./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1232b.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1232b.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:17:12,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:17:12,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:17:12,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:17:12,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:17:12,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:17:12,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:17:12,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:17:12,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:17:12,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:17:12,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:17:12,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:17:12,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:17:12,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:17:12,198 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:17:12,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:17:12,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:17:12,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:17:12,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:17:12,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:17:12,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:17:12,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:17:12,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:17:12,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:17:12,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:17:12,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:17:12,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:17:12,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:17:12,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:17:12,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:17:12,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:17:12,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:17:12,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:17:12,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:17:12,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:17:12,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:17:12,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:17:12,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:17:12,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:17:12,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:17:12,212 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:17:12,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:17:12,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:17:12,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:17:12,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:17:12,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:17:12,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:17:12,527 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:17:12,528 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:17:12,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1232b.yml/witness.yml [2024-08-15 18:17:12,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:17:12,605 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:17:12,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2024-08-15 18:17:14,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:17:14,391 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:17:14,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2024-08-15 18:17:14,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429139ea1/8dde7b4f7a5a454ab0bcdee876e6663d/FLAG8d5a9d195 [2024-08-15 18:17:14,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429139ea1/8dde7b4f7a5a454ab0bcdee876e6663d [2024-08-15 18:17:14,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:17:14,423 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:17:14,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:14,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:17:14,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:17:14,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:12" (1/2) ... [2024-08-15 18:17:14,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeae999 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:14, skipping insertion in model container [2024-08-15 18:17:14,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:12" (1/2) ... [2024-08-15 18:17:14,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7436c12e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:14, skipping insertion in model container [2024-08-15 18:17:14,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:14" (2/2) ... [2024-08-15 18:17:14,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeae999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14, skipping insertion in model container [2024-08-15 18:17:14,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:14" (2/2) ... [2024-08-15 18:17:14,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:17:14,680 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c[1958,1971] [2024-08-15 18:17:14,692 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:14,713 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:17:14,746 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c[1958,1971] [2024-08-15 18:17:14,749 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:14,770 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:17:14,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14 WrapperNode [2024-08-15 18:17:14,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:14,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:17:14,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:17:14,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:17:14,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,824 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-08-15 18:17:14,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:17:14,848 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:17:14,849 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:17:14,849 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:17:14,850 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (1/1) ... [2024-08-15 18:17:14,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:17:14,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:17:14,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:17:14,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:17:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:17:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:17:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:17:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2024-08-15 18:17:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2024-08-15 18:17:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2024-08-15 18:17:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2024-08-15 18:17:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:17:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-08-15 18:17:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:17:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-15 18:17:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:17:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-15 18:17:15,048 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:17:15,050 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:17:15,283 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-08-15 18:17:15,283 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:17:15,304 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:17:15,305 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:17:15,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:15 BoogieIcfgContainer [2024-08-15 18:17:15,306 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:17:15,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:17:15,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:17:15,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:17:15,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:12" (1/4) ... [2024-08-15 18:17:15,313 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:17:15,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e691226 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:17:15, skipping insertion in model container [2024-08-15 18:17:15,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:17:14" (2/4) ... [2024-08-15 18:17:15,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e691226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:15, skipping insertion in model container [2024-08-15 18:17:15,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:14" (3/4) ... [2024-08-15 18:17:15,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e691226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:15, skipping insertion in model container [2024-08-15 18:17:15,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:15" (4/4) ... [2024-08-15 18:17:15,320 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2024-08-15 18:17:15,347 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:17:15,347 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:17:15,398 INFO L90 WitnessUtils]: Constructing product of automaton with 45 states and violation witness of the following lengths: [17] [2024-08-15 18:17:15,503 INFO L95 WitnessUtils]: Product has 191 reachable states. [2024-08-15 18:17:15,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:17:15,535 INFO L357 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, mHoare=false, 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;@5588176a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:17:15,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:17:15,539 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2024-08-15 18:17:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-08-15 18:17:15,547 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:15,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:17:15,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:15,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1964786027, now seen corresponding path program 1 times [2024-08-15 18:17:15,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:17:15,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906211157] [2024-08-15 18:17:15,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:15,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:17:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:17:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-15 18:17:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-08-15 18:17:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:17:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-08-15 18:17:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-15 18:17:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:17:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906211157] [2024-08-15 18:17:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906211157] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:17:15,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:17:15,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:17:15,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124172801] [2024-08-15 18:17:15,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:17:15,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:17:15,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:17:16,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:17:16,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:17:16,033 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:17:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:17:16,169 INFO L93 Difference]: Finished difference Result 180 states and 195 transitions. [2024-08-15 18:17:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:17:16,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-08-15 18:17:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:17:16,180 INFO L225 Difference]: With dead ends: 180 [2024-08-15 18:17:16,180 INFO L226 Difference]: Without dead ends: 42 [2024-08-15 18:17:16,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:17:16,185 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 12 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:17:16,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 89 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:17:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-08-15 18:17:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-08-15 18:17:16,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0) internal successors, (30), 30 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-15 18:17:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2024-08-15 18:17:16,230 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 38 [2024-08-15 18:17:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:17:16,230 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2024-08-15 18:17:16,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:17:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2024-08-15 18:17:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-08-15 18:17:16,235 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:16,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:17:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:17:16,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:16,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1833773761, now seen corresponding path program 1 times [2024-08-15 18:17:16,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:17:16,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277827225] [2024-08-15 18:17:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:17:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:16,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:17:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:16,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:17:16,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:17:16,461 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:17:16,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-15 18:17:16,466 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:17:16,470 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:17:16,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:17:16 BoogieIcfgContainer [2024-08-15 18:17:16,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:17:16,502 INFO L158 Benchmark]: Toolchain (without parser) took 2077.78ms. Allocated memory is still 163.6MB. Free memory was 102.7MB in the beginning and 105.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:16,504 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:16,504 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:16,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.44ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:17:16,505 INFO L158 Benchmark]: Boogie Preprocessor took 75.07ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 87.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:17:16,507 INFO L158 Benchmark]: IcfgBuilder took 457.57ms. Allocated memory is still 163.6MB. Free memory was 87.7MB in the beginning and 70.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-15 18:17:16,507 INFO L158 Benchmark]: TraceAbstraction took 1191.57ms. Allocated memory is still 163.6MB. Free memory was 69.9MB in the beginning and 105.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:16,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.44ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.07ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 87.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 457.57ms. Allocated memory is still 163.6MB. Free memory was 87.7MB in the beginning and 70.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1191.57ms. Allocated memory is still 163.6MB. Free memory was 69.9MB in the beginning and 105.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: 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 81, overapproximation of someUnaryDOUBLEoperation at line 76. Possible FailurePath: [L76] double x = -0.0; [L77] double y = 0.0; VAL [y=0] [L78] CALL, EXPR fmin_double(x, y) VAL [\old(x)=0, \old(y)=0] [L48] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L28] COND FALSE !(0) VAL [\old(x)=0, lsw=12884901888, msw=8589934592, x=0] [L30-L31] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L32] return 2; VAL [\old(x)=0, \result=2, x=0] [L48] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L48] COND FALSE !(__fpclassify_double(x) == 0) [L50] CALL, EXPR __fpclassify_double(y) VAL [\old(x)=0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L28] COND FALSE !(0) VAL [\old(x)=0, lsw=4294967296, msw=2147483648, x=0] [L30-L31] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L32] return 2; VAL [\old(x)=0, \result=2, x=0] [L50] RET, EXPR __fpclassify_double(y) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L50] COND FALSE !(__fpclassify_double(y) == 0) [L53] return x < y ? x : y; VAL [\old(x)=0, \old(y)=0, \result=0] [L78] RET, EXPR fmin_double(x, y) VAL [x=0, y=0] [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0, x=0, y=0] [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0, x=0, y=0] [L81] CALL, EXPR __signbit_double(res) VAL [\old(x)=0] [L57] __uint32_t msw; VAL [\old(x)=0, x=0] [L60] ieee_double_shape_type gh_u; [L61] gh_u.value = (x) [L62] EXPR gh_u.parts.msw [L62] (msw) = gh_u.parts.msw [L63] COND FALSE !(0) VAL [\old(x)=0, msw=-4294967295, x=0] [L65] return (msw & 0x80000000) != 0; VAL [\old(x)=0, \result=0, x=0] [L81] RET, EXPR __signbit_double(res) VAL [res=0, x=0, y=0] [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0, x=0, y=0] [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() VAL [res=0, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 43 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.3s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 5/5 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 [2024-08-15 18:17:16,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1232b.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:17:18,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:17:18,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:17:18,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:17:18,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:17:18,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:17:18,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:17:18,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:17:18,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:17:18,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:17:18,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:17:18,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:17:18,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:17:18,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:17:18,986 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:17:18,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:17:18,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:17:18,987 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:17:18,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:17:18,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:17:18,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:17:18,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:17:18,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:17:18,993 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:17:18,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:17:18,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:17:18,997 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:17:18,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:17:18,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:17:18,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:17:18,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:17:18,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:17:18,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:17:18,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:17:18,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:17:18,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:17:19,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:17:19,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:17:19,001 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:17:19,001 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:17:19,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:17:19,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:17:19,002 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:17:19,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:17:19,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:17:19,002 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:17:19,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:17:19,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:17:19,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:17:19,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:17:19,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:17:19,388 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:17:19,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2024-08-15 18:17:21,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:17:21,325 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:17:21,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2024-08-15 18:17:21,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00825549f/faa5a57530de41d6ab1a0c023e7ee8ce/FLAG9d33c5cec [2024-08-15 18:17:21,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00825549f/faa5a57530de41d6ab1a0c023e7ee8ce [2024-08-15 18:17:21,362 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:17:21,363 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:17:21,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1232b.yml/witness.yml [2024-08-15 18:17:21,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:17:21,450 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:17:21,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:21,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:17:21,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:17:21,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:21" (1/2) ... [2024-08-15 18:17:21,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1358c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:21" (1/2) ... [2024-08-15 18:17:21,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53b7a4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:21" (2/2) ... [2024-08-15 18:17:21,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1358c4b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:21" (2/2) ... [2024-08-15 18:17:21,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:17:21,718 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c[1958,1971] [2024-08-15 18:17:21,731 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:21,748 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:17:21,780 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c[1958,1971] [2024-08-15 18:17:21,781 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:21,812 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:17:21,813 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21 WrapperNode [2024-08-15 18:17:21,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:21,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:17:21,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:17:21,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:17:21,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,874 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-08-15 18:17:21,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:17:21,917 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:17:21,920 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:17:21,920 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:17:21,921 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:17:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:17:21,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:17:21,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:17:22,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:17:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:17:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:17:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:17:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2024-08-15 18:17:22,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2024-08-15 18:17:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2024-08-15 18:17:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2024-08-15 18:17:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:17:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:17:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2024-08-15 18:17:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-15 18:17:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-08-15 18:17:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-08-15 18:17:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-08-15 18:17:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-08-15 18:17:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-08-15 18:17:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-08-15 18:17:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:17:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2024-08-15 18:17:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2024-08-15 18:17:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:17:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:17:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:17:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-15 18:17:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-08-15 18:17:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:17:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:17:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:17:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-15 18:17:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-08-15 18:17:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-08-15 18:17:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-08-15 18:17:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-15 18:17:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-08-15 18:17:22,139 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:17:22,142 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:17:22,422 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-08-15 18:17:22,422 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:17:22,431 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:17:22,432 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:17:22,432 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:22 BoogieIcfgContainer [2024-08-15 18:17:22,432 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:17:22,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:17:22,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:17:22,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:17:22,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:17:21" (1/4) ... [2024-08-15 18:17:22,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a505e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:21" (2/4) ... [2024-08-15 18:17:22,440 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:17:22,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a505e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21" (3/4) ... [2024-08-15 18:17:22,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a505e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:22" (4/4) ... [2024-08-15 18:17:22,445 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2024-08-15 18:17:22,464 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:17:22,464 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:17:22,499 INFO L90 WitnessUtils]: Constructing product of automaton with 43 states and violation witness of the following lengths: [17] [2024-08-15 18:17:22,590 INFO L95 WitnessUtils]: Product has 185 reachable states. [2024-08-15 18:17:22,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:17:22,625 INFO L357 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, mHoare=false, 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;@5a47e951, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:17:22,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:17:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 224 transitions. [2024-08-15 18:17:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-08-15 18:17:22,636 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:22,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:17:22,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:22,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:22,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1499968684, now seen corresponding path program 1 times [2024-08-15 18:17:22,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:17:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613835336] [2024-08-15 18:17:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:22,662 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 [2024-08-15 18:17:22,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:17:22,684 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) [2024-08-15 18:17:22,686 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 [2024-08-15 18:17:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2024-08-15 18:17:22,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:17:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-15 18:17:22,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:17:22,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-15 18:17:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613835336] [2024-08-15 18:17:22,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613835336] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:17:22,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:17:22,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-15 18:17:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417218008] [2024-08-15 18:17:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:17:22,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-15 18:17:22,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-15 18:17:22,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-15 18:17:22,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:17:22,899 INFO L87 Difference]: Start difference. First operand 185 states and 224 transitions. Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:17:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:17:22,909 INFO L93 Difference]: Finished difference Result 174 states and 189 transitions. [2024-08-15 18:17:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-15 18:17:22,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2024-08-15 18:17:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:17:22,918 INFO L225 Difference]: With dead ends: 174 [2024-08-15 18:17:22,920 INFO L226 Difference]: Without dead ends: 40 [2024-08-15 18:17:22,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:17:22,927 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:17:22,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:17:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-08-15 18:17:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-08-15 18:17:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-15 18:17:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2024-08-15 18:17:22,970 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 36 [2024-08-15 18:17:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:17:22,970 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2024-08-15 18:17:22,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:17:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2024-08-15 18:17:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-08-15 18:17:22,972 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:22,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:17:22,980 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 [2024-08-15 18:17:23,177 WARN L477 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 [2024-08-15 18:17:23,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:23,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:23,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1265829099, now seen corresponding path program 1 times [2024-08-15 18:17:23,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:17:23,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295519343] [2024-08-15 18:17:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:23,180 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 [2024-08-15 18:17:23,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:17:23,183 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) [2024-08-15 18:17:23,184 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 [2024-08-15 18:17:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:23,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:17:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:23,456 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:17:23,457 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:17:23,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:17:23,472 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 (3)] Ended with exit code 0 [2024-08-15 18:17:23,664 WARN L477 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 [2024-08-15 18:17:23,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:17:23,671 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:17:23,713 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:17:23 BoogieIcfgContainer [2024-08-15 18:17:23,714 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:17:23,715 INFO L158 Benchmark]: Toolchain (without parser) took 2264.31ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 22.0MB in the beginning and 28.4MB in the end (delta: -6.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,715 INFO L158 Benchmark]: CDTParser took 1.01ms. Allocated memory is still 54.5MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:23,715 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 24.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:23,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.40ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 21.8MB in the beginning and 43.7MB in the end (delta: -21.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,716 INFO L158 Benchmark]: Boogie Preprocessor took 100.77ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 40.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,717 INFO L158 Benchmark]: IcfgBuilder took 515.16ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 44.5MB in the end (delta: -3.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,717 INFO L158 Benchmark]: TraceAbstraction took 1279.62ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 28.4MB in the end (delta: 15.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01ms. Allocated memory is still 54.5MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 24.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.40ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 21.8MB in the beginning and 43.7MB in the end (delta: -21.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.77ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 40.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 515.16ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 44.5MB in the end (delta: -3.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1279.62ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 28.4MB in the end (delta: 15.5MB). Peak memory consumption was 15.8MB. 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 - CounterExampleResult [Line: 82]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L76] double x = -0.0; [L77] double y = 0.0; VAL [x=0.0, y=0.0] [L78] CALL, EXPR fmin_double(x, y) VAL [\old(x)=0.0, \old(y)=0.0] [L48] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0.0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L28] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=-2147483648, x=0.0] [L30-L31] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L32] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L48] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L48] COND FALSE !(__fpclassify_double(x) == 0) [L50] CALL, EXPR __fpclassify_double(y) VAL [\old(x)=0.0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L28] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=0, x=0.0] [L30-L31] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L32] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L50] RET, EXPR __fpclassify_double(y) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L50] COND FALSE !(__fpclassify_double(y) == 0) [L53] return x < y ? x : y; VAL [\old(x)=0.0, \old(y)=0.0, \result=0.0] [L78] RET, EXPR fmin_double(x, y) VAL [x=0.0, y=0.0] [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L81] CALL, EXPR __signbit_double(res) VAL [\old(x)=0.0] [L57] __uint32_t msw; VAL [\old(x)=0.0, x=0.0] [L60] ieee_double_shape_type gh_u; [L61] gh_u.value = (x) [L62] EXPR gh_u.parts.msw [L62] (msw) = gh_u.parts.msw [L63] COND FALSE !(0) VAL [\old(x)=0.0, msw=0, x=0.0] [L65] return (msw & 0x80000000) != 0; VAL [\old(x)=0.0, \result=0, x=0.0] [L81] RET, EXPR __signbit_double(res) VAL [res=0.0, x=0.0, y=0.0] [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() VAL [res=0.0, x=0.0, y=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 49 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 5/5 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 proved your program to be incorrect! [2024-08-15 18:17:23,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE