./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.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 e2915ae970b23f9234beaed5f436ef87de022b558ff8241f79bda095bd417e23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:24:25,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:24:25,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 22:24:25,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:24:25,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:24:25,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:24:25,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:24:25,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:24:25,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:24:25,164 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:24:25,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:24:25,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:24:25,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:24:25,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:24:25,168 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:24:25,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:24:25,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:24:25,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:24:25,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 22:24:25,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:24:25,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:24:25,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:24:25,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:24:25,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:24:25,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:24:25,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:24:25,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:24:25,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:24:25,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:24:25,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:24:25,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:24:25,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:24:25,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:25,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:24:25,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:24:25,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:24:25,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 22:24:25,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 22:24:25,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:24:25,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:24:25,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:24:25,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:24:25,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2915ae970b23f9234beaed5f436ef87de022b558ff8241f79bda095bd417e23 [2024-10-23 22:24:25,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:24:25,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:24:25,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:24:25,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:24:25,496 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:24:25,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2024-10-23 22:24:26,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:24:27,124 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:24:27,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2024-10-23 22:24:27,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f7d4011a/afc6f9b40fd247d1958600377103b1ab/FLAGfbfc9bb84 [2024-10-23 22:24:27,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f7d4011a/afc6f9b40fd247d1958600377103b1ab [2024-10-23 22:24:27,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:24:27,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:24:27,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:27,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:24:27,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:24:27,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:27,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54481d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27, skipping insertion in model container [2024-10-23 22:24:27,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:27,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:24:27,831 WARN L248 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_1121a.c[3883,3896] [2024-10-23 22:24:27,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:27,855 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:24:27,922 WARN L248 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_1121a.c[3883,3896] [2024-10-23 22:24:27,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:27,944 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:24:27,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27 WrapperNode [2024-10-23 22:24:27,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:27,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:27,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:24:27,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:24:27,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:27,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,020 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 442 [2024-10-23 22:24:28,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:28,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:24:28,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:24:28,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:24:28,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,076 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 5, 3, 3, 3, 3]. 26 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0]. The 6 writes are split as follows [0, 0, 1, 2, 1, 2]. [2024-10-23 22:24:28,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:24:28,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:24:28,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:24:28,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:24:28,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (1/1) ... [2024-10-23 22:24:28,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:28,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:24:28,155 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) [2024-10-23 22:24:28,158 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 [2024-10-23 22:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:24:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 22:24:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 22:24:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 22:24:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 22:24:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-23 22:24:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-23 22:24:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-23 22:24:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-23 22:24:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-23 22:24:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-23 22:24:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-23 22:24:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-23 22:24:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-23 22:24:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:24:28,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:24:28,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 22:24:28,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 22:24:28,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 22:24:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 22:24:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-23 22:24:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-23 22:24:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-23 22:24:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-23 22:24:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-23 22:24:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-23 22:24:28,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-23 22:24:28,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-23 22:24:28,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:24:28,378 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:24:28,379 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:24:29,024 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-10-23 22:24:29,024 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:24:29,062 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:24:29,062 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:24:29,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:29 BoogieIcfgContainer [2024-10-23 22:24:29,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:24:29,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:24:29,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:24:29,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:24:29,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:24:27" (1/3) ... [2024-10-23 22:24:29,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3457a0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:29, skipping insertion in model container [2024-10-23 22:24:29,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:27" (2/3) ... [2024-10-23 22:24:29,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3457a0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:29, skipping insertion in model container [2024-10-23 22:24:29,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:29" (3/3) ... [2024-10-23 22:24:29,074 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2024-10-23 22:24:29,091 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:24:29,092 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:24:29,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:24:29,175 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;@51931140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:24:29,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:24:29,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 140 states have internal predecessors, (228), 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) [2024-10-23 22:24:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-23 22:24:29,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:29,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:29,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:29,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1484006034, now seen corresponding path program 1 times [2024-10-23 22:24:29,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:24:29,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656387866] [2024-10-23 22:24:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:29,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:24:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:29,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:24:29,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656387866] [2024-10-23 22:24:29,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656387866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:29,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:29,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:24:29,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014318823] [2024-10-23 22:24:29,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:29,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:24:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:24:29,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:24:29,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:29,412 INFO L87 Difference]: Start difference. First operand has 141 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 140 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:24:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:24:29,475 INFO L93 Difference]: Finished difference Result 281 states and 455 transitions. [2024-10-23 22:24:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:24:29,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-23 22:24:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:24:29,490 INFO L225 Difference]: With dead ends: 281 [2024-10-23 22:24:29,490 INFO L226 Difference]: Without dead ends: 139 [2024-10-23 22:24:29,493 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 [2024-10-23 22:24:29,499 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:24:29,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:24:29,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-23 22:24:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-10-23 22:24:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.5144927536231885) internal successors, (209), 138 states have internal predecessors, (209), 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) [2024-10-23 22:24:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 209 transitions. [2024-10-23 22:24:29,547 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 209 transitions. Word has length 13 [2024-10-23 22:24:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:24:29,548 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 209 transitions. [2024-10-23 22:24:29,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:24:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 209 transitions. [2024-10-23 22:24:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-23 22:24:29,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:29,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:29,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 22:24:29,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:29,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash -394219925, now seen corresponding path program 1 times [2024-10-23 22:24:29,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:24:29,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524481576] [2024-10-23 22:24:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:29,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:24:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:24:29,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-23 22:24:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:24:29,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-23 22:24:29,755 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-23 22:24:29,757 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:24:29,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 22:24:29,765 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-23 22:24:29,794 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:24:29,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:24:29 BoogieIcfgContainer [2024-10-23 22:24:29,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:24:29,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:24:29,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:24:29,802 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:24:29,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:29" (3/4) ... [2024-10-23 22:24:29,804 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-23 22:24:29,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:24:29,807 INFO L158 Benchmark]: Toolchain (without parser) took 2286.20ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 93.1MB in the beginning and 102.2MB in the end (delta: -9.1MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,808 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 108.8MB in the end (delta: 318.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:24:29,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.82ms. Allocated memory is still 151.0MB. Free memory was 93.1MB in the beginning and 77.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.01ms. Allocated memory is still 151.0MB. Free memory was 77.1MB in the beginning and 73.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,810 INFO L158 Benchmark]: Boogie Preprocessor took 97.91ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 69.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,811 INFO L158 Benchmark]: RCFGBuilder took 942.81ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 69.0MB in the beginning and 141.0MB in the end (delta: -71.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,811 INFO L158 Benchmark]: TraceAbstraction took 735.75ms. Allocated memory is still 207.6MB. Free memory was 139.9MB in the beginning and 103.2MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,811 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 207.6MB. Free memory was 103.2MB in the beginning and 102.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:24:29,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 108.8MB in the end (delta: 318.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.82ms. Allocated memory is still 151.0MB. Free memory was 93.1MB in the beginning and 77.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.01ms. Allocated memory is still 151.0MB. Free memory was 77.1MB in the beginning and 73.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.91ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 69.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 942.81ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 69.0MB in the beginning and 141.0MB in the end (delta: -71.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 735.75ms. Allocated memory is still 207.6MB. Free memory was 139.9MB in the beginning and 103.2MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 207.6MB. Free memory was 103.2MB in the beginning and 102.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 177]: 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 18, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L173] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, one_fmod=1, y=0] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=-2147483648, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967298, y=0] [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967298, y=0] [L45] EXPR hy | ly VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967298, y=0] [L45-L46] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967298, y=0] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967298, y=0] [L173] RET, EXPR fmod_double(x, y) [L173] double res = fmod_double(x, y); [L176] CALL, EXPR isnan_double(res) [L18] return x != x; [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 204 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-23 22:24:29,850 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.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 e2915ae970b23f9234beaed5f436ef87de022b558ff8241f79bda095bd417e23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:24:32,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:24:32,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-23 22:24:32,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:24:32,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:24:32,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:24:32,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:24:32,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:24:32,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:24:32,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:24:32,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:24:32,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:24:32,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:24:32,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:24:32,255 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:24:32,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:24:32,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:24:32,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:24:32,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:24:32,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:24:32,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:24:32,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:24:32,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:24:32,262 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-23 22:24:32,262 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-23 22:24:32,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:24:32,263 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-23 22:24:32,263 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:24:32,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:24:32,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:24:32,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:24:32,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:24:32,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:24:32,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:24:32,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:32,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:24:32,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:24:32,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:24:32,265 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-23 22:24:32,268 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-23 22:24:32,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:24:32,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:24:32,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:24:32,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:24:32,269 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-23 22:24:32,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2915ae970b23f9234beaed5f436ef87de022b558ff8241f79bda095bd417e23 [2024-10-23 22:24:32,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:24:32,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:24:32,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:24:32,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:24:32,623 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:24:32,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2024-10-23 22:24:34,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:24:34,582 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:24:34,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2024-10-23 22:24:34,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e6522590/a8a54b34512344708852524bb168987b/FLAG8379937a2 [2024-10-23 22:24:34,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e6522590/a8a54b34512344708852524bb168987b [2024-10-23 22:24:34,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:24:34,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:24:34,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:34,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:24:34,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:24:34,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:34" (1/1) ... [2024-10-23 22:24:34,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2759f810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:34, skipping insertion in model container [2024-10-23 22:24:34,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:34" (1/1) ... [2024-10-23 22:24:34,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:24:35,247 WARN L248 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_1121a.c[3883,3896] [2024-10-23 22:24:35,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:35,272 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:24:35,328 WARN L248 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_1121a.c[3883,3896] [2024-10-23 22:24:35,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:35,352 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:24:35,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35 WrapperNode [2024-10-23 22:24:35,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:35,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:35,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:24:35,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:24:35,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,415 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 228 [2024-10-23 22:24:35,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:35,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:24:35,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:24:35,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:24:35,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,470 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 5, 3, 3, 3]. 26 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0]. The 6 writes are split as follows [0, 2, 0, 1, 2, 1]. [2024-10-23 22:24:35,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:24:35,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:24:35,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:24:35,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:24:35,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (1/1) ... [2024-10-23 22:24:35,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:35,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:24:35,556 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) [2024-10-23 22:24:35,560 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 [2024-10-23 22:24:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:24:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-23 22:24:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-23 22:24:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-23 22:24:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-23 22:24:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-23 22:24:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-23 22:24:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-23 22:24:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-23 22:24:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-10-23 22:24:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-10-23 22:24:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-23 22:24:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-23 22:24:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-23 22:24:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-23 22:24:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-23 22:24:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-23 22:24:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:24:35,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:24:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-23 22:24:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-23 22:24:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-23 22:24:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-23 22:24:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-23 22:24:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-23 22:24:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:24:35,746 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:24:35,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:24:41,567 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-23 22:24:41,568 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:24:41,604 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:24:41,604 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:24:41,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:41 BoogieIcfgContainer [2024-10-23 22:24:41,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:24:41,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:24:41,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:24:41,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:24:41,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:24:34" (1/3) ... [2024-10-23 22:24:41,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7420a75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:41, skipping insertion in model container [2024-10-23 22:24:41,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:35" (2/3) ... [2024-10-23 22:24:41,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7420a75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:41, skipping insertion in model container [2024-10-23 22:24:41,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:41" (3/3) ... [2024-10-23 22:24:41,613 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2024-10-23 22:24:41,631 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:24:41,631 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:24:41,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:24:41,708 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;@7daed60a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:24:41,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:24:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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) [2024-10-23 22:24:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-23 22:24:41,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:41,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:41,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:41,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1583473967, now seen corresponding path program 1 times [2024-10-23 22:24:41,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:24:41,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362529105] [2024-10-23 22:24:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:41,747 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 [2024-10-23 22:24:41,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:24:41,751 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) [2024-10-23 22:24:41,753 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 [2024-10-23 22:24:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:42,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-23 22:24:42,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:24:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:42,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:24:42,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:24:42,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362529105] [2024-10-23 22:24:42,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362529105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:42,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:42,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:24:42,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055552083] [2024-10-23 22:24:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:42,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:24:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:24:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:24:42,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:42,622 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-23 22:24:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:24:42,790 INFO L93 Difference]: Finished difference Result 95 states and 177 transitions. [2024-10-23 22:24:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:24:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-10-23 22:24:42,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:24:42,806 INFO L225 Difference]: With dead ends: 95 [2024-10-23 22:24:42,807 INFO L226 Difference]: Without dead ends: 46 [2024-10-23 22:24:42,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:42,816 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:24:42,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:24:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-23 22:24:42,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-23 22:24:42,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6) internal successors, (72), 45 states have internal predecessors, (72), 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) [2024-10-23 22:24:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 72 transitions. [2024-10-23 22:24:42,849 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 72 transitions. Word has length 8 [2024-10-23 22:24:42,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:24:42,850 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 72 transitions. [2024-10-23 22:24:42,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-23 22:24:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2024-10-23 22:24:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-23 22:24:42,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:42,851 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:42,878 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 [2024-10-23 22:24:43,052 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 [2024-10-23 22:24:43,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:43,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1707486894, now seen corresponding path program 1 times [2024-10-23 22:24:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:24:43,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896956354] [2024-10-23 22:24:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:43,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:24:43,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:24:43,057 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) [2024-10-23 22:24:43,059 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 [2024-10-23 22:24:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:44,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-23 22:24:44,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:24:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:54,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:24:54,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:24:54,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896956354] [2024-10-23 22:24:54,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896956354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:54,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:54,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:24:54,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745466305] [2024-10-23 22:24:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:54,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 22:24:54,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:24:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 22:24:54,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:24:54,613 INFO L87 Difference]: Start difference. First operand 46 states and 72 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:24:59,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-23 22:25:03,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-23 22:25:04,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-23 22:25:10,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:11,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:14,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:15,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:21,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:22,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:25,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-23 22:25:29,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-23 22:25:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:25:29,509 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2024-10-23 22:25:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 22:25:29,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-23 22:25:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:25:29,542 INFO L225 Difference]: With dead ends: 50 [2024-10-23 22:25:29,542 INFO L226 Difference]: Without dead ends: 46 [2024-10-23 22:25:29,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:25:29,544 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 62 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2024-10-23 22:25:29,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 185 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 34.9s Time] [2024-10-23 22:25:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-23 22:25:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-23 22:25:29,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 45 states have internal predecessors, (71), 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) [2024-10-23 22:25:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 71 transitions. [2024-10-23 22:25:29,551 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 71 transitions. Word has length 10 [2024-10-23 22:25:29,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:25:29,552 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 71 transitions. [2024-10-23 22:25:29,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:25:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2024-10-23 22:25:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-23 22:25:29,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:25:29,553 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:25:29,577 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 [2024-10-23 22:25:29,753 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 [2024-10-23 22:25:29,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:25:29,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:25:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -376199059, now seen corresponding path program 1 times [2024-10-23 22:25:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:25:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23147074] [2024-10-23 22:25:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:25:29,756 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 [2024-10-23 22:25:29,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:25:29,759 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) [2024-10-23 22:25:29,760 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 [2024-10-23 22:25:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:25:29,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-23 22:25:29,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:25:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:25:30,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:25:30,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:25:30,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23147074] [2024-10-23 22:25:30,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23147074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:25:30,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:25:30,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 22:25:30,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261634920] [2024-10-23 22:25:30,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:25:30,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 22:25:30,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:25:30,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 22:25:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 22:25:30,910 INFO L87 Difference]: Start difference. First operand 46 states and 71 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:25:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:25:31,220 INFO L93 Difference]: Finished difference Result 46 states and 71 transitions. [2024-10-23 22:25:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 22:25:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-23 22:25:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:25:31,221 INFO L225 Difference]: With dead ends: 46 [2024-10-23 22:25:31,221 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 22:25:31,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:25:31,224 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:25:31,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:25:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 22:25:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 22:25:31,226 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) [2024-10-23 22:25:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 22:25:31,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-10-23 22:25:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:25:31,226 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 22:25:31,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:25:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 22:25:31,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 22:25:31,231 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:25:31,239 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 (4)] Forceful destruction successful, exit code 0 [2024-10-23 22:25:31,432 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 [2024-10-23 22:25:31,435 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-23 22:25:31,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 22:25:31,815 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:25:31,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:25:31 BoogieIcfgContainer [2024-10-23 22:25:31,833 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:25:31,833 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:25:31,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:25:31,834 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:25:31,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:41" (3/4) ... [2024-10-23 22:25:31,838 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 22:25:31,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-23 22:25:31,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-23 22:25:31,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-23 22:25:31,852 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 22:25:31,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 22:25:31,960 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 22:25:31,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:25:31,961 INFO L158 Benchmark]: Toolchain (without parser) took 57029.29ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 39.0MB in the beginning and 40.9MB in the end (delta: -1.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,961 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory is still 24.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:25:31,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.64ms. Allocated memory is still 62.9MB. Free memory was 38.9MB in the beginning and 40.4MB in the end (delta: -1.5MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.87ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,962 INFO L158 Benchmark]: Boogie Preprocessor took 100.58ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 34.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,963 INFO L158 Benchmark]: RCFGBuilder took 6083.96ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 34.2MB in the beginning and 38.2MB in the end (delta: -4.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,963 INFO L158 Benchmark]: TraceAbstraction took 50225.81ms. Allocated memory is still 77.6MB. Free memory was 37.5MB in the beginning and 45.6MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:25:31,963 INFO L158 Benchmark]: Witness Printer took 126.25ms. Allocated memory is still 77.6MB. Free memory was 45.6MB in the beginning and 40.9MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-23 22:25:31,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory is still 24.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.64ms. Allocated memory is still 62.9MB. Free memory was 38.9MB in the beginning and 40.4MB in the end (delta: -1.5MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.87ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.58ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 34.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6083.96ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 34.2MB in the beginning and 38.2MB in the end (delta: -4.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 50225.81ms. Allocated memory is still 77.6MB. Free memory was 37.5MB in the beginning and 45.6MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.25ms. Allocated memory is still 77.6MB. Free memory was 45.6MB in the beginning and 40.9MB in the end (delta: 4.7MB). 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: 177]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 35.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 34.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 133 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 137 SizeOfPredicates, 5 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-23 22:25:32,180 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-10-23 22:25:32,252 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE