./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:44:42,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:44:42,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:44:42,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:44:42,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:44:42,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:44:42,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:44:42,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:44:42,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:44:42,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:44:42,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:44:42,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:44:42,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:44:42,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:44:42,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:44:42,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:44:42,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:44:42,127 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:44:42,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:44:42,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:44:42,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:44:42,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:44:42,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:44:42,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:44:42,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:44:42,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:44:42,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:44:42,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:44:42,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:44:42,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:44:42,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:44:42,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:44:42,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:44:42,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:44:42,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:44:42,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:44:42,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:44:42,133 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a [2024-11-18 11:44:42,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:44:42,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:44:42,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:44:42,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:44:42,342 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:44:42,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2024-11-18 11:44:43,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:44:43,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:44:43,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2024-11-18 11:44:43,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9ddc22f/7daf3a0c02924412834f6ddbadf02d43/FLAG497d1f24e [2024-11-18 11:44:43,748 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9ddc22f/7daf3a0c02924412834f6ddbadf02d43 [2024-11-18 11:44:43,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:44:43,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:44:43,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:44:43,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:44:43,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:44:43,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:44:43" (1/1) ... [2024-11-18 11:44:43,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5148afa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:43, skipping insertion in model container [2024-11-18 11:44:43,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:44:43" (1/1) ... [2024-11-18 11:44:43,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:44:43,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2024-11-18 11:44:43,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:44:43,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:44:44,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2024-11-18 11:44:44,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:44:44,042 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:44:44,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44 WrapperNode [2024-11-18 11:44:44,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:44:44,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:44:44,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:44:44,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:44:44,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,083 INFO L138 Inliner]: procedures = 20, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 340 [2024-11-18 11:44:44,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:44:44,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:44:44,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:44:44,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:44:44,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,126 INFO L175 MemorySlicer]: Split 44 memory accesses to 14 slices as follows [2, 2, 2, 2, 3, 3, 10, 3, 3, 3, 2, 3, 3, 3]. 23 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0]. The 24 writes are split as follows [0, 1, 1, 1, 1, 2, 6, 2, 2, 2, 1, 2, 1, 2]. [2024-11-18 11:44:44,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:44:44,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:44:44,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:44:44,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:44:44,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (1/1) ... [2024-11-18 11:44:44,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:44:44,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:44:44,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:44:44,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:44:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:44:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 11:44:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-18 11:44:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 11:44:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-18 11:44:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-18 11:44:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:44:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-18 11:44:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-18 11:44:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 11:44:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 11:44:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:44:44,388 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:44:44,389 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:44:44,657 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-18 11:44:44,658 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:44:44,672 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:44:44,672 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-18 11:44:44,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:44 BoogieIcfgContainer [2024-11-18 11:44:44,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:44:44,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:44:44,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:44:44,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:44:44,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:44:43" (1/3) ... [2024-11-18 11:44:44,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2c5e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:44:44, skipping insertion in model container [2024-11-18 11:44:44,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:44" (2/3) ... [2024-11-18 11:44:44,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2c5e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:44:44, skipping insertion in model container [2024-11-18 11:44:44,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:44" (3/3) ... [2024-11-18 11:44:44,682 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2024-11-18 11:44:44,694 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:44:44,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:44:44,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:44:44,746 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;@52bc45c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:44:44,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:44:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 84 states have (on average 1.6071428571428572) internal successors, (135), 85 states have internal predecessors, (135), 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) [2024-11-18 11:44:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 11:44:44,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:44,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:44,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:44,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1507967608, now seen corresponding path program 1 times [2024-11-18 11:44:44,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:44:44,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092919535] [2024-11-18 11:44:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:44,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:44:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:44,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:44:44,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092919535] [2024-11-18 11:44:44,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092919535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:44,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:44,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:44:44,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849930542] [2024-11-18 11:44:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:44,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:44:44,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:44:44,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:44:44,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:44:44,940 INFO L87 Difference]: Start difference. First operand has 86 states, 84 states have (on average 1.6071428571428572) internal successors, (135), 85 states have internal predecessors, (135), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:44:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:44,957 INFO L93 Difference]: Finished difference Result 170 states and 268 transitions. [2024-11-18 11:44:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:44:44,958 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-18 11:44:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:44,964 INFO L225 Difference]: With dead ends: 170 [2024-11-18 11:44:44,965 INFO L226 Difference]: Without dead ends: 83 [2024-11-18 11:44:44,967 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 [2024-11-18 11:44:44,971 INFO L432 NwaCegarLoop]: 110 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, 110 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 [2024-11-18 11:44:44,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:44:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-18 11:44:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-18 11:44:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 82 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:44:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2024-11-18 11:44:45,010 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 20 [2024-11-18 11:44:45,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:45,010 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2024-11-18 11:44:45,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:44:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2024-11-18 11:44:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:44:45,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:45,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:45,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:44:45,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:45,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash -814319829, now seen corresponding path program 1 times [2024-11-18 11:44:45,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:44:45,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525654043] [2024-11-18 11:44:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:45,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:44:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:45,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:44:45,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525654043] [2024-11-18 11:44:45,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525654043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:45,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:45,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:44:45,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805918698] [2024-11-18 11:44:45,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:45,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:44:45,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:44:45,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:44:45,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:44:45,242 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-18 11:44:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:45,259 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2024-11-18 11:44:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:44:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2024-11-18 11:44:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:45,263 INFO L225 Difference]: With dead ends: 86 [2024-11-18 11:44:45,263 INFO L226 Difference]: Without dead ends: 83 [2024-11-18 11:44:45,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:44:45,265 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:45,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:44:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-18 11:44:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-18 11:44:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.2926829268292683) internal successors, (106), 82 states have internal predecessors, (106), 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) [2024-11-18 11:44:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2024-11-18 11:44:45,274 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 23 [2024-11-18 11:44:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:45,274 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2024-11-18 11:44:45,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-18 11:44:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2024-11-18 11:44:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 11:44:45,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:45,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:45,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:44:45,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:45,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:45,276 INFO L85 PathProgramCache]: Analyzing trace with hash -899707275, now seen corresponding path program 1 times [2024-11-18 11:44:45,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:44:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88625097] [2024-11-18 11:44:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:45,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:44:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:45,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:44:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88625097] [2024-11-18 11:44:45,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88625097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:45,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:45,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 11:44:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158555457] [2024-11-18 11:44:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:45,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 11:44:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:44:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 11:44:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:44:45,556 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-18 11:44:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:45,600 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2024-11-18 11:44:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 11:44:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2024-11-18 11:44:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:45,601 INFO L225 Difference]: With dead ends: 99 [2024-11-18 11:44:45,601 INFO L226 Difference]: Without dead ends: 87 [2024-11-18 11:44:45,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:44:45,602 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:45,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 291 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:44:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-18 11:44:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-18 11:44:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.2823529411764707) internal successors, (109), 85 states have internal predecessors, (109), 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) [2024-11-18 11:44:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 109 transitions. [2024-11-18 11:44:45,608 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 109 transitions. Word has length 25 [2024-11-18 11:44:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:45,608 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 109 transitions. [2024-11-18 11:44:45,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-18 11:44:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 109 transitions. [2024-11-18 11:44:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 11:44:45,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:45,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:45,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 11:44:45,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:45,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:45,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1437758017, now seen corresponding path program 1 times [2024-11-18 11:44:45,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:44:45,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987540300] [2024-11-18 11:44:45,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:45,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:44:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:44:45,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:44:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:44:45,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:44:45,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:44:45,725 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:44:45,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 11:44:45,729 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-18 11:44:45,756 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:44:45,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:44:45 BoogieIcfgContainer [2024-11-18 11:44:45,762 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:44:45,762 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:44:45,762 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:44:45,763 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:44:45,763 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:44" (3/4) ... [2024-11-18 11:44:45,765 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:44:45,766 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:44:45,766 INFO L158 Benchmark]: Toolchain (without parser) took 2014.66ms. Allocated memory was 167.8MB in the beginning and 232.8MB in the end (delta: 65.0MB). Free memory was 94.2MB in the beginning and 111.3MB in the end (delta: -17.1MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,767 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:44:45,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.33ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 137.5MB in the end (delta: -43.4MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.80ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 134.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,769 INFO L158 Benchmark]: Boogie Preprocessor took 74.24ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,769 INFO L158 Benchmark]: RCFGBuilder took 509.71ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 96.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,770 INFO L158 Benchmark]: TraceAbstraction took 1086.06ms. Allocated memory was 167.8MB in the beginning and 232.8MB in the end (delta: 65.0MB). Free memory was 95.6MB in the beginning and 111.3MB in the end (delta: -15.7MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-11-18 11:44:45,770 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 232.8MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:44:45,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.33ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 137.5MB in the end (delta: -43.4MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.80ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 134.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.24ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 509.71ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 96.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1086.06ms. Allocated memory was 167.8MB in the beginning and 232.8MB in the end (delta: 65.0MB). Free memory was 95.6MB in the beginning and 111.3MB in the end (delta: -15.7MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 232.8MB. Free memory is still 111.3MB. 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: 152]: 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 151, overapproximation of someBinaryArithmeticDOUBLEoperation at line 146. Possible FailurePath: [L20] static const double one_modf = 1.0; VAL [one_modf=1] [L146] double x = -1.0 / 0.0; [L147] double iptr = __VERIFIER_nondet_double(); [L147] double iptr = __VERIFIER_nondet_double(); [L148] CALL, EXPR modf_double(x, &iptr) [L23] __int32_t i0, i1, j0; [L24] __uint32_t i; VAL [iptr={6:0}, one_modf=1, x=4294967319] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (i0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (i1) = ew_u.parts.lsw [L31] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [i0=-2147483648, i1=0, iptr={6:0}, j0=-1023, one_modf=1, x=4294967319] [L32] COND TRUE j0 < 20 VAL [one_modf=1] [L33] COND TRUE j0 < 0 VAL [one_modf=1] [L35] ieee_double_shape_type iw_u; [L36] iw_u.parts.msw = (i0 & 0x80000000) [L37] iw_u.parts.lsw = (0) [L38] EXPR iw_u.value [L38] (*iptr) = iw_u.value [L40] return x; VAL [\result=4294967319, i0=-2147483648, i1=0, iptr={6:0}, one_modf=1] [L148] RET, EXPR modf_double(x, &iptr) [L148] double res = modf_double(x, &iptr); [L151] EXPR \read(iptr) [L151] CALL, EXPR isinf_double(iptr) [L114] __int32_t hx, lx; VAL [one_modf=1, x=4294967320] [L116] ieee_double_shape_type ew_u; [L117] ew_u.value = (x) [L118] EXPR ew_u.parts.msw [L118] (hx) = ew_u.parts.msw [L119] EXPR ew_u.parts.lsw [L119] (lx) = ew_u.parts.lsw [L121] hx &= 0x7fffffff VAL [hx=2146435072, lx=0, one_modf=1, x=4294967320] [L122] EXPR lx | (-lx) VAL [hx=2146435072, one_modf=1, x=4294967320] [L122] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L123] hx = 0x7ff00000 - hx VAL [hx=0, one_modf=1, x=4294967320] [L124] EXPR hx | (-hx) VAL [one_modf=1, x=4294967320] [L124] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L151] RET, EXPR isinf_double(iptr) [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [one_modf=1, res=4294967319] [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L151] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_modf=1, res=4294967319] [L151] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_modf=1] [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [one_modf=1, res=4294967319] [L151] COND TRUE isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L152] reach_error() VAL [one_modf=1, res=4294967319] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 609 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 290 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 319 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 11:44:45,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:44:47,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:44:47,629 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:44:47,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:44:47,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:44:47,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:44:47,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:44:47,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:44:47,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:44:47,660 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:44:47,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:44:47,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:44:47,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:44:47,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:44:47,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:44:47,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:44:47,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:44:47,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:44:47,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:44:47,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:44:47,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:44:47,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:44:47,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:44:47,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:44:47,666 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:44:47,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:44:47,668 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:44:47,669 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:44:47,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:44:47,669 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:44:47,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:44:47,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:44:47,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:44:47,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:44:47,670 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:44:47,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:44:47,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:44:47,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:44:47,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:44:47,672 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a [2024-11-18 11:44:47,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:44:47,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:44:47,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:44:47,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:44:47,931 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:44:47,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2024-11-18 11:44:49,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:44:49,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:44:49,373 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2024-11-18 11:44:49,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849548dc7/674994cdbb0843c18693921b0733dece/FLAGc6ff7e9ff [2024-11-18 11:44:49,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849548dc7/674994cdbb0843c18693921b0733dece [2024-11-18 11:44:49,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:44:49,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:44:49,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:44:49,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:44:49,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:44:49,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:44:49" (1/1) ... [2024-11-18 11:44:49,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbefcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:49, skipping insertion in model container [2024-11-18 11:44:49,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:44:49" (1/1) ... [2024-11-18 11:44:49,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:44:50,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2024-11-18 11:44:50,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:44:50,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:44:50,072 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2024-11-18 11:44:50,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:44:50,093 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:44:50,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50 WrapperNode [2024-11-18 11:44:50,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:44:50,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:44:50,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:44:50,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:44:50,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,148 INFO L138 Inliner]: procedures = 23, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 259 [2024-11-18 11:44:50,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:44:50,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:44:50,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:44:50,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:44:50,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,188 INFO L175 MemorySlicer]: Split 44 memory accesses to 14 slices as follows [2, 3, 3, 3, 3, 2, 3, 3, 10, 2, 2, 2, 3, 3]. 23 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]. The 24 writes are split as follows [0, 2, 2, 2, 2, 1, 2, 1, 6, 1, 1, 1, 1, 2]. [2024-11-18 11:44:50,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:44:50,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:44:50,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:44:50,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:44:50,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (1/1) ... [2024-11-18 11:44:50,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:44:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:44:50,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:44:50,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:44:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-18 11:44:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#12 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#13 [2024-11-18 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-18 11:44:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-18 11:44:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-18 11:44:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-18 11:44:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-18 11:44:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-18 11:44:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-18 11:44:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#12 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#13 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:44:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-18 11:44:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-18 11:44:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#12 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#13 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-18 11:44:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-18 11:44:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:44:50,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:44:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-18 11:44:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-18 11:44:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-18 11:44:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-18 11:44:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-18 11:44:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:44:50,456 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:44:50,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:44:51,008 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-18 11:44:51,008 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:44:51,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:44:51,022 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-18 11:44:51,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:51 BoogieIcfgContainer [2024-11-18 11:44:51,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:44:51,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:44:51,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:44:51,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:44:51,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:44:49" (1/3) ... [2024-11-18 11:44:51,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c080e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:44:51, skipping insertion in model container [2024-11-18 11:44:51,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:44:50" (2/3) ... [2024-11-18 11:44:51,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c080e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:44:51, skipping insertion in model container [2024-11-18 11:44:51,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:51" (3/3) ... [2024-11-18 11:44:51,028 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2024-11-18 11:44:51,039 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:44:51,040 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:44:51,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:44:51,086 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;@1e547b91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:44:51,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:44:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 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) [2024-11-18 11:44:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-18 11:44:51,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:51,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:51,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:51,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2024-11-18 11:44:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:44:51,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362717867] [2024-11-18 11:44:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:51,112 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 [2024-11-18 11:44:51,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:44:51,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-11-18 11:44:51,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-18 11:44:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:51,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:44:51,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:44:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:51,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:44:51,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:44:51,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362717867] [2024-11-18 11:44:51,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362717867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:51,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:51,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:44:51,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947489866] [2024-11-18 11:44:51,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:44:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:44:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:44:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:44:51,309 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-18 11:44:51,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:51,325 INFO L93 Difference]: Finished difference Result 102 states and 164 transitions. [2024-11-18 11:44:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:44:51,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-18 11:44:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:51,334 INFO L225 Difference]: With dead ends: 102 [2024-11-18 11:44:51,335 INFO L226 Difference]: Without dead ends: 49 [2024-11-18 11:44:51,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:44:51,341 INFO L432 NwaCegarLoop]: 58 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, 58 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 [2024-11-18 11:44:51,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:44:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-18 11:44:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-18 11:44:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 48 states have internal predecessors, (55), 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) [2024-11-18 11:44:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2024-11-18 11:44:51,373 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2024-11-18 11:44:51,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:51,373 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2024-11-18 11:44:51,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-18 11:44:51,374 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2024-11-18 11:44:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 11:44:51,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:51,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:51,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 11:44:51,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-11-18 11:44:51,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:51,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1752581688, now seen corresponding path program 1 times [2024-11-18 11:44:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:44:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525991815] [2024-11-18 11:44:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:51,581 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 [2024-11-18 11:44:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:44:51,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-11-18 11:44:51,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-18 11:44:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:51,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 11:44:51,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:44:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:51,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:44:51,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:44:51,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525991815] [2024-11-18 11:44:51,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525991815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:51,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:51,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 11:44:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914305233] [2024-11-18 11:44:51,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:51,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 11:44:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:44:51,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 11:44:51,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 11:44:51,954 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-18 11:44:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:52,430 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2024-11-18 11:44:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 11:44:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2024-11-18 11:44:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:52,432 INFO L225 Difference]: With dead ends: 64 [2024-11-18 11:44:52,432 INFO L226 Difference]: Without dead ends: 27 [2024-11-18 11:44:52,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:44:52,433 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:52,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 77 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 11:44:52,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-18 11:44:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-18 11:44:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 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) [2024-11-18 11:44:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-11-18 11:44:52,442 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2024-11-18 11:44:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:52,443 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-11-18 11:44:52,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-18 11:44:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-11-18 11:44:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 11:44:52,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:52,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:52,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-18 11:44:52,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-11-18 11:44:52,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:52,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:52,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1408426499, now seen corresponding path program 1 times [2024-11-18 11:44:52,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:44:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427530582] [2024-11-18 11:44:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:52,646 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 [2024-11-18 11:44:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:44:52,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2024-11-18 11:44:52,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-18 11:44:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:52,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:44:52,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:44:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:52,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:44:52,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:44:52,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427530582] [2024-11-18 11:44:52,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427530582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:52,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:52,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:44:52,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901515077] [2024-11-18 11:44:52,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:52,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:44:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:44:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:44:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:44:52,942 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:44:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:52,964 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2024-11-18 11:44:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:44:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-18 11:44:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:52,965 INFO L225 Difference]: With dead ends: 30 [2024-11-18 11:44:52,966 INFO L226 Difference]: Without dead ends: 27 [2024-11-18 11:44:52,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:44:52,967 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:52,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:44:52,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-18 11:44:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-18 11:44:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-11-18 11:44:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-18 11:44:52,973 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 20 [2024-11-18 11:44:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:52,973 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-18 11:44:52,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:44:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-18 11:44:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-18 11:44:52,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:52,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:52,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-18 11:44:53,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2024-11-18 11:44:53,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:53,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash -605570489, now seen corresponding path program 1 times [2024-11-18 11:44:53,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:44:53,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202860969] [2024-11-18 11:44:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:53,177 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 [2024-11-18 11:44:53,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:44:53,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/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) [2024-11-18 11:44:53,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-18 11:44:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:53,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 11:44:53,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:44:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:53,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:44:53,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:44:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202860969] [2024-11-18 11:44:53,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202860969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 11:44:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860911717] [2024-11-18 11:44:53,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:53,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 11:44:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:44:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 11:44:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 11:44:53,619 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-18 11:44:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:54,331 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2024-11-18 11:44:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 11:44:54,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2024-11-18 11:44:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:54,331 INFO L225 Difference]: With dead ends: 31 [2024-11-18 11:44:54,332 INFO L226 Difference]: Without dead ends: 27 [2024-11-18 11:44:54,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:44:54,333 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:54,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 94 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 11:44:54,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-18 11:44:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-18 11:44:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 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) [2024-11-18 11:44:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2024-11-18 11:44:54,340 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 22 [2024-11-18 11:44:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:54,340 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2024-11-18 11:44:54,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-18 11:44:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2024-11-18 11:44:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 11:44:54,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:44:54,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:44:54,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-18 11:44:54,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/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 [2024-11-18 11:44:54,541 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:44:54,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:44:54,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1265561966, now seen corresponding path program 1 times [2024-11-18 11:44:54,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:44:54,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40096525] [2024-11-18 11:44:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:44:54,543 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 [2024-11-18 11:44:54,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:44:54,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/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) [2024-11-18 11:44:54,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-18 11:44:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:44:54,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 11:44:54,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:44:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:44:55,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:44:55,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:44:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40096525] [2024-11-18 11:44:55,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40096525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:44:55,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:44:55,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 11:44:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893358581] [2024-11-18 11:44:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:44:55,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 11:44:55,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:44:55,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 11:44:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 11:44:55,843 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-11-18 11:44:57,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:44:57,249 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2024-11-18 11:44:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 11:44:57,249 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 26 [2024-11-18 11:44:57,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:44:57,250 INFO L225 Difference]: With dead ends: 27 [2024-11-18 11:44:57,250 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:44:57,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-18 11:44:57,251 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:44:57,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 111 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 11:44:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:44:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:44:57,252 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) [2024-11-18 11:44:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:44:57,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-18 11:44:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:44:57,252 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:44:57,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-11-18 11:44:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:44:57,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:44:57,255 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:44:57,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-18 11:44:57,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/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 [2024-11-18 11:44:57,458 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 11:44:57,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:44:57,620 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:44:57,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:44:57 BoogieIcfgContainer [2024-11-18 11:44:57,635 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:44:57,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:44:57,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:44:57,635 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:44:57,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:44:51" (3/4) ... [2024-11-18 11:44:57,637 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:44:57,644 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-18 11:44:57,644 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-18 11:44:57,645 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 11:44:57,645 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 11:44:57,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:44:57,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:44:57,715 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:44:57,716 INFO L158 Benchmark]: Toolchain (without parser) took 7931.80ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 40.6MB in the beginning and 58.2MB in the end (delta: -17.6MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,716 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 79.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:44:57,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.71ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 48.6MB in the end (delta: -8.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.57ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,717 INFO L158 Benchmark]: Boogie Preprocessor took 82.20ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 41.3MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,717 INFO L158 Benchmark]: RCFGBuilder took 789.96ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 41.0MB in the beginning and 78.2MB in the end (delta: -37.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,717 INFO L158 Benchmark]: TraceAbstraction took 6610.94ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,717 INFO L158 Benchmark]: Witness Printer took 80.15ms. Allocated memory is still 123.7MB. Free memory was 64.6MB in the beginning and 58.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 11:44:57,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 79.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.71ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 48.6MB in the end (delta: -8.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.57ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.20ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 41.3MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 789.96ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 41.0MB in the beginning and 78.2MB in the end (delta: -37.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6610.94ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 80.15ms. Allocated memory is still 123.7MB. Free memory was 64.6MB in the beginning and 58.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 152]: 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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 390 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 143 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 32 QuantifiedInterpolants, 937 SizeOfPredicates, 15 NumberOfNonLiveVariables, 496 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 101]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-18 11:44:57,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE