./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1232b.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/float_req_bl_1232b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1232b.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:23:42,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:42,907 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:23:42,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:42,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:42,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:42,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:42,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:42,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:42,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:42,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:42,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:42,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:42,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:42,944 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:42,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:42,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:42,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:42,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:23:42,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:42,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:42,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:42,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:42,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:42,949 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:42,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:42,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:42,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:42,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:42,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:42,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:42,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:42,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:42,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:42,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:42,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:42,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:23:42,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:23:42,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:42,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:42,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:42,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:42,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:42,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:43,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:43,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:43,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:43,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:43,192 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:43,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-08-14 14:23:44,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:44,628 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:44,628 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-08-14 14:23:44,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6b96430/3ee838d63b1e468482b2f83d94b2104f/FLAGb2b790db8 [2024-08-14 14:23:44,651 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6b96430/3ee838d63b1e468482b2f83d94b2104f [2024-08-14 14:23:44,653 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:44,654 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:44,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1232b.yml/witness.yml [2024-08-14 14:23:44,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:44,711 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:44,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:44,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:44,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:44,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:44" (1/2) ... [2024-08-14 14:23:44,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456c47b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:44, skipping insertion in model container [2024-08-14 14:23:44,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:44" (1/2) ... [2024-08-14 14:23:44,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e3d603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:44, skipping insertion in model container [2024-08-14 14:23:44,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:44" (2/2) ... [2024-08-14 14:23:44,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456c47b5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44, skipping insertion in model container [2024-08-14 14:23:44,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:44" (2/2) ... [2024-08-14 14:23:44,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:44,900 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/float_req_bl_1232b.c[1657,1670] [2024-08-14 14:23:44,904 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:44,916 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:44,950 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/float_req_bl_1232b.c[1657,1670] [2024-08-14 14:23:44,950 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:44,963 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:44,964 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44 WrapperNode [2024-08-14 14:23:44,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:44,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:44,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:44,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:44,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:44,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:44,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,002 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 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 14:23:45,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:45,012 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:45,012 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:45,012 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:45,013 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (1/1) ... [2024-08-14 14:23:45,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:45,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:45,049 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 14:23:45,054 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 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2024-08-14 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2024-08-14 14:23:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2024-08-14 14:23:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:23:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2024-08-14 14:23:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-08-14 14:23:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2024-08-14 14:23:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2024-08-14 14:23:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:23:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:23:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:23:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:23:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:23:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:23:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-08-14 14:23:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-08-14 14:23:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-08-14 14:23:45,187 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:45,189 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:45,378 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:45,380 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:45,390 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:45,391 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:45,391 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:45 BoogieIcfgContainer [2024-08-14 14:23:45,391 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:45,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:45,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:45,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:45,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:44" (1/4) ... [2024-08-14 14:23:45,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc3abdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:45, skipping insertion in model container [2024-08-14 14:23:45,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:44" (2/4) ... [2024-08-14 14:23:45,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc3abdf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:45, skipping insertion in model container [2024-08-14 14:23:45,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:44" (3/4) ... [2024-08-14 14:23:45,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc3abdf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:45, skipping insertion in model container [2024-08-14 14:23:45,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:45" (4/4) ... [2024-08-14 14:23:45,401 INFO L119 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2024-08-14 14:23:45,402 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:45,420 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:45,420 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:45,443 INFO L92 WitnessUtils]: Constructing product of automaton with 45 states and violation witness of the following lengths: [17] [2024-08-14 14:23:45,447 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 14:23:45,503 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 191 states to 42 states. [2024-08-14 14:23:45,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:45,528 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;@65e7f10b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:45,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:45,529 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2024-08-14 14:23:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-08-14 14:23:45,534 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:45,534 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 14:23:45,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:45,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2044600389, now seen corresponding path program 1 times [2024-08-14 14:23:45,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:23:45,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832493999] [2024-08-14 14:23:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:23:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:23:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:23:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-08-14 14:23:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-14 14:23:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-08-14 14:23:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:45,825 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 14:23:45,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:23:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832493999] [2024-08-14 14:23:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832493999] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:23:45,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:23:45,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:23:45,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876149126] [2024-08-14 14:23:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:23:45,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:23:45,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:23:45,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:23:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:23:45,860 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 14:23:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:23:45,944 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2024-08-14 14:23:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:23:45,950 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 14:23:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:23:45,954 INFO L225 Difference]: With dead ends: 42 [2024-08-14 14:23:45,954 INFO L226 Difference]: Without dead ends: 42 [2024-08-14 14:23:45,956 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 14:23:45,962 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 14:23:45,963 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 14:23:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-08-14 14:23:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-08-14 14:23:45,992 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 14:23:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2024-08-14 14:23:45,998 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 38 [2024-08-14 14:23:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:23:45,999 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2024-08-14 14:23:45,999 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 14:23:45,999 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2024-08-14 14:23:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-08-14 14:23:46,001 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:46,001 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 14:23:46,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:23:46,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:46,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2023945840, now seen corresponding path program 1 times [2024-08-14 14:23:46,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:23:46,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057873707] [2024-08-14 14:23:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:23:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:46,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:46,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:23:46,110 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:46,113 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:46,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:23:46,119 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 14:23:46,123 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:46,144 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:46 BoogieIcfgContainer [2024-08-14 14:23:46,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:46,144 INFO L158 Benchmark]: Toolchain (without parser) took 1433.82ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 109.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:46,146 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:46,147 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:46,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.01ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 137.4MB in the end (delta: -43.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-08-14 14:23:46,148 INFO L158 Benchmark]: Boogie Preprocessor took 47.14ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 135.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:23:46,149 INFO L158 Benchmark]: IcfgBuilder took 378.94ms. Allocated memory is still 167.8MB. Free memory was 135.4MB in the beginning and 119.1MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:23:46,149 INFO L158 Benchmark]: TraceAbstraction took 750.11ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 109.2MB in the end (delta: 9.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-08-14 14:23:46,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.01ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 137.4MB in the end (delta: -43.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.14ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 135.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 378.94ms. Allocated memory is still 167.8MB. Free memory was 135.4MB in the beginning and 119.1MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 750.11ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 109.2MB in the end (delta: 9.4MB). Peak memory consumption was 5.9MB. 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: 72]: 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 someBinaryFLOATComparisonOperation at line 71, overapproximation of someUnaryFLOAToperation at line 66. Possible FailurePath: [L66] float x = -0.0f; [L67] float y = 0.0f; VAL [y=0] [L68] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=0] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L21] COND FALSE !(0) VAL [\old(x)=0, w=0, x=0] [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0, \result=2, x=0] [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L38] COND FALSE !(__fpclassify_float(x) == 0) [L40] CALL, EXPR __fpclassify_float(y) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L21] COND FALSE !(0) VAL [\old(x)=0, w=0, x=0] [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0, \result=2, x=0] [L40] RET, EXPR __fpclassify_float(y) VAL [\old(x)=0, \old(y)=0, x=0, y=0] [L40] COND FALSE !(__fpclassify_float(y) == 0) [L43] return x < y ? x : y; VAL [\old(x)=0, \old(y)=0, \result=0] [L68] RET, EXPR fmin_float(x, y) VAL [x=0, y=0] [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0, x=0, y=0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0, x=0, y=0] [L71] CALL, EXPR __signbit_float(res) VAL [\old(x)=0] [L47] __uint32_t w; VAL [\old(x)=0, x=0] [L50] ieee_float_shape_type gf_u; [L51] gf_u.value = (x) [L52] EXPR gf_u.word [L52] (w) = gf_u.word [L53] COND FALSE !(0) VAL [\old(x)=0, w=-4294967295, x=0] [L55] return (w & 0x80000000) != 0; VAL [\old(x)=0, \result=0, x=0] [L71] RET, EXPR __signbit_float(res) VAL [res=0, x=0, y=0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0, x=0, y=0] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] 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: 0.7s, 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, 0.0s 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 14:23:46,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1232b.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:23:48,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:48,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:23:48,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:48,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:48,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:48,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:48,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:48,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:48,111 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:48,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:48,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:48,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:48,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:48,112 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:48,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:48,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:48,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:48,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:48,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:48,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:48,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:48,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:48,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:48,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:48,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:48,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:48,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:48,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:48,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:48,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:48,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:48,120 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:23:48,120 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:23:48,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:48,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:48,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:48,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:48,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:48,124 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:23:48,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:48,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:48,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:48,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:48,411 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:48,412 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:48,413 INFO L431 ainManager$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/float_req_bl_1232b.yml/witness.yml [2024-08-14 14:23:48,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:48,472 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:48,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-08-14 14:23:49,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:49,970 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:49,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-08-14 14:23:49,978 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd0cee2ca/c034bf0b473e4511b178c7706aea001c/FLAG959315542 [2024-08-14 14:23:49,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd0cee2ca/c034bf0b473e4511b178c7706aea001c [2024-08-14 14:23:49,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:49,998 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:49,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:49,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:50,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:50,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:48" (1/2) ... [2024-08-14 14:23:50,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7ca098 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:48" (1/2) ... [2024-08-14 14:23:50,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a8df386 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:49" (2/2) ... [2024-08-14 14:23:50,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7ca098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:49" (2/2) ... [2024-08-14 14:23:50,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:50,176 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/float_req_bl_1232b.c[1657,1670] [2024-08-14 14:23:50,184 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:50,198 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:50,225 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/float_req_bl_1232b.c[1657,1670] [2024-08-14 14:23:50,227 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:50,245 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:50,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50 WrapperNode [2024-08-14 14:23:50,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:50,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:50,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:50,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:50,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,295 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 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 14:23:50,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:50,312 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:50,312 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:50,312 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:50,313 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (1/1) ... [2024-08-14 14:23:50,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:50,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:50,342 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 14:23:50,344 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 14:23:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2024-08-14 14:23:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2024-08-14 14:23:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2024-08-14 14:23:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:23:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2024-08-14 14:23:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:23:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:23:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-08-14 14:23:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-08-14 14:23:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-08-14 14:23:50,493 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:50,497 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:50,721 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:50,721 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:50,731 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:50,731 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:50,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:50 BoogieIcfgContainer [2024-08-14 14:23:50,733 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:50,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:50,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:50,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:50,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:48" (1/4) ... [2024-08-14 14:23:50,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b880ab and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:49" (2/4) ... [2024-08-14 14:23:50,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b880ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:50" (3/4) ... [2024-08-14 14:23:50,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b880ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:50, skipping insertion in model container [2024-08-14 14:23:50,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:50" (4/4) ... [2024-08-14 14:23:50,742 INFO L119 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2024-08-14 14:23:50,742 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:50,759 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:50,759 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:50,792 INFO L92 WitnessUtils]: Constructing product of automaton with 43 states and violation witness of the following lengths: [17] [2024-08-14 14:23:50,795 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 14:23:50,861 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 185 states to 40 states. [2024-08-14 14:23:50,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:50,886 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;@2df58db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:50,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2024-08-14 14:23:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-08-14 14:23:50,894 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:50,895 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 14:23:50,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:50,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash -408601390, now seen corresponding path program 1 times [2024-08-14 14:23:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:23:50,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877221399] [2024-08-14 14:23:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:50,912 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 14:23:50,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:23:50,915 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 14:23:50,916 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 14:23:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:23:50,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2024-08-14 14:23:50,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:23:51,016 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 14:23:51,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:23:51,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-14 14:23:51,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877221399] [2024-08-14 14:23:51,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877221399] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:23:51,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:23:51,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 14:23:51,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343251729] [2024-08-14 14:23:51,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:23:51,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 14:23:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-14 14:23:51,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 14:23:51,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 14:23:51,048 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 14:23:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:23:51,055 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2024-08-14 14:23:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 14:23:51,057 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 14:23:51,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:23:51,059 INFO L225 Difference]: With dead ends: 40 [2024-08-14 14:23:51,059 INFO L226 Difference]: Without dead ends: 40 [2024-08-14 14:23:51,061 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 14:23:51,064 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 14:23:51,065 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 14:23:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-08-14 14:23:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-08-14 14:23:51,099 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 14:23:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2024-08-14 14:23:51,102 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 36 [2024-08-14 14:23:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:23:51,102 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2024-08-14 14:23:51,102 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 14:23:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2024-08-14 14:23:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-08-14 14:23:51,104 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:51,104 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 14:23:51,108 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 14:23:51,305 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 14:23:51,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:51,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash 192612814, now seen corresponding path program 1 times [2024-08-14 14:23:51,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:23:51,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395137820] [2024-08-14 14:23:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:51,307 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 14:23:51,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:23:51,308 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 14:23:51,309 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 14:23:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:51,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:51,746 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:23:51,746 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:51,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:51,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-08-14 14:23:51,951 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 14:23:51,954 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 14:23:51,957 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:51,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:51 BoogieIcfgContainer [2024-08-14 14:23:51,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:51,979 INFO L158 Benchmark]: Toolchain (without parser) took 1981.01ms. Allocated memory is still 67.1MB. Free memory was 43.8MB in the beginning and 30.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-08-14 14:23:51,979 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 50.3MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:51,979 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 28.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:51,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 30.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:23:51,980 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 67.1MB. Free memory was 30.8MB in the beginning and 45.9MB in the end (delta: -15.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2024-08-14 14:23:51,980 INFO L158 Benchmark]: IcfgBuilder took 420.56ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 28.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:23:51,981 INFO L158 Benchmark]: TraceAbstraction took 1243.67ms. Allocated memory is still 67.1MB. Free memory was 27.5MB in the beginning and 30.8MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:51,982 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 0.16ms. Allocated memory is still 50.3MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 28.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 30.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 67.1MB. Free memory was 30.8MB in the beginning and 45.9MB in the end (delta: -15.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * IcfgBuilder took 420.56ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 28.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.67ms. Allocated memory is still 67.1MB. Free memory was 27.5MB in the beginning and 30.8MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 72]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L66] float x = -0.0f; [L67] float y = 0.0f; VAL [x=0.0, y=0.0] [L68] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0.0, \old(y)=0.0] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0.0] [L15] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L21] COND FALSE !(0) VAL [\old(x)=0.0, w=-2147483648, x=0.0] [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L38] COND FALSE !(__fpclassify_float(x) == 0) [L40] CALL, EXPR __fpclassify_float(y) VAL [\old(x)=0.0] [L15] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L21] COND FALSE !(0) VAL [\old(x)=0.0, w=0, x=0.0] [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L40] RET, EXPR __fpclassify_float(y) VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, y=0.0] [L40] COND FALSE !(__fpclassify_float(y) == 0) [L43] return x < y ? x : y; VAL [\old(x)=0.0, \old(y)=0.0, \result=0.0] [L68] RET, EXPR fmin_float(x, y) VAL [x=0.0, y=0.0] [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L71] CALL, EXPR __signbit_float(res) VAL [\old(x)=0.0] [L47] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L50] ieee_float_shape_type gf_u; [L51] gf_u.value = (x) [L52] EXPR gf_u.word [L52] (w) = gf_u.word [L53] COND FALSE !(0) VAL [\old(x)=0.0, w=0, x=0.0] [L55] return (w & 0x80000000) != 0; VAL [\old(x)=0.0, \result=0, x=0.0] [L71] RET, EXPR __signbit_float(res) VAL [res=0.0, x=0.0, y=0.0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0, x=0.0, y=0.0] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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 14:23:52,009 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