:35:04,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:04" (3/3) ... [2024-11-07 10:35:04,806 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-46.i [2024-11-07 10:35:04,820 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 10:35:04,820 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 10:35:04,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 10:35:04,898 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;@54c9be57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 10:35:04,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 10:35:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-07 10:35:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 10:35:04,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 10:35:04,916 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:04,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 10:35:04,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 10:35:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash 302560543, now seen corresponding path program 1 times [2024-11-07 10:35:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 10:35:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792263234] [2024-11-07 10:35:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 10:35:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 10:35:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 10:35:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 10:35:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 10:35:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 10:35:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 10:35:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 10:35:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 10:35:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 10:35:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 10:35:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 10:35:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 10:35:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 10:35:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 10:35:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 10:35:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-07 10:35:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 10:35:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792263234] [2024-11-07 10:35:05,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792263234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 10:35:05,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 10:35:05,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 10:35:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058782570] [2024-11-07 10:35:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 10:35:05,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 10:35:05,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 10:35:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 10:35:05,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 10:35:05,332 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 10:35:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 10:35:05,373 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-11-07 10:35:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 10:35:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-07 10:35:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 10:35:05,382 INFO L225 Difference]: With dead ends: 195 [2024-11-07 10:35:05,382 INFO L226 Difference]: Without dead ends: 97 [2024-11-07 10:35:05,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 10:35:05,391 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 10:35:05,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 10:35:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-07 10:35:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-07 10:35:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-07 10:35:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2024-11-07 10:35:05,436 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 116 [2024-11-07 10:35:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 10:35:05,436 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2024-11-07 10:35:05,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 10:35:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2024-11-07 10:35:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 10:35:05,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 10:35:05,444 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:05,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 10:35:05,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 10:35:05,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 10:35:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash 81671171, now seen corresponding path program 1 times [2024-11-07 10:35:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 10:35:05,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100302393] [2024-11-07 10:35:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 10:35:05,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 10:35:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 10:35:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 10:35:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 10:35:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 10:35:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 10:35:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 10:35:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 10:35:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 10:35:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 10:35:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 10:35:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 10:35:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 10:35:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 10:35:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 10:35:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-07 10:35:06,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 10:35:06,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100302393] [2024-11-07 10:35:06,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100302393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 10:35:06,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 10:35:06,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 10:35:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012794885] [2024-11-07 10:35:06,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 10:35:06,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 10:35:06,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 10:35:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 10:35:06,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-07 10:35:06,602 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 10:35:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 10:35:07,007 INFO L93 Difference]: Finished difference Result 348 states and 504 transitions. [2024-11-07 10:35:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 10:35:07,008 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-07 10:35:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 10:35:07,010 INFO L225 Difference]: With dead ends: 348 [2024-11-07 10:35:07,010 INFO L226 Difference]: Without dead ends: 254 [2024-11-07 10:35:07,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-07 10:35:07,015 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 464 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 10:35:07,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 782 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 10:35:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-07 10:35:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2024-11-07 10:35:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.412037037037037) internal successors, (305), 217 states have internal predecessors, (305), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-07 10:35:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 363 transitions. [2024-11-07 10:35:07,061 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 363 transitions. Word has length 116 [2024-11-07 10:35:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 10:35:07,061 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 363 transitions. [2024-11-07 10:35:07,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 10:35:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 363 transitions. [2024-11-07 10:35:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 10:35:07,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 10:35:07,068 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:07,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 10:35:07,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 10:35:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 10:35:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash -505134843, now seen corresponding path program 1 times [2024-11-07 10:35:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 10:35:07,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312247690] [2024-11-07 10:35:07,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 10:35:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 10:35:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 10:35:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 10:35:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 10:35:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 10:35:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 10:35:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 10:35:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 10:35:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 10:35:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 10:35:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 10:35:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 10:35:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 10:35:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 10:35:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 10:35:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-07 10:35:07,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 10:35:07,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312247690] [2024-11-07 10:35:07,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312247690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 10:35:07,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 10:35:07,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 10:35:07,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842812885] [2024-11-07 10:35:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 10:35:07,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 10:35:07,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 10:35:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 10:35:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 10:35:07,625 INFO L87 Difference]: Start difference. First operand 249 states and 363 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-07 10:35:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 10:35:07,740 INFO L93 Difference]: Finished difference Result 747 states and 1092 transitions. [2024-11-07 10:35:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 10:35:07,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-07 10:35:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 10:35:07,746 INFO L225 Difference]: With dead ends: 747 [2024-11-07 10:35:07,747 INFO L226 Difference]: Without dead ends: 501 [2024-11-07 10:35:07,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 10:35:07,751 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 129 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 10:35:07,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 575 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 10:35:07,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-07 10:35:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 285. [2024-11-07 10:35:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 252 states have (on average 1.4087301587301588) internal successors, (355), 253 states have internal predecessors, (355), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-07 10:35:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 413 transitions. [2024-11-07 10:35:07,802 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 413 transitions. Word has length 116 [2024-11-07 10:35:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 10:35:07,804 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 413 transitions. [2024-11-07 10:35:07,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-07 10:35:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 413 transitions. [2024-11-07 10:35:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-07 10:35:07,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 10:35:07,809 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:07,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 10:35:07,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 10:35:07,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 10:35:07,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1577287888, now seen corresponding path program 1 times [2024-11-07 10:35:07,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 10:35:07,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145011242] [2024-11-07 10:35:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 10:35:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 10:35:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 10:35:07,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354487442] [2024-11-07 10:35:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 10:35:07,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 10:35:07,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 10:35:07,945 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 10:35:07,947 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 10:35:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 10:35:08,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 10:35:08,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 10:35:09,441 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 77 treesize of output 45 [2024-11-07 10:35:34,865 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 64 treesize of output 48 [2024-11-07 10:35:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-07 10:35:43,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 10:35:43,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 10:35:43,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145011242] [2024-11-07 10:35:43,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 10:35:43,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354487442] [2024-11-07 10:35:43,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354487442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 10:35:43,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 10:35:43,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 10:35:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655088908] [2024-11-07 10:35:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 10:35:43,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 10:35:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 10:35:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 10:35:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=13, NotChecked=0, Total=72 [2024-11-07 10:35:43,739 INFO L87 Difference]: Start difference. First operand 285 states and 413 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-07 10:35:48,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:35:52,898 WARN L539 Checker$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 10:35:57,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:01,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:06,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:10,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:14,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:18,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:23,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:27,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:32,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:36,314 WARN L539 Checker$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 10:36:40,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 10:36:44,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]