./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0960a.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_0960a.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', '391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314'] 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_0960a.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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:08:18,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:08:18,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 21:08:18,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:08:18,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:08:18,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:08:18,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:08:18,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:08:18,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:08:18,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:08:18,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:08:18,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:08:18,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:08:18,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:08:18,997 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:08:18,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:08:18,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:08:18,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:08:18,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:08:19,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:08:19,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:19,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:08:19,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:08:19,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:08:19,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 21:08:19,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 21:08:19,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:08:19,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:08:19,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:08:19,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:08:19,002 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 -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2024-11-06 21:08:19,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:08:19,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:08:19,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:08:19,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:08:19,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:08:19,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-06 21:08:20,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:08:20,793 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:08:20,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-06 21:08:20,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4916d71dc/1fa808b7b27d489d8264e7bacaaf9b62/FLAGf54d325fc [2024-11-06 21:08:20,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4916d71dc/1fa808b7b27d489d8264e7bacaaf9b62 [2024-11-06 21:08:20,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:08:20,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:08:20,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:20,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:08:20,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:08:20,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:20" (1/1) ... [2024-11-06 21:08:20,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2844db7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:20, skipping insertion in model container [2024-11-06 21:08:20,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:20" (1/1) ... [2024-11-06 21:08:20,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:08:21,049 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_0960a.c[4225,4238] [2024-11-06 21:08:21,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:21,064 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:08:21,114 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_0960a.c[4225,4238] [2024-11-06 21:08:21,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:21,132 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:08:21,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21 WrapperNode [2024-11-06 21:08:21,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:21,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:21,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:08:21,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:08:21,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,183 INFO L138 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 267 [2024-11-06 21:08:21,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:21,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:08:21,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:08:21,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:08:21,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,213 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-11-06 21:08:21,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:08:21,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:08:21,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:08:21,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:08:21,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (1/1) ... [2024-11-06 21:08:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:21,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:08:21,271 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 21:08:21,274 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 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-06 21:08:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-06 21:08:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:08:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-06 21:08:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:08:21,399 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:08:21,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:08:21,729 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-06 21:08:21,729 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:08:21,742 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:08:21,742 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-06 21:08:21,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:21 BoogieIcfgContainer [2024-11-06 21:08:21,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:08:21,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:08:21,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:08:21,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:08:21,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:08:20" (1/3) ... [2024-11-06 21:08:21,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b93754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:21, skipping insertion in model container [2024-11-06 21:08:21,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:21" (2/3) ... [2024-11-06 21:08:21,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b93754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:21, skipping insertion in model container [2024-11-06 21:08:21,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:21" (3/3) ... [2024-11-06 21:08:21,753 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2024-11-06 21:08:21,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:08:21,766 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:08:21,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:08:21,831 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;@31de29c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:08:21,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:08:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 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 21:08:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-06 21:08:21,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:21,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:21,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:21,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:21,846 INFO L85 PathProgramCache]: Analyzing trace with hash -598678917, now seen corresponding path program 1 times [2024-11-06 21:08:21,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:08:21,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080790964] [2024-11-06 21:08:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:08:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:21,991 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 21:08:21,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 21:08:21,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080790964] [2024-11-06 21:08:21,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080790964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:21,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:21,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:08:21,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986940679] [2024-11-06 21:08:21,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:21,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:08:22,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 21:08:22,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:08:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:22,024 INFO L87 Difference]: Start difference. First operand has 67 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:08:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:08:22,048 INFO L93 Difference]: Finished difference Result 132 states and 212 transitions. [2024-11-06 21:08:22,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:08:22,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-11-06 21:08:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:08:22,057 INFO L225 Difference]: With dead ends: 132 [2024-11-06 21:08:22,057 INFO L226 Difference]: Without dead ends: 64 [2024-11-06 21:08:22,059 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 21:08:22,064 INFO L432 NwaCegarLoop]: 91 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, 91 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 21:08:22,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:08:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-06 21:08:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-06 21:08:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 63 states have internal predecessors, (88), 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 21:08:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2024-11-06 21:08:22,090 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 11 [2024-11-06 21:08:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:08:22,091 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2024-11-06 21:08:22,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:08:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2024-11-06 21:08:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 21:08:22,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:22,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:22,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 21:08:22,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:22,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash 453418339, now seen corresponding path program 1 times [2024-11-06 21:08:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:08:22,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472896926] [2024-11-06 21:08:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:22,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:08:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:08:22,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 21:08:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:08:22,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 21:08:22,207 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 21:08:22,208 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 21:08:22,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 21:08:22,218 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-06 21:08:22,246 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 21:08:22,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:08:22 BoogieIcfgContainer [2024-11-06 21:08:22,249 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 21:08:22,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 21:08:22,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 21:08:22,250 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 21:08:22,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:21" (3/4) ... [2024-11-06 21:08:22,253 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-06 21:08:22,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 21:08:22,254 INFO L158 Benchmark]: Toolchain (without parser) took 1430.60ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 45.1MB in the end (delta: 32.4MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-06 21:08:22,254 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:22,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.43ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 63.8MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 21:08:22,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 61.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:22,255 INFO L158 Benchmark]: Boogie Preprocessor took 50.87ms. Allocated memory is still 100.7MB. Free memory was 61.5MB in the beginning and 58.3MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:22,255 INFO L158 Benchmark]: RCFGBuilder took 507.47ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 73.7MB in the end (delta: -15.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-06 21:08:22,255 INFO L158 Benchmark]: TraceAbstraction took 504.46ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 45.6MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 21:08:22,256 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 100.7MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:08:22,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.43ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 63.8MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 61.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.87ms. Allocated memory is still 100.7MB. Free memory was 61.5MB in the beginning and 58.3MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 507.47ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 73.7MB in the end (delta: -15.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 504.46ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 45.6MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 100.7MB. Free memory is still 45.1MB. 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: 169]: 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 someBinaryArithmeticFLOAToperation at line 119. 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; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 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, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] [L164] float x = 0.0f; [L165] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; 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, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] 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, hx=0, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; 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, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L165] RET, EXPR __ieee754_log10f(x) [L165] float res = __ieee754_log10f(x); [L168] CALL, EXPR isinf_float(res) [L148] __int32_t ix; 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, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=33554445, zero=0, zero_log=0] [L150] ieee_float_shape_type gf_u; [L151] gf_u.value = (x) [L152] EXPR gf_u.word [L152] (ix) = gf_u.word [L154] ix &= 0x7fffffff [L155] return ((ix) == 0x7f800000L); 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, \result=0, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=33554445, zero=0, zero_log=0] [L168] RET, EXPR isinf_float(res) [L168] COND TRUE !isinf_float(res) [L169] 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, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 91 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, 91 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=67occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 21:08:22,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_0960a.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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:08:24,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:08:24,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 21:08:24,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:08:24,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:08:24,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:08:24,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:08:24,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:08:24,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:08:24,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:08:24,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:08:24,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:08:24,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:08:24,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:08:24,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:08:24,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:08:24,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:08:24,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:08:24,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:08:24,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:08:24,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:08:24,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:08:24,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:08:24,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 21:08:24,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 21:08:24,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:08:24,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:24,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:08:24,559 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 21:08:24,560 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 21:08:24,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:08:24,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:08:24,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:08:24,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:08:24,560 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 -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2024-11-06 21:08:24,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:08:24,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:08:24,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:08:24,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:08:24,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:08:24,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-06 21:08:26,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:08:26,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:08:26,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-06 21:08:26,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b092cc0a/b691e7bf790c46b8ad6500b59b84ece7/FLAGbe9f1ba3d [2024-11-06 21:08:26,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b092cc0a/b691e7bf790c46b8ad6500b59b84ece7 [2024-11-06 21:08:26,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:08:26,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:08:26,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:26,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:08:26,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:08:26,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133bc518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26, skipping insertion in model container [2024-11-06 21:08:26,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:08:26,657 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_0960a.c[4225,4238] [2024-11-06 21:08:26,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:26,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:08:26,711 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_0960a.c[4225,4238] [2024-11-06 21:08:26,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:08:26,727 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:08:26,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26 WrapperNode [2024-11-06 21:08:26,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:08:26,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:26,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:08:26,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:08:26,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,770 INFO L138 Inliner]: procedures = 21, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 225 [2024-11-06 21:08:26,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:08:26,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:08:26,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:08:26,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:08:26,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,797 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-11-06 21:08:26,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:08:26,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:08:26,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:08:26,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:08:26,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (1/1) ... [2024-11-06 21:08:26,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:08:26,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:08:26,865 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 21:08:26,870 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 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 21:08:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-06 21:08:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:08:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-06 21:08:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-06 21:08:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:08:27,000 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:08:27,002 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:08:53,546 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-06 21:08:53,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:08:53,554 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:08:53,556 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-06 21:08:53,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:53 BoogieIcfgContainer [2024-11-06 21:08:53,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:08:53,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:08:53,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:08:53,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:08:53,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:08:26" (1/3) ... [2024-11-06 21:08:53,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af17689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:53, skipping insertion in model container [2024-11-06 21:08:53,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26" (2/3) ... [2024-11-06 21:08:53,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af17689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:53, skipping insertion in model container [2024-11-06 21:08:53,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:53" (3/3) ... [2024-11-06 21:08:53,567 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2024-11-06 21:08:53,579 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:08:53,580 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:08:53,625 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:08:53,634 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;@1279d811, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:08:53,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:08:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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 21:08:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-06 21:08:53,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:53,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:53,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:53,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2024-11-06 21:08:53,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:08:53,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806454177] [2024-11-06 21:08:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:53,658 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 21:08:53,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:08:53,661 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 21:08:53,662 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 21:08:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:54,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 21:08:54,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:08:54,181 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 21:08:54,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:08:54,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:08:54,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806454177] [2024-11-06 21:08:54,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806454177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:54,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:54,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:08:54,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401017338] [2024-11-06 21:08:54,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:54,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:08:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:08:54,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:08:54,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:08:54,201 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:08:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:08:54,216 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2024-11-06 21:08:54,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:08:54,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-11-06 21:08:54,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:08:54,223 INFO L225 Difference]: With dead ends: 92 [2024-11-06 21:08:54,223 INFO L226 Difference]: Without dead ends: 44 [2024-11-06 21:08:54,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 21:08:54,228 INFO L432 NwaCegarLoop]: 61 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, 61 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 21:08:54,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:08:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-06 21:08:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-06 21:08:54,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 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 21:08:54,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2024-11-06 21:08:54,260 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2024-11-06 21:08:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:08:54,261 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2024-11-06 21:08:54,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:08:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2024-11-06 21:08:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 21:08:54,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:08:54,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:08:54,279 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 21:08:54,463 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 21:08:54,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:08:54,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:08:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2024-11-06 21:08:54,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:08:54,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284564716] [2024-11-06 21:08:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:08:54,465 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 21:08:54,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:08:54,468 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 21:08:54,469 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 21:08:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:08:55,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-06 21:08:55,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:08:56,480 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 21:08:56,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:08:56,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:08:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284564716] [2024-11-06 21:08:56,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284564716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:08:56,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:08:56,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 21:08:56,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798854210] [2024-11-06 21:08:56,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:08:56,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 21:08:56,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:08:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 21:08:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-06 21:08:56,483 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 21:09:05,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:09:09,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:09:13,105 WARN L539 Checker$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 [] [2024-11-06 21:09:17,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:21,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:25,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:30,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:09:34,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:09:38,188 WARN L539 Checker$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 [] [2024-11-06 21:09:42,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:46,200 WARN L539 Checker$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 21:09:50,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 21:09:52,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:09:57,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 21:10:02,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []