./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1252b.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 26998269 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_1252b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1252b.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-2699826-m [2024-08-14 14:23:31,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:31,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:23:31,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:31,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:31,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:31,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:31,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:31,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:31,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:31,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:31,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:31,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:31,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:31,916 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:31,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:31,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:31,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:31,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:23:31,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:31,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:31,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:31,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:31,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:31,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:31,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:31,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:31,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:31,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:31,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:31,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:31,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:31,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:31,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:31,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:31,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:31,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:23:31,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:23:31,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:31,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:31,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:31,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:31,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:31,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:32,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:32,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:32,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:32,253 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:32,254 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:32,255 INFO L431 ainManager$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_1252b.yml/witness.yml [2024-08-14 14:23:32,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:32,339 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:32,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2024-08-14 14:23:33,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:33,985 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:33,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2024-08-14 14:23:33,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd2f8fa4/2edca8976b814927bf97bd729550db7c/FLAG9f36068c4 [2024-08-14 14:23:34,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd2f8fa4/2edca8976b814927bf97bd729550db7c [2024-08-14 14:23:34,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:34,339 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:34,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:34,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:34,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:34,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:32" (1/2) ... [2024-08-14 14:23:34,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79efabe3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:34, skipping insertion in model container [2024-08-14 14:23:34,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:32" (1/2) ... [2024-08-14 14:23:34,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bdae1f8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:34, skipping insertion in model container [2024-08-14 14:23:34,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:34" (2/2) ... [2024-08-14 14:23:34,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79efabe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34, skipping insertion in model container [2024-08-14 14:23:34,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:34" (2/2) ... [2024-08-14 14:23:34,376 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:34,538 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_1252b.c[2154,2167] [2024-08-14 14:23:34,543 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:34,553 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:34,575 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_1252b.c[2154,2167] [2024-08-14 14:23:34,576 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:34,591 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:34,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34 WrapperNode [2024-08-14 14:23:34,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:34,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:34,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:34,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:34,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,626 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]. [2024-08-14 14:23:34,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:34,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:34,641 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:34,641 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:34,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (1/1) ... [2024-08-14 14:23:34,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:34,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:34,678 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) [2024-08-14 14:23:34,679 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 [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2024-08-14 14:23:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-08-14 14:23:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-08-14 14:23:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-08-14 14:23:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-08-14 14:23:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:23:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:23:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:23:34,812 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:34,814 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:35,018 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:35,018 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:35,026 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:35,026 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:35,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:35 BoogieIcfgContainer [2024-08-14 14:23:35,027 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:35,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:35,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:35,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:35,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:32" (1/4) ... [2024-08-14 14:23:35,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e8f262 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:35, skipping insertion in model container [2024-08-14 14:23:35,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:34" (2/4) ... [2024-08-14 14:23:35,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e8f262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:35, skipping insertion in model container [2024-08-14 14:23:35,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:34" (3/4) ... [2024-08-14 14:23:35,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e8f262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:35, skipping insertion in model container [2024-08-14 14:23:35,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:35" (4/4) ... [2024-08-14 14:23:35,034 INFO L119 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2024-08-14 14:23:35,034 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:35,053 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:35,053 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:35,088 INFO L92 WitnessUtils]: Constructing product of automaton with 45 states and violation witness of the following lengths: [17] [2024-08-14 14:23:35,094 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 45 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:23:35,184 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 191 states to 42 states. [2024-08-14 14:23:35,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:35,208 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;@85cecec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:35,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2024-08-14 14:23:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-08-14 14:23:35,217 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:35,218 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] [2024-08-14 14:23:35,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:35,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:35,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1572036302, now seen corresponding path program 1 times [2024-08-14 14:23:35,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:23:35,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402130741] [2024-08-14 14:23:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:35,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:23:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:23:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:23:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-08-14 14:23:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-14 14:23:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-08-14 14:23:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 14:23:35,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:23:35,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402130741] [2024-08-14 14:23:35,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402130741] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:23:35,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:23:35,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:23:35,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117636823] [2024-08-14 14:23:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:23:35,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:23:35,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:23:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:23:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:23:35,584 INFO L87 Difference]: Start difference. First operand 42 states. 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) [2024-08-14 14:23:35,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:23:35,690 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2024-08-14 14:23:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:23:35,693 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 [2024-08-14 14:23:35,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:23:35,695 INFO L225 Difference]: With dead ends: 42 [2024-08-14 14:23:35,695 INFO L226 Difference]: Without dead ends: 42 [2024-08-14 14:23:35,698 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 [2024-08-14 14:23:35,702 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:23:35,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 53 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:23:35,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-08-14 14:23:35,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-08-14 14:23:35,731 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) [2024-08-14 14:23:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2024-08-14 14:23:35,733 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 38 [2024-08-14 14:23:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:23:35,734 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2024-08-14 14:23:35,734 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) [2024-08-14 14:23:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2024-08-14 14:23:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-08-14 14:23:35,736 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:35,736 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] [2024-08-14 14:23:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:23:35,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:35,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1381177051, now seen corresponding path program 1 times [2024-08-14 14:23:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:23:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527148835] [2024-08-14 14:23:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:35,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:23:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:35,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:35,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:23:35,943 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:35,949 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:35,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:23:35,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 14:23:35,960 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:35,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:35 BoogieIcfgContainer [2024-08-14 14:23:35,991 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:35,992 INFO L158 Benchmark]: Toolchain (without parser) took 1653.23ms. Allocated memory is still 192.9MB. Free memory was 160.3MB in the beginning and 78.5MB in the end (delta: 81.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-08-14 14:23:35,993 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 192.9MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:35,994 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 192.9MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:35,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.10ms. Allocated memory is still 192.9MB. Free memory was 160.3MB in the beginning and 147.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:23:35,996 INFO L158 Benchmark]: Boogie Preprocessor took 47.80ms. Allocated memory is still 192.9MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:23:35,997 INFO L158 Benchmark]: IcfgBuilder took 385.71ms. Allocated memory is still 192.9MB. Free memory was 145.6MB in the beginning and 128.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:23:35,997 INFO L158 Benchmark]: TraceAbstraction took 963.21ms. Allocated memory is still 192.9MB. Free memory was 128.0MB in the beginning and 78.5MB in the end (delta: 49.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-08-14 14:23:36,002 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 0.22ms. Allocated memory is still 192.9MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.53ms. Allocated memory is still 192.9MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.10ms. Allocated memory is still 192.9MB. Free memory was 160.3MB in the beginning and 147.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.80ms. Allocated memory is still 192.9MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 385.71ms. Allocated memory is still 192.9MB. Free memory was 145.6MB in the beginning and 128.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 963.21ms. Allocated memory is still 192.9MB. Free memory was 128.0MB in the beginning and 78.5MB in the end (delta: 49.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 87]: 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 86, overapproximation of someUnaryDOUBLEoperation at line 82. Possible FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; VAL [x=0] [L83] CALL, EXPR fmax_double(x, y) VAL [\old(x)=0, \old(y)=0] [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0, lsw=0, msw=2147483648, x=0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0, \result=2, x=0] [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L54] COND FALSE !(__fpclassify_double(x) == 0) [L56] CALL, EXPR __fpclassify_double(y) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0, lsw=0, msw=0, x=0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0, \result=2, x=0] [L56] RET, EXPR __fpclassify_double(y) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L56] COND FALSE !(__fpclassify_double(y) == 0) [L59] return x > y ? x : y; VAL [\old(x)=0, \old(y)=0, \result=0] [L83] RET, EXPR fmax_double(x, y) VAL [x=0, y=0] [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, x=0, y=0] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, x=0, y=0] [L86] CALL, EXPR __signbit_double(res) VAL [\old(x)=0] [L63] __uint32_t msw; VAL [\old(x)=0, x=0] [L66] ieee_double_shape_type gh_u; [L67] gh_u.value = (x) [L68] EXPR gh_u.parts.msw [L68] (msw) = gh_u.parts.msw [L69] COND FALSE !(0) VAL [\old(x)=0, msw=-2147483647, x=0] [L71] return (msw & 0x80000000) != 0; VAL [\old(x)=0, \result=1, x=0] [L86] RET, EXPR __signbit_double(res) VAL [res=0, x=0, y=0] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, x=0, y=0] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() VAL [res=0, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 28 mSDtfsCounter, 31 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=42occurred 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, 0.2s 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 [2024-08-14 14:23:36,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/double_req_bl_1252b.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-2699826-m [2024-08-14 14:23:38,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:38,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:23:38,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:38,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:38,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:38,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:38,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:38,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:38,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:38,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:38,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:38,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:38,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:38,341 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:38,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:38,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:38,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:38,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:38,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:38,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:38,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:38,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:38,348 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:23:38,348 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:23:38,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:38,349 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:23:38,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:38,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:38,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:38,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:38,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:38,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:38,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:38,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:38,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:38,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:38,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:38,353 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:23:38,353 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:23:38,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:38,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:38,355 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:38,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:38,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:38,355 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:23:38,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:38,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:38,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:38,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:38,721 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:38,722 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:38,725 INFO L431 ainManager$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_1252b.yml/witness.yml [2024-08-14 14:23:38,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:38,834 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:38,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2024-08-14 14:23:40,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:40,435 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-08-14 14:23:40,656 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:40,659 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2024-08-14 14:23:40,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/132a989fe/0c1bf4d8be3a440dbc1c81561e7557d8/FLAGc748afdb7 [2024-08-14 14:23:40,684 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/132a989fe/0c1bf4d8be3a440dbc1c81561e7557d8 [2024-08-14 14:23:40,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:40,686 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:40,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:40,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:40,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:40,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:38" (1/2) ... [2024-08-14 14:23:40,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbf5cdb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:40, skipping insertion in model container [2024-08-14 14:23:40,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:38" (1/2) ... [2024-08-14 14:23:40,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c47cafa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:40, skipping insertion in model container [2024-08-14 14:23:40,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:40" (2/2) ... [2024-08-14 14:23:40,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbf5cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:40, skipping insertion in model container [2024-08-14 14:23:40,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:40" (2/2) ... [2024-08-14 14:23:40,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:40,916 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_1252b.c[2154,2167] [2024-08-14 14:23:40,925 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:40,942 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:40,970 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_1252b.c[2154,2167] [2024-08-14 14:23:40,971 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:41,001 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:41,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41 WrapperNode [2024-08-14 14:23:41,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:41,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:41,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:41,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:41,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,051 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 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]. [2024-08-14 14:23:41,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:41,083 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:41,083 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:41,083 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:41,084 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (1/1) ... [2024-08-14 14:23:41,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:41,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:41,120 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) [2024-08-14 14:23:41,126 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 [2024-08-14 14:23:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2024-08-14 14:23:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2024-08-14 14:23:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2024-08-14 14:23:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2024-08-14 14:23:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-08-14 14:23:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-08-14 14:23:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-08-14 14:23:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-08-14 14:23:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-08-14 14:23:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-08-14 14:23:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2024-08-14 14:23:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2024-08-14 14:23:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-08-14 14:23:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:23:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-08-14 14:23:41,292 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:41,294 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:41,527 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:41,528 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:41,550 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:41,551 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:41,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:41 BoogieIcfgContainer [2024-08-14 14:23:41,551 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:41,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:41,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:41,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:41,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:38" (1/4) ... [2024-08-14 14:23:41,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c36d798 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:41, skipping insertion in model container [2024-08-14 14:23:41,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:40" (2/4) ... [2024-08-14 14:23:41,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c36d798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:41, skipping insertion in model container [2024-08-14 14:23:41,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:41" (3/4) ... [2024-08-14 14:23:41,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c36d798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:41, skipping insertion in model container [2024-08-14 14:23:41,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:41" (4/4) ... [2024-08-14 14:23:41,561 INFO L119 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2024-08-14 14:23:41,562 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:41,587 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:41,587 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:41,615 INFO L92 WitnessUtils]: Constructing product of automaton with 43 states and violation witness of the following lengths: [17] [2024-08-14 14:23:41,619 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 43 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:23:41,698 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 185 states to 40 states. [2024-08-14 14:23:41,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:41,724 