./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0920b.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/double_req_bl_0920b.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', '0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8'] 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/double_req_bl_0920b.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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:58:51,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:58:51,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:58:51,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:58:51,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:58:51,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:58:51,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:58:51,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:58:51,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:58:51,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:58:51,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:58:51,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:58:51,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:58:51,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:58:51,923 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:58:51,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:58:51,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:58:51,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:58:51,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:58:51,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:58:51,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:58:51,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:58:51,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:58:51,926 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 -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2024-11-06 20:58:52,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:58:52,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:58:52,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:58:52,131 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:58:52,132 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:58:52,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-11-06 20:58:53,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:58:53,508 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:58:53,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-11-06 20:58:53,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/261915e9a/568d732bf8f2453782ffd21ae2863d21/FLAG7bfdf6de0 [2024-11-06 20:58:53,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/261915e9a/568d732bf8f2453782ffd21ae2863d21 [2024-11-06 20:58:53,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:58:53,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:58:53,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:58:53,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:58:53,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:58:53,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:53" (1/1) ... [2024-11-06 20:58:53,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db58868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:53, skipping insertion in model container [2024-11-06 20:58:53,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:53" (1/1) ... [2024-11-06 20:58:53,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:58:54,028 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/double_req_bl_0920b.c[3940,3953] [2024-11-06 20:58:54,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:58:54,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:58:54,061 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/double_req_bl_0920b.c[3940,3953] [2024-11-06 20:58:54,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:58:54,075 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:58:54,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54 WrapperNode [2024-11-06 20:58:54,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:58:54,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:58:54,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:58:54,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:58:54,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,121 INFO L138 Inliner]: procedures = 19, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 190 [2024-11-06 20:58:54,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:58:54,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:58:54,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:58:54,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:58:54,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,136 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,158 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-11-06 20:58:54,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:58:54,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:58:54,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:58:54,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:58:54,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (1/1) ... [2024-11-06 20:58:54,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:58:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:58:54,221 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 20:58:54,229 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 20:58:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-06 20:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:58:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 20:58:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 20:58:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-06 20:58:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-06 20:58:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 20:58:54,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:58:54,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:58:54,496 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-06 20:58:54,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:58:54,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:58:54,504 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-06 20:58:54,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:58:54 BoogieIcfgContainer [2024-11-06 20:58:54,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:58:54,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:58:54,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:58:54,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:58:54,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:58:53" (1/3) ... [2024-11-06 20:58:54,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2912a87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:58:54, skipping insertion in model container [2024-11-06 20:58:54,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:54" (2/3) ... [2024-11-06 20:58:54,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2912a87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:58:54, skipping insertion in model container [2024-11-06 20:58:54,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:58:54" (3/3) ... [2024-11-06 20:58:54,513 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2024-11-06 20:58:54,524 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:58:54,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:58:54,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:58:54,574 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;@4fc45414, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:58:54,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:58:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 47 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:58:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-06 20:58:54,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:58:54,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:58:54,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:58:54,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:58:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2097108812, now seen corresponding path program 1 times [2024-11-06 20:58:54,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:58:54,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685471947] [2024-11-06 20:58:54,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:58:54,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:58:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:58:54,684 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 20:58:54,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:58:54,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685471947] [2024-11-06 20:58:54,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685471947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:58:54,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:58:54,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:58:54,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035678627] [2024-11-06 20:58:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:58:54,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 20:58:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:58:54,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 20:58:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 20:58:54,704 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 47 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) 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 20:58:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:58:54,713 INFO L93 Difference]: Finished difference Result 94 states and 150 transitions. [2024-11-06 20:58:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 20:58:54,714 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 20:58:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:58:54,720 INFO L225 Difference]: With dead ends: 94 [2024-11-06 20:58:54,720 INFO L226 Difference]: Without dead ends: 45 [2024-11-06 20:58:54,723 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 20:58:54,728 INFO L432 NwaCegarLoop]: 68 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, 68 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 20:58:54,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 20:58:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-06 20:58:54,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-06 20:58:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 44 states have internal predecessors, (65), 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 20:58:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-11-06 20:58:54,752 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 10 [2024-11-06 20:58:54,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:58:54,753 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-11-06 20:58:54,753 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 20:58:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2024-11-06 20:58:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-06 20:58:54,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:58:54,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:58:54,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 20:58:54,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:58:54,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:58:54,755 INFO L85 PathProgramCache]: Analyzing trace with hash -238198385, now seen corresponding path program 1 times [2024-11-06 20:58:54,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:58:54,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425838582] [2024-11-06 20:58:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:58:54,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:58:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 20:58:54,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 20:58:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 20:58:54,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 20:58:54,830 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 20:58:54,831 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:58:54,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 20:58:54,834 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-06 20:58:54,847 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 20:58:54,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:58:54 BoogieIcfgContainer [2024-11-06 20:58:54,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 20:58:54,850 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 20:58:54,850 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 20:58:54,850 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 20:58:54,851 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:58:54" (3/4) ... [2024-11-06 20:58:54,852 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-06 20:58:54,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 20:58:54,853 INFO L158 Benchmark]: Toolchain (without parser) took 993.18ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 56.3MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-06 20:58:54,853 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 20:58:54,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.45ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 103.4MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 20:58:54,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.34ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:58:54,854 INFO L158 Benchmark]: Boogie Preprocessor took 54.35ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 98.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:58:54,854 INFO L158 Benchmark]: RCFGBuilder took 323.72ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 81.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 20:58:54,854 INFO L158 Benchmark]: TraceAbstraction took 342.79ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 56.3MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 20:58:54,855 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 142.6MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:58:54,856 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 214.45ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 103.4MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.34ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.35ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 98.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.72ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 81.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 342.79ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 56.3MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 142.6MB. Free memory is still 56.3MB. 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: 153]: 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 someBinaryDOUBLEComparisonOperation at line 139, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = -1.0 / 0.0; [L149] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481995, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, hx=2146435072, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=18014398509481985, two54_log=18014398509481984, x=18014398509481995, zero=0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=18014398509481985, two54_log=18014398509481984, x=18014398509481995, zero=0] [L149] RET, EXPR __ieee754_log(x) [L149] double res = __ieee754_log(x); [L152] CALL, EXPR isnan_double(res) [L139] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \result=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L152] RET, EXPR isnan_double(res) [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 68 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, 68 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=48occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 20:58:54,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0920b.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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:58:56,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:58:56,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 20:58:56,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:58:56,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:58:56,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:58:56,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:58:56,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:58:56,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:58:56,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:58:56,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:58:56,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:58:56,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:58:56,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:58:56,990 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:58:56,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:58:56,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:58:56,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:58:56,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:58:56,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:58:56,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:58:56,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:58:56,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:58:56,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:58:56,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:58:56,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:58:56,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:58:56,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:58:56,994 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 -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2024-11-06 20:58:57,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:58:57,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:58:57,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:58:57,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:58:57,400 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:58:57,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-11-06 20:58:58,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:58:58,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:58:58,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-11-06 20:58:58,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff71c4794/27ba86278ae54718a3c2a72386955e6d/FLAG3b21ed800 [2024-11-06 20:58:58,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff71c4794/27ba86278ae54718a3c2a72386955e6d [2024-11-06 20:58:58,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:58:58,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:58:58,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:58:58,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:58:58,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:58:58,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:58" (1/1) ... [2024-11-06 20:58:58,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b00208a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:58, skipping insertion in model container [2024-11-06 20:58:58,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:58" (1/1) ... [2024-11-06 20:58:58,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:58:59,001 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/double_req_bl_0920b.c[3940,3953] [2024-11-06 20:58:59,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:58:59,017 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:58:59,056 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/double_req_bl_0920b.c[3940,3953] [2024-11-06 20:58:59,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:58:59,075 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:58:59,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59 WrapperNode [2024-11-06 20:58:59,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:58:59,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:58:59,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:58:59,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:58:59,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,133 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 147 [2024-11-06 20:58:59,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:58:59,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:58:59,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:58:59,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:58:59,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,165 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-06 20:58:59,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:58:59,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:58:59,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:58:59,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:58:59,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (1/1) ... [2024-11-06 20:58:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:58:59,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:58:59,240 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 20:58:59,246 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 20:58:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 20:58:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 20:58:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:58:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 20:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 20:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 20:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 20:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 20:58:59,360 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:58:59,361 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:59:39,705 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-06 20:59:39,705 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:59:39,719 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:59:39,719 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-06 20:59:39,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:39 BoogieIcfgContainer [2024-11-06 20:59:39,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:59:39,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:59:39,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:59:39,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:59:39,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:58:58" (1/3) ... [2024-11-06 20:59:39,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:39, skipping insertion in model container [2024-11-06 20:59:39,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:59" (2/3) ... [2024-11-06 20:59:39,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:39, skipping insertion in model container [2024-11-06 20:59:39,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:39" (3/3) ... [2024-11-06 20:59:39,732 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2024-11-06 20:59:39,747 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:59:39,748 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:59:39,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:59:39,843 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;@2e75da6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:59:39,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:59:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 20:59:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-06 20:59:39,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:59:39,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:59:39,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:59:39,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:59:39,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2024-11-06 20:59:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 20:59:39,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219801956] [2024-11-06 20:59:39,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:59:39,873 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 20:59:39,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 20:59:39,876 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 20:59:39,878 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 20:59:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:59:40,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 20:59:40,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:59:40,645 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 20:59:40,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:59:40,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 20:59:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219801956] [2024-11-06 20:59:40,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219801956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:59:40,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:59:40,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:59:40,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132052095] [2024-11-06 20:59:40,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:59:40,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 20:59:40,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 20:59:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 20:59:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 20:59:40,670 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 20:59:40,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:59:40,679 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2024-11-06 20:59:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 20:59:40,680 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 20:59:40,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:59:40,684 INFO L225 Difference]: With dead ends: 56 [2024-11-06 20:59:40,684 INFO L226 Difference]: Without dead ends: 26 [2024-11-06 20:59:40,690 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 20:59:40,692 INFO L432 NwaCegarLoop]: 39 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, 39 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 20:59:40,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 20:59:40,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-06 20:59:40,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-06 20:59:40,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:59:40,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2024-11-06 20:59:40,714 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2024-11-06 20:59:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:59:40,714 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2024-11-06 20:59:40,714 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 20:59:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-06 20:59:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-06 20:59:40,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:59:40,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:59:40,733 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-06 20:59:40,916 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 20:59:40,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:59:40,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:59:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2024-11-06 20:59:40,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 20:59:40,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543979936] [2024-11-06 20:59:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:59:40,918 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 20:59:40,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 20:59:40,920 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 20:59:40,922 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 20:59:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:59:41,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 20:59:41,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:59:42,989 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 20:59:42,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:59:42,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 20:59:42,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543979936] [2024-11-06 20:59:42,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543979936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:59:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:59:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:59:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550267538] [2024-11-06 20:59:42,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:59:42,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:59:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 20:59:42,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:59:42,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:59:42,990 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:59:47,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 20:59:51,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 20:59:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:59:52,353 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2024-11-06 20:59:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:59:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-06 20:59:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:59:52,354 INFO L225 Difference]: With dead ends: 31 [2024-11-06 20:59:52,355 INFO L226 Difference]: Without dead ends: 13 [2024-11-06 20:59:52,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:59:52,355 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:59:52,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2024-11-06 20:59:52,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-06 20:59:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-06 20:59:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 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 20:59:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2024-11-06 20:59:52,357 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2024-11-06 20:59:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:59:52,358 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2024-11-06 20:59:52,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:59:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-06 20:59:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-06 20:59:52,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:59:52,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:59:52,375 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 20:59:52,558 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 20:59:52,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:59:52,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:59:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2024-11-06 20:59:52,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 20:59:52,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543895644] [2024-11-06 20:59:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:59:52,560 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 20:59:52,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 20:59:52,563 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 20:59:52,564 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 20:59:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:59:53,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-06 20:59:53,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:59:56,596 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 20:59:56,596 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:59:56,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 20:59:56,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543895644] [2024-11-06 20:59:56,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543895644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:59:56,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:59:56,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 20:59:56,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418574004] [2024-11-06 20:59:56,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:59:56,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 20:59:56,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 20:59:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 20:59:56,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:59:56,597 INFO L87 Difference]: Start difference. First operand 13 states and 12 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 20:59:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:59:59,252 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2024-11-06 20:59:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 20:59:59,252 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 20:59:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:59:59,253 INFO L225 Difference]: With dead ends: 13 [2024-11-06 20:59:59,253 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 20:59:59,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-06 20:59:59,255 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 20:59:59,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 20:59:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 20:59:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 20:59:59,256 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 20:59:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 20:59:59,256 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-11-06 20:59:59,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:59:59,256 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 20:59:59,256 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 20:59:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 20:59:59,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 20:59:59,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:59:59,286 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 20:59:59,463 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 20:59:59,467 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-06 20:59:59,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 21:00:00,243 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 21:00:00,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:00:00 BoogieIcfgContainer [2024-11-06 21:00:00,255 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 21:00:00,256 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 21:00:00,256 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 21:00:00,256 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 21:00:00,262 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:39" (3/4) ... [2024-11-06 21:00:00,264 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 21:00:00,272 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-06 21:00:00,273 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-06 21:00:00,273 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 21:00:00,273 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 21:00:00,375 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 21:00:00,375 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 21:00:00,375 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 21:00:00,376 INFO L158 Benchmark]: Toolchain (without parser) took 61534.78ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 55.7MB in the end (delta: 37.4MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-11-06 21:00:00,376 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 83.9MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 23.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:00:00,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.75ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 79.5MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 21:00:00,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:00:00,378 INFO L158 Benchmark]: Boogie Preprocessor took 64.75ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:00:00,378 INFO L158 Benchmark]: RCFGBuilder took 40519.94ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 58.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 21:00:00,379 INFO L158 Benchmark]: TraceAbstraction took 20533.36ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 60.8MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 21:00:00,379 INFO L158 Benchmark]: Witness Printer took 119.17ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 55.7MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 21:00:00,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 83.9MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 23.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.75ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 79.5MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.75ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 40519.94ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 58.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20533.36ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 60.8MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 119.17ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 55.7MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 153]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 10.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 52 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 5 QuantifiedInterpolants, 239 SizeOfPredicates, 5 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 21 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: 52]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-06 21:00:00,591 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-06 21:00:00,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE