./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1122a.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_1122a.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', '11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14'] 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_1122a.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 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:09:39,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:09:39,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 21:09:39,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:09:39,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:09:39,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:09:39,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:09:39,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:09:39,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:09:39,208 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:09:39,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:09:39,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:09:39,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:09:39,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:09:39,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:09:39,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:09:39,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:09:39,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:09:39,211 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 -> 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 [2024-11-06 21:09:39,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:09:39,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:09:39,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:09:39,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:09:39,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:09:39,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2024-11-06 21:09:40,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:09:40,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:09:40,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2024-11-06 21:09:40,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddc5449f5/9c977b32baf84e2da67581be03d8bf03/FLAG3e909b7b1 [2024-11-06 21:09:41,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddc5449f5/9c977b32baf84e2da67581be03d8bf03 [2024-11-06 21:09:41,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:09:41,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:09:41,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:09:41,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:09:41,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:09:41,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a30207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41, skipping insertion in model container [2024-11-06 21:09:41,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:09:41,225 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_1122a.c[2725,2738] [2024-11-06 21:09:41,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:09:41,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:09:41,277 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_1122a.c[2725,2738] [2024-11-06 21:09:41,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:09:41,294 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:09:41,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41 WrapperNode [2024-11-06 21:09:41,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:09:41,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:09:41,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:09:41,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:09:41,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,348 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 239 [2024-11-06 21:09:41,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:09:41,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:09:41,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:09:41,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:09:41,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,383 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 2, 5, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0]. The 4 writes are split as follows [0, 1, 1, 0, 1, 1]. [2024-11-06 21:09:41,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:09:41,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:09:41,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:09:41,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:09:41,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (1/1) ... [2024-11-06 21:09:41,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:09:41,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:09:41,456 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 21:09:41,460 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 21:09:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:09:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-06 21:09:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-06 21:09:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:09:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-06 21:09:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:09:41,620 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:09:41,622 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:09:42,019 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-11-06 21:09:42,019 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:09:42,028 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:09:42,030 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-06 21:09:42,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:42 BoogieIcfgContainer [2024-11-06 21:09:42,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:09:42,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:09:42,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:09:42,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:09:42,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:09:41" (1/3) ... [2024-11-06 21:09:42,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5296597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:09:42, skipping insertion in model container [2024-11-06 21:09:42,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:41" (2/3) ... [2024-11-06 21:09:42,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5296597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:09:42, skipping insertion in model container [2024-11-06 21:09:42,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:42" (3/3) ... [2024-11-06 21:09:42,041 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2024-11-06 21:09:42,055 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:09:42,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:09:42,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:09:42,125 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;@49f4dcb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:09:42,125 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:09:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.6216216216216217) internal successors, (120), 75 states have internal predecessors, (120), 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 21:09:42,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-06 21:09:42,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:42,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:42,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:42,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1066691095, now seen corresponding path program 1 times [2024-11-06 21:09:42,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:09:42,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767135428] [2024-11-06 21:09:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:42,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:09:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:42,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 21:09:42,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767135428] [2024-11-06 21:09:42,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767135428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:42,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:42,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:09:42,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787084822] [2024-11-06 21:09:42,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:42,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:09:42,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 21:09:42,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:09:42,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:09:42,337 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.6216216216216217) internal successors, (120), 75 states have internal predecessors, (120), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:09:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:42,356 INFO L93 Difference]: Finished difference Result 150 states and 238 transitions. [2024-11-06 21:09:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:09:42,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-06 21:09:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:42,366 INFO L225 Difference]: With dead ends: 150 [2024-11-06 21:09:42,366 INFO L226 Difference]: Without dead ends: 73 [2024-11-06 21:09:42,371 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 21:09:42,375 INFO L432 NwaCegarLoop]: 105 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, 105 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 21:09:42,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:09:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-06 21:09:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-06 21:09:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 72 states have internal predecessors, (102), 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 21:09:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-11-06 21:09:42,414 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 12 [2024-11-06 21:09:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:42,415 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-11-06 21:09:42,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:09:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-11-06 21:09:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-06 21:09:42,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:42,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:42,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 21:09:42,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:42,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1905969300, now seen corresponding path program 1 times [2024-11-06 21:09:42,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 21:09:42,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683614308] [2024-11-06 21:09:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:42,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 21:09:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:09:42,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 21:09:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 21:09:42,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 21:09:42,576 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 21:09:42,577 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 21:09:42,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 21:09:42,582 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-06 21:09:42,600 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 21:09:42,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:09:42 BoogieIcfgContainer [2024-11-06 21:09:42,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 21:09:42,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 21:09:42,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 21:09:42,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 21:09:42,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:42" (3/4) ... [2024-11-06 21:09:42,608 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-06 21:09:42,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 21:09:42,610 INFO L158 Benchmark]: Toolchain (without parser) took 1593.00ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 67.0MB in the end (delta: 24.2MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-11-06 21:09:42,611 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:42,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.61ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:09:42,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.91ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:09:42,613 INFO L158 Benchmark]: Boogie Preprocessor took 71.89ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:42,613 INFO L158 Benchmark]: RCFGBuilder took 609.08ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 51.1MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 21:09:42,613 INFO L158 Benchmark]: TraceAbstraction took 572.35ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 67.0MB in the end (delta: -16.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:42,613 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:42,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.61ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.91ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.89ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.08ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 51.1MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 572.35ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 67.0MB in the end (delta: -16.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. 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: 125]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, one_fmod=1] [L119] float x = 1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L121] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, one_fmod=1, x=2147483662, y=2147483663] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=-2147483648, one_fmod=1, sx=0, x=2147483662, y=2147483663] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, one_fmod=1, sx=0, x=2147483662, y=2147483663] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, one_fmod=1, sx=0, x=2147483662, y=2147483663] [L121] RET, EXPR fmod_float(x, y) [L121] float res = fmod_float(x, y); [L124] CALL, EXPR isnan_float(res) [L110] return x != x; VAL [Zero_fmod={4:0}, \result=0, one_fmod=1] [L124] RET, EXPR isnan_float(res) [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 105 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, 105 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=76occurred 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, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 21:09:42,635 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_1122a.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 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 21:09:44,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 21:09:44,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 21:09:44,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 21:09:44,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 21:09:44,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 21:09:44,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 21:09:44,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 21:09:44,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 21:09:44,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 21:09:44,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 21:09:44,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 21:09:44,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 21:09:44,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 21:09:44,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 21:09:44,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 21:09:44,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 21:09:44,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 21:09:44,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 21:09:44,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 21:09:44,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:09:44,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 21:09:44,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 21:09:44,932 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 -> 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 [2024-11-06 21:09:45,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 21:09:45,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 21:09:45,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 21:09:45,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 21:09:45,245 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 21:09:45,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2024-11-06 21:09:46,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 21:09:46,769 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 21:09:46,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2024-11-06 21:09:46,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c907cb3f5/d7caab030907470c9f623d80ec5e66f0/FLAG0735f4459 [2024-11-06 21:09:47,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c907cb3f5/d7caab030907470c9f623d80ec5e66f0 [2024-11-06 21:09:47,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 21:09:47,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 21:09:47,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 21:09:47,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 21:09:47,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 21:09:47,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a39831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47, skipping insertion in model container [2024-11-06 21:09:47,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 21:09:47,290 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_1122a.c[2725,2738] [2024-11-06 21:09:47,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:09:47,307 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 21:09:47,335 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_1122a.c[2725,2738] [2024-11-06 21:09:47,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 21:09:47,354 INFO L204 MainTranslator]: Completed translation [2024-11-06 21:09:47,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47 WrapperNode [2024-11-06 21:09:47,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 21:09:47,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 21:09:47,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 21:09:47,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 21:09:47,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,414 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2024-11-06 21:09:47,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 21:09:47,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 21:09:47,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 21:09:47,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 21:09:47,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,462 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 2, 5, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0]. The 4 writes are split as follows [0, 1, 1, 0, 1, 1]. [2024-11-06 21:09:47,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 21:09:47,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 21:09:47,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 21:09:47,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 21:09:47,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (1/1) ... [2024-11-06 21:09:47,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 21:09:47,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 21:09:47,537 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 21:09:47,539 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 21:09:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-06 21:09:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 21:09:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 21:09:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-06 21:09:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 21:09:47,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 21:09:47,680 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 21:09:49,599 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-06 21:09:49,599 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 21:09:49,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 21:09:49,607 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-06 21:09:49,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:49 BoogieIcfgContainer [2024-11-06 21:09:49,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 21:09:49,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 21:09:49,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 21:09:49,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 21:09:49,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:09:47" (1/3) ... [2024-11-06 21:09:49,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7967de40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:09:49, skipping insertion in model container [2024-11-06 21:09:49,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:09:47" (2/3) ... [2024-11-06 21:09:49,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7967de40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:09:49, skipping insertion in model container [2024-11-06 21:09:49,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:49" (3/3) ... [2024-11-06 21:09:49,616 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2024-11-06 21:09:49,627 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 21:09:49,628 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 21:09:49,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 21:09:49,672 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;@121732bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 21:09:49,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 21:09:49,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 21:09:49,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-06 21:09:49,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:49,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:49,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2024-11-06 21:09:49,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:09:49,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182928580] [2024-11-06 21:09:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:49,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:49,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:09:49,697 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 21:09:49,698 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 21:09:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:49,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 21:09:49,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:09:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:50,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:09:50,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:09:50,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182928580] [2024-11-06 21:09:50,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182928580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:50,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:50,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 21:09:50,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204725248] [2024-11-06 21:09:50,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:50,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 21:09:50,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:09:50,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 21:09:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 21:09:50,041 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:50,055 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2024-11-06 21:09:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 21:09:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-06 21:09:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:50,065 INFO L225 Difference]: With dead ends: 82 [2024-11-06 21:09:50,065 INFO L226 Difference]: Without dead ends: 39 [2024-11-06 21:09:50,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 21:09:50,072 INFO L432 NwaCegarLoop]: 57 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, 57 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 21:09:50,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:09:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-06 21:09:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-06 21:09:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2024-11-06 21:09:50,102 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2024-11-06 21:09:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:50,102 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2024-11-06 21:09:50,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 21:09:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2024-11-06 21:09:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-06 21:09:50,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:50,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:50,114 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 21:09:50,309 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 21:09:50,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:50,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2024-11-06 21:09:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:09:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435548523] [2024-11-06 21:09:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:50,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:50,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:09:50,315 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 21:09:50,317 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 21:09:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:50,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-06 21:09:50,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:09:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:52,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:09:52,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:09:52,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435548523] [2024-11-06 21:09:52,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435548523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:52,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:52,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 21:09:52,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344531823] [2024-11-06 21:09:52,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:52,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 21:09:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:09:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 21:09:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 21:09:52,641 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 21:09:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:55,242 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2024-11-06 21:09:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 21:09:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-06 21:09:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:55,243 INFO L225 Difference]: With dead ends: 45 [2024-11-06 21:09:55,243 INFO L226 Difference]: Without dead ends: 40 [2024-11-06 21:09:55,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-06 21:09:55,244 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 84 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-06 21:09:55,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 189 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-06 21:09:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-06 21:09:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2024-11-06 21:09:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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 21:09:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-06 21:09:55,250 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2024-11-06 21:09:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:55,250 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-06 21:09:55,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 21:09:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-06 21:09:55,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 21:09:55,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 21:09:55,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 21:09:55,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-06 21:09:55,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:55,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 21:09:55,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 21:09:55,452 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2024-11-06 21:09:55,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 21:09:55,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003028434] [2024-11-06 21:09:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 21:09:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 21:09:55,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 21:09:55,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-06 21:09:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 21:09:55,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-06 21:09:55,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 21:09:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 21:09:55,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 21:09:55,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 21:09:55,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003028434] [2024-11-06 21:09:55,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003028434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 21:09:55,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 21:09:55,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 21:09:55,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713227917] [2024-11-06 21:09:55,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 21:09:55,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 21:09:55,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 21:09:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 21:09:55,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 21:09:55,784 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 21:09:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 21:09:55,868 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2024-11-06 21:09:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 21:09:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2024-11-06 21:09:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 21:09:55,870 INFO L225 Difference]: With dead ends: 39 [2024-11-06 21:09:55,870 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 21:09:55,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 21:09:55,871 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 21:09:55,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 21:09:55,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 21:09:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 21:09:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 21:09:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 21:09:55,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-06 21:09:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 21:09:55,872 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 21:09:55,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 21:09:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 21:09:55,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 21:09:55,876 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 21:09:55,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-06 21:09:56,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 21:09:56,080 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-06 21:09:56,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 21:09:56,295 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 21:09:56,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:09:56 BoogieIcfgContainer [2024-11-06 21:09:56,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 21:09:56,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 21:09:56,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 21:09:56,307 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 21:09:56,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:09:49" (3/4) ... [2024-11-06 21:09:56,310 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 21:09:56,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-06 21:09:56,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-06 21:09:56,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-06 21:09:56,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 21:09:56,378 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 21:09:56,378 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 21:09:56,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 21:09:56,380 INFO L158 Benchmark]: Toolchain (without parser) took 9290.55ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 52.2MB in the end (delta: 43.0MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2024-11-06 21:09:56,381 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:56,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.25ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 81.8MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:09:56,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.63ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:09:56,381 INFO L158 Benchmark]: Boogie Preprocessor took 90.30ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:56,382 INFO L158 Benchmark]: RCFGBuilder took 2101.35ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 58.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 21:09:56,382 INFO L158 Benchmark]: TraceAbstraction took 6697.29ms. Allocated memory is still 117.4MB. Free memory was 57.7MB in the beginning and 56.6MB in the end (delta: 1.1MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-06 21:09:56,382 INFO L158 Benchmark]: Witness Printer took 71.27ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 52.2MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:09:56,383 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.25ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 81.8MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.63ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.30ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2101.35ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 58.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6697.29ms. Allocated memory is still 117.4MB. Free memory was 57.7MB in the beginning and 56.6MB in the end (delta: 1.1MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 71.27ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 52.2MB in the end (delta: 4.4MB). 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 - PositiveResult [Line: 125]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 253 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 110 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 7 QuantifiedInterpolants, 204 SizeOfPredicates, 6 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-06 21:09:56,450 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 Writing output log to file Ultimate.log Result: TRUE