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;@2bc16dd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:41,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2024-08-14 14:23:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-08-14 14:23:41,733 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:41,734 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] [2024-08-14 14:23:41,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:41,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash -731600727, now seen corresponding path program 1 times [2024-08-14 14:23:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:23:41,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504797577] [2024-08-14 14:23:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:41,753 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 [2024-08-14 14:23:41,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:23:41,758 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) [2024-08-14 14:23:41,759 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 [2024-08-14 14:23:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:41,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2024-08-14 14:23:41,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:23:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-14 14:23:41,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:23:41,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-14 14:23:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504797577] [2024-08-14 14:23:41,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504797577] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:23:41,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:23:41,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 14:23:41,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88161841] [2024-08-14 14:23:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:23:41,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 14:23:41,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-14 14:23:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 14:23:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 14:23:41,961 INFO L87 Difference]: Start difference. First operand 40 states. 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) [2024-08-14 14:23:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:23:41,972 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2024-08-14 14:23:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 14:23:41,974 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 [2024-08-14 14:23:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:23:41,976 INFO L225 Difference]: With dead ends: 40 [2024-08-14 14:23:41,977 INFO L226 Difference]: Without dead ends: 40 [2024-08-14 14:23:41,978 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 [2024-08-14 14:23:41,981 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2024-08-14 14:23:41,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:23:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-08-14 14:23:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-08-14 14:23:42,011 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) [2024-08-14 14:23:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2024-08-14 14:23:42,013 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 36 [2024-08-14 14:23:42,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:23:42,014 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2024-08-14 14:23:42,014 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) [2024-08-14 14:23:42,015 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2024-08-14 14:23:42,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-08-14 14:23:42,016 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:42,016 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] [2024-08-14 14:23:42,021 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 [2024-08-14 14:23:42,217 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 [2024-08-14 14:23:42,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:42,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1329004081, now seen corresponding path program 1 times [2024-08-14 14:23:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:23:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557441375] [2024-08-14 14:23:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:42,220 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 [2024-08-14 14:23:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:23:42,223 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) [2024-08-14 14:23:42,224 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 [2024-08-14 14:23:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:42,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:42,500 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:23:42,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:42,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:42,511 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 [2024-08-14 14:23:42,708 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 [2024-08-14 14:23:42,712 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 14:23:42,714 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:42,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:42 BoogieIcfgContainer [2024-08-14 14:23:42,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:42,756 INFO L158 Benchmark]: Toolchain (without parser) took 2069.98ms. Allocated memory is still 90.2MB. Free memory was 66.8MB in the beginning and 29.3MB in the end (delta: 37.5MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2024-08-14 14:23:42,758 INFO L158 Benchmark]: Witness Parser took 1.02ms. Allocated memory is still 65.0MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:42,758 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 65.0MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:42,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.17ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 53.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:23:42,761 INFO L158 Benchmark]: Boogie Preprocessor took 79.78ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 50.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:23:42,761 INFO L158 Benchmark]: IcfgBuilder took 468.91ms. Allocated memory is still 90.2MB. Free memory was 50.6MB in the beginning and 69.1MB in the end (delta: -18.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-08-14 14:23:42,762 INFO L158 Benchmark]: TraceAbstraction took 1201.89ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 29.3MB in the end (delta: 39.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-08-14 14:23:42,763 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 1.02ms. Allocated memory is still 65.0MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.54ms. Allocated memory is still 65.0MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.17ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 53.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.78ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 50.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 468.91ms. Allocated memory is still 90.2MB. Free memory was 50.6MB in the beginning and 69.1MB in the end (delta: -18.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1201.89ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 29.3MB in the end (delta: 39.2MB). Peak memory consumption was 39.8MB. 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: 87]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; VAL [x=0.0, y=0.0] [L83] CALL, EXPR fmax_double(x, y) VAL [\old(x)=0.0, \old(y)=0.0] [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0.0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=0, x=0.0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L54] COND FALSE !(__fpclassify_double(x) == 0) [L56] CALL, EXPR __fpclassify_double(y) VAL [\old(x)=0.0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=-2147483648, x=0.0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L56] RET, EXPR __fpclassify_double(y) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L56] COND FALSE !(__fpclassify_double(y) == 0) [L59] return x > y ? x : y; VAL [\old(x)=0.0, \old(y)=0.0, \result=0.0] [L83] RET, EXPR fmax_double(x, y) VAL [x=0.0, y=0.0] [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0.0, x=0.0, y=0.0] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0.0, x=0.0, y=0.0] [L86] CALL, EXPR __signbit_double(res) VAL [\old(x)=0.0] [L63] __uint32_t msw; VAL [\old(x)=0.0, x=0.0] [L66] ieee_double_shape_type gh_u; [L67] gh_u.value = (x) [L68] EXPR gh_u.parts.msw [L68] (msw) = gh_u.parts.msw [L69] COND FALSE !(0) VAL [\old(x)=0.0, msw=-2147483648, x=0.0] [L71] return (msw & 0x80000000) != 0; VAL [\old(x)=0.0, \result=1, x=0.0] [L86] RET, EXPR __signbit_double(res) VAL [res=0.0, x=0.0, y=0.0] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0.0, x=0.0, y=0.0] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() VAL [res=0.0, x=0.0, y=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 34 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, 34 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=40occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s 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! [2024-08-14 14:23:42,795 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