./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0930.c --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/float-newlib/float_req_bl_0930.c', '-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', 'd0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050'] 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/float-newlib/float_req_bl_0930.c -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 d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:08:05,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:08:05,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 21:08:05,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:08:05,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:08:05,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:08:05,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:08:05,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:08:05,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:08:05,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:08:05,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:08:05,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:08:05,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:08:05,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:08:05,521 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:08:05,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:08:05,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:08:05,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:08:05,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:08:05,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:08:05,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:05,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:08:05,525 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 21:08:05,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 21:08:05,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:08:05,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:08:05,526 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:08:05,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:08:05,526 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 -> d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 [2024-11-06 21:08:05,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:08:05,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:08:05,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:08:05,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:08:05,785 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:08:05,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-06 21:08:06,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:08:07,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:08:07,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-06 21:08:07,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2dabbcdcd/a7db8c65d4b74e68bec29a5879f5dd48/FLAG10ccf0916 [2024-11-06 21:08:07,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2dabbcdcd/a7db8c65d4b74e68bec29a5879f5dd48 [2024-11-06 21:08:07,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:08:07,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:08:07,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:07,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:08:07,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:08:07,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494e35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07, skipping insertion in model container [2024-11-06 21:08:07,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:08:07,384 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/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-06 21:08:07,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:07,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:08:07,425 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/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-06 21:08:07,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:07,440 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:08:07,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07 WrapperNode [2024-11-06 21:08:07,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:07,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:07,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:08:07,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:08:07,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,484 INFO L138 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 194 [2024-11-06 21:08:07,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:07,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:08:07,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:08:07,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:08:07,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,513 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-06 21:08:07,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:08:07,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:08:07,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:08:07,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:08:07,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (1/1) ... [2024-11-06 21:08:07,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:07,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:08:07,580 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) [2024-11-06 21:08:07,586 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 [2024-11-06 21:08:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:08:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-06 21:08:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-06 21:08:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:08:07,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:08:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 21:08:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 21:08:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-06 21:08:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-06 21:08:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-06 21:08:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:08:07,705 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:08:07,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:08:07,932 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-06 21:08:07,932 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:08:07,943 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:08:07,944 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-06 21:08:07,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:07 BoogieIcfgContainer [2024-11-06 21:08:07,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:08:07,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:08:07,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:08:07,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:08:07,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:08:07" (1/3) ... [2024-11-06 21:08:07,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2965ed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:07, skipping insertion in model container [2024-11-06 21:08:07,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:07" (2/3) ... [2024-11-06 21:08:07,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2965ed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:07, skipping insertion in model container [2024-11-06 21:08:07,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:07" (3/3) ... [2024-11-06 21:08:07,953 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930.c [2024-11-06 21:08:07,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:08:07,967 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:08:08,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:08:08,023 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;@58641a69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:08:08,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:08:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 49 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:08,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-06 21:08:08,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:08,037 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:08,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1902362014, now seen corresponding path program 1 times [2024-11-06 21:08:08,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:08:08,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585637428] [2024-11-06 21:08:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:08:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:08:08,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 21:08:08,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585637428] [2024-11-06 21:08:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585637428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:08,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:08,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:08:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465053257] [2024-11-06 21:08:08,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:08,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:08:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 21:08:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:08:08,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:08,182 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 49 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:08:08,194 INFO L93 Difference]: Finished difference Result 98 states and 156 transitions. [2024-11-06 21:08:08,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:08:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-06 21:08:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:08:08,200 INFO L225 Difference]: With dead ends: 98 [2024-11-06 21:08:08,200 INFO L226 Difference]: Without dead ends: 47 [2024-11-06 21:08:08,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:08,204 INFO L432 NwaCegarLoop]: 69 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, 69 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 [2024-11-06 21:08:08,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:08:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-06 21:08:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-06 21:08:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.434782608695652) internal successors, (66), 46 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-11-06 21:08:08,233 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 9 [2024-11-06 21:08:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:08:08,233 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-11-06 21:08:08,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-11-06 21:08:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-06 21:08:08,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:08,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:08,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 21:08:08,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:08,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1485988799, now seen corresponding path program 1 times [2024-11-06 21:08:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:08:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512695569] [2024-11-06 21:08:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:08:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:08:08,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 21:08:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:08:08,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 21:08:08,318 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 21:08:08,322 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 21:08:08,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 21:08:08,326 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-06 21:08:08,343 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 21:08:08,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:08:08 BoogieIcfgContainer [2024-11-06 21:08:08,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 21:08:08,346 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 21:08:08,346 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 21:08:08,346 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 21:08:08,346 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:07" (3/4) ... [2024-11-06 21:08:08,348 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-06 21:08:08,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 21:08:08,349 INFO L158 Benchmark]: Toolchain (without parser) took 1141.09ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.4MB in the end (delta: 14.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-06 21:08:08,349 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:08,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.41ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 79.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:08:08,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.46ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:08:08,350 INFO L158 Benchmark]: Boogie Preprocessor took 57.91ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 74.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:08,350 INFO L158 Benchmark]: RCFGBuilder took 400.81ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 57.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 21:08:08,350 INFO L158 Benchmark]: TraceAbstraction took 398.78ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 77.5MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:08,351 INFO L158 Benchmark]: Witness Printer took 2.83ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 77.4MB in the end (delta: 34.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:08,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.41ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 79.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.46ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.91ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 74.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.81ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 57.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 398.78ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 77.5MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.83ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 77.4MB in the end (delta: 34.6kB). There was no memory consumed. 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 - UnprovableResult [Line: 123]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 122, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L118] float x = 1.0f; [L119] CALL, EXPR __ieee754_logf(x) [L23] float hfsq, f, s, z, R, w, t1, t2, dk; [L24] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L27] ieee_float_shape_type gf_u; [L28] gf_u.value = (x) [L29] EXPR gf_u.word [L29] (ix) = gf_u.word [L32] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L33] COND TRUE ((ix & 0x7fffffff) == 0) [L34] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L119] RET, EXPR __ieee754_logf(x) [L119] float res = __ieee754_logf(x); [L122] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=2147483657, two25_log=33554432, zero_log=0] [L122] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L123] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=2147483657, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 69 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2024-11-06 21:08:08,373 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/float-newlib/float_req_bl_0930.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:08:10,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:08:10,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 21:08:10,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:08:10,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:08:10,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:08:10,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:08:10,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:08:10,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:08:10,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:08:10,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:08:10,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:08:10,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:08:10,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:08:10,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:08:10,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:08:10,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:08:10,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:08:10,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:10,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:08:10,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:08:10,305 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 -> d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 [2024-11-06 21:08:10,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:08:10,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:08:10,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:08:10,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:08:10,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:08:10,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-06 21:08:11,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:08:12,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:08:12,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-06 21:08:12,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64f1db9ff/d0cec11a0b2d4ced9b138209b145f155/FLAG25c4de719 [2024-11-06 21:08:12,062 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64f1db9ff/d0cec11a0b2d4ced9b138209b145f155 [2024-11-06 21:08:12,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:08:12,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:08:12,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:12,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:08:12,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:08:12,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3918ecb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12, skipping insertion in model container [2024-11-06 21:08:12,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:08:12,252 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/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-06 21:08:12,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:12,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:08:12,310 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/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-06 21:08:12,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:12,326 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:08:12,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12 WrapperNode [2024-11-06 21:08:12,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:12,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:12,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:08:12,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:08:12,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,375 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2024-11-06 21:08:12,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:12,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:08:12,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:08:12,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:08:12,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,407 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-06 21:08:12,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:08:12,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:08:12,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:08:12,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:08:12,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (1/1) ... [2024-11-06 21:08:12,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:12,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:08:12,480 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) [2024-11-06 21:08:12,483 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 [2024-11-06 21:08:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:08:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 21:08:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:08:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 21:08:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 21:08:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 21:08:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-06 21:08:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:08:12,609 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:08:12,611 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:08:42,969 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-06 21:08:42,970 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:08:42,976 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:08:42,976 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-06 21:08:42,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:42 BoogieIcfgContainer [2024-11-06 21:08:42,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:08:42,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:08:42,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:08:42,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:08:42,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:08:12" (1/3) ... [2024-11-06 21:08:42,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba80b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:42, skipping insertion in model container [2024-11-06 21:08:42,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:12" (2/3) ... [2024-11-06 21:08:42,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba80b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:42, skipping insertion in model container [2024-11-06 21:08:42,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:42" (3/3) ... [2024-11-06 21:08:42,984 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930.c [2024-11-06 21:08:42,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:08:42,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:08:43,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:08:43,051 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;@49eba8f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:08:43,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:08:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-06 21:08:43,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:43,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:43,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1904085918, now seen corresponding path program 1 times [2024-11-06 21:08:43,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:08:43,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847365512] [2024-11-06 21:08:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:43,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:08:43,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:08:43,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:08:43,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-06 21:08:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:43,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 21:08:43,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:08:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:08:43,477 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:08:43,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:08:43,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847365512] [2024-11-06 21:08:43,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847365512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:43,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:43,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:08:43,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088459030] [2024-11-06 21:08:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:43,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:08:43,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:08:43,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:08:43,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:43,495 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:08:43,504 INFO L93 Difference]: Finished difference Result 66 states and 106 transitions. [2024-11-06 21:08:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:08:43,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-06 21:08:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:08:43,511 INFO L225 Difference]: With dead ends: 66 [2024-11-06 21:08:43,511 INFO L226 Difference]: Without dead ends: 31 [2024-11-06 21:08:43,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:43,514 INFO L432 NwaCegarLoop]: 45 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, 45 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 [2024-11-06 21:08:43,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:08:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-06 21:08:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-06 21:08:43,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2024-11-06 21:08:43,533 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 9 [2024-11-06 21:08:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:08:43,533 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-11-06 21:08:43,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-06 21:08:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-06 21:08:43,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:43,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:43,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-06 21:08:43,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:08:43,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:43,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:43,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1484264895, now seen corresponding path program 1 times [2024-11-06 21:08:43,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:08:43,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669277998] [2024-11-06 21:08:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:43,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:08:43,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:08:43,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:08:43,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-06 21:08:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:44,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 21:08:44,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:08:44,256 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 [2024-11-06 21:08:44,280 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 31 treesize of output 15 [2024-11-06 21:08:44,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:08:44,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:08:44,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:08:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669277998] [2024-11-06 21:08:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669277998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:44,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:44,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 21:08:44,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573753689] [2024-11-06 21:08:44,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:44,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 21:08:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:08:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 21:08:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 21:08:44,459 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:49,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:08:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:08:49,298 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2024-11-06 21:08:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 21:08:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-06 21:08:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:08:49,299 INFO L225 Difference]: With dead ends: 51 [2024-11-06 21:08:49,299 INFO L226 Difference]: Without dead ends: 29 [2024-11-06 21:08:49,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 21:08:49,300 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-06 21:08:49,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 77 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-06 21:08:49,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-06 21:08:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-06 21:08:49,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-06 21:08:49,303 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 10 [2024-11-06 21:08:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:08:49,303 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-06 21:08:49,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-06 21:08:49,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-06 21:08:49,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:49,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:49,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-06 21:08:49,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:08:49,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:49,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash 933425138, now seen corresponding path program 1 times [2024-11-06 21:08:49,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:08:49,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373967385] [2024-11-06 21:08:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:49,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:08:49,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:08:49,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:08:49,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-06 21:08:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:49,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 21:08:49,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:08:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:08:50,508 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:08:50,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:08:50,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373967385] [2024-11-06 21:08:50,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373967385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:50,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:50,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 21:08:50,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066216160] [2024-11-06 21:08:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:50,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 21:08:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:08:50,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 21:08:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 21:08:50,509 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:08:52,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:08:56,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:00,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:03,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:07,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:11,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:14,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:14,847 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2024-11-06 21:09:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 21:09:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-06 21:09:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:14,849 INFO L225 Difference]: With dead ends: 34 [2024-11-06 21:09:14,849 INFO L226 Difference]: Without dead ends: 31 [2024-11-06 21:09:14,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 21:09:14,850 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-11-06 21:09:14,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 81 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2024-11-06 21:09:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-06 21:09:14,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-06 21:09:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-06 21:09:14,852 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 20 [2024-11-06 21:09:14,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:14,853 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-06 21:09:14,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-06 21:09:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-06 21:09:14,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:14,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:14,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-06 21:09:15,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:15,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:15,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash 935272180, now seen corresponding path program 1 times [2024-11-06 21:09:15,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:09:15,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055204618] [2024-11-06 21:09:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:15,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:15,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:09:15,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:09:15,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-06 21:09:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:15,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-06 21:09:15,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:09:15,538 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 [2024-11-06 21:09:15,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-06 21:09:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:16,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:09:16,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:09:16,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055204618] [2024-11-06 21:09:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055204618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:16,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:16,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 21:09:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19502514] [2024-11-06 21:09:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:16,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 21:09:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:09:16,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 21:09:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 21:09:16,806 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:21,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:25,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:29,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:33,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:37,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:41,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:44,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:44,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:44,648 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-06 21:09:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 21:09:44,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-06 21:09:44,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:44,649 INFO L225 Difference]: With dead ends: 40 [2024-11-06 21:09:44,649 INFO L226 Difference]: Without dead ends: 31 [2024-11-06 21:09:44,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-06 21:09:44,650 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2024-11-06 21:09:44,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 76 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 5 Unknown, 0 Unchecked, 27.4s Time] [2024-11-06 21:09:44,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-06 21:09:44,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-06 21:09:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2024-11-06 21:09:44,652 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2024-11-06 21:09:44,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:44,653 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2024-11-06 21:09:44,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:44,653 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2024-11-06 21:09:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-06 21:09:44,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:44,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:44,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-06 21:09:44,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:44,854 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:44,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1140293842, now seen corresponding path program 1 times [2024-11-06 21:09:44,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:09:44,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577799996] [2024-11-06 21:09:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:44,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:44,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:09:44,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:09:44,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-06 21:09:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:45,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-06 21:09:45,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:09:45,695 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 [2024-11-06 21:09:45,725 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 31 treesize of output 15 [2024-11-06 21:09:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:47,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:09:47,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:09:47,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577799996] [2024-11-06 21:09:47,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577799996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:47,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:47,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 21:09:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161277061] [2024-11-06 21:09:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:47,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 21:09:47,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:09:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 21:09:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 21:09:47,204 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:52,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []