./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/soft_float_4-3a.c.cil.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/bitvector/soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/soft_float_4-3a.c.cil.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 14:12:37,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:12:38,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:12:38,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:12:38,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:12:38,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:12:38,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:12:38,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:12:38,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:12:38,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:12:38,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:12:38,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:12:38,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:12:38,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:12:38,050 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:12:38,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:12:38,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:12:38,051 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:12:38,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:12:38,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:12:38,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:12:38,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:12:38,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:12:38,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:12:38,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:12:38,054 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:12:38,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:12:38,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:12:38,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:12:38,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:12:38,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:12:38,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:12:38,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:12:38,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:12:38,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:12:38,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:12:38,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:12:38,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:12:38,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:12:38,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:12:38,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:12:38,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:12:38,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:12:38,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:12:38,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:12:38,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:12:38,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:12:38,335 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:12:38,336 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:12:38,338 INFO L431 ainManager$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/soft_float_4-3a.c.cil.yml/witness.yml [2024-08-14 14:12:38,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:12:38,425 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:12:38,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-08-14 14:12:39,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:12:40,108 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:12:40,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-08-14 14:12:40,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe3c8896a/f65a122809d847c79290a9f325ac2151/FLAGfc1bca8dd [2024-08-14 14:12:40,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe3c8896a/f65a122809d847c79290a9f325ac2151 [2024-08-14 14:12:40,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:12:40,452 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:12:40,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:40,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:12:40,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:12:40,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:38" (1/2) ... [2024-08-14 14:12:40,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67903c23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:40, skipping insertion in model container [2024-08-14 14:12:40,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:38" (1/2) ... [2024-08-14 14:12:40,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@718f57b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:40, skipping insertion in model container [2024-08-14 14:12:40,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:40" (2/2) ... [2024-08-14 14:12:40,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67903c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40, skipping insertion in model container [2024-08-14 14:12:40,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:40" (2/2) ... [2024-08-14 14:12:40,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:12:40,643 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-08-14 14:12:40,693 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:40,702 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:12:40,712 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-08-14 14:12:40,744 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:40,760 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:12:40,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40 WrapperNode [2024-08-14 14:12:40,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:40,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:12:40,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:12:40,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:12:40,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,829 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-14 14:12:40,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:12:40,861 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:12:40,861 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:12:40,861 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:12:40,862 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (1/1) ... [2024-08-14 14:12:40,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:12:40,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:40,903 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 14:12:40,912 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 14:12:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:12:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:12:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:12:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:12:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:12:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:12:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:12:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:12:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:12:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:12:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:12:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:12:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:12:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:12:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:12:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:12:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:12:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:12:41,050 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:12:41,052 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:12:41,510 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-08-14 14:12:41,510 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:12:41,522 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:12:41,523 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:12:41,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:41 BoogieIcfgContainer [2024-08-14 14:12:41,525 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:12:41,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:12:41,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:12:41,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:12:41,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:38" (1/4) ... [2024-08-14 14:12:41,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a40fb24 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:41, skipping insertion in model container [2024-08-14 14:12:41,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:12:40" (2/4) ... [2024-08-14 14:12:41,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a40fb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:41, skipping insertion in model container [2024-08-14 14:12:41,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:40" (3/4) ... [2024-08-14 14:12:41,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a40fb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:41, skipping insertion in model container [2024-08-14 14:12:41,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:41" (4/4) ... [2024-08-14 14:12:41,533 INFO L119 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2024-08-14 14:12:41,534 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:12:41,554 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:12:41,554 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:12:41,582 INFO L92 WitnessUtils]: Constructing product of automaton with 97 states and violation witness of the following lengths: [23] [2024-08-14 14:12:41,590 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 97 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 78 states have internal predecessors, (115), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-08-14 14:12:41,921 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 967 states to 265 states. [2024-08-14 14:12:41,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:12:41,954 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;@13ce53d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:12:41,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:12:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states. [2024-08-14 14:12:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-08-14 14:12:41,966 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:41,967 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:41,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:41,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1401032877, now seen corresponding path program 1 times [2024-08-14 14:12:41,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:41,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669459917] [2024-08-14 14:12:41,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:41,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:12:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:12:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:12:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-08-14 14:12:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,391 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-14 14:12:42,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669459917] [2024-08-14 14:12:42,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669459917] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:12:42,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:12:42,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:12:42,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288631821] [2024-08-14 14:12:42,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:12:42,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:12:42,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:42,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:12:42,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:12:42,426 INFO L87 Difference]: Start difference. First operand 265 states. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:42,497 INFO L93 Difference]: Finished difference Result 156 states and 201 transitions. [2024-08-14 14:12:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:12:42,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-08-14 14:12:42,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:42,504 INFO L225 Difference]: With dead ends: 156 [2024-08-14 14:12:42,506 INFO L226 Difference]: Without dead ends: 154 [2024-08-14 14:12:42,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:12:42,511 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 6 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:42,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 173 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:12:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-08-14 14:12:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 149. [2024-08-14 14:12:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 123 states have internal predecessors, (159), 17 states have call successors, (17), 11 states have call predecessors, (17), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-14 14:12:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 193 transitions. [2024-08-14 14:12:42,564 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 193 transitions. Word has length 59 [2024-08-14 14:12:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:42,564 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 193 transitions. [2024-08-14 14:12:42,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 193 transitions. [2024-08-14 14:12:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-08-14 14:12:42,569 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:42,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:42,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:12:42,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:42,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -696687681, now seen corresponding path program 1 times [2024-08-14 14:12:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:42,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505278016] [2024-08-14 14:12:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:12:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:12:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:12:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-08-14 14:12:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:12:42,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:42,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505278016] [2024-08-14 14:12:42,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505278016] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:12:42,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:12:42,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:12:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486112409] [2024-08-14 14:12:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:12:42,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:12:42,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:42,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:12:42,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:12:42,732 INFO L87 Difference]: Start difference. First operand 149 states and 193 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:42,771 INFO L93 Difference]: Finished difference Result 149 states and 192 transitions. [2024-08-14 14:12:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:12:42,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-08-14 14:12:42,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:42,773 INFO L225 Difference]: With dead ends: 149 [2024-08-14 14:12:42,773 INFO L226 Difference]: Without dead ends: 149 [2024-08-14 14:12:42,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:12:42,775 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:42,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:12:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-08-14 14:12:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-08-14 14:12:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 123 states have internal predecessors, (158), 17 states have call successors, (17), 11 states have call predecessors, (17), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-14 14:12:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 192 transitions. [2024-08-14 14:12:42,798 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 192 transitions. Word has length 60 [2024-08-14 14:12:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:42,798 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 192 transitions. [2024-08-14 14:12:42,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 192 transitions. [2024-08-14 14:12:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-08-14 14:12:42,801 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:42,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:42,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:12:42,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:42,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:42,802 INFO L85 PathProgramCache]: Analyzing trace with hash 264926336, now seen corresponding path program 1 times [2024-08-14 14:12:42,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:42,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032489610] [2024-08-14 14:12:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:42,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:12:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:12:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:12:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-08-14 14:12:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:12:43,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032489610] [2024-08-14 14:12:43,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032489610] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:12:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746778247] [2024-08-14 14:12:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:43,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:43,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:43,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:43,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:12:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:43,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 14:12:43,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:12:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-14 14:12:43,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:12:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:12:43,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746778247] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:12:43,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:12:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-08-14 14:12:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640090959] [2024-08-14 14:12:43,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:12:43,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-14 14:12:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:43,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-14 14:12:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-08-14 14:12:43,639 INFO L87 Difference]: Start difference. First operand 149 states and 192 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:12:43,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:43,873 INFO L93 Difference]: Finished difference Result 165 states and 211 transitions. [2024-08-14 14:12:43,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 14:12:43,873 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 60 [2024-08-14 14:12:43,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:43,875 INFO L225 Difference]: With dead ends: 165 [2024-08-14 14:12:43,875 INFO L226 Difference]: Without dead ends: 162 [2024-08-14 14:12:43,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-08-14 14:12:43,876 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 95 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:43,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1070 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:12:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-08-14 14:12:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2024-08-14 14:12:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.2905982905982907) internal successors, (151), 119 states have internal predecessors, (151), 16 states have call successors, (16), 10 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 14 states have call successors, (15) [2024-08-14 14:12:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 182 transitions. [2024-08-14 14:12:43,886 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 182 transitions. Word has length 60 [2024-08-14 14:12:43,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:43,886 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 182 transitions. [2024-08-14 14:12:43,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:12:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 182 transitions. [2024-08-14 14:12:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-08-14 14:12:43,888 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:43,888 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:43,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:12:44,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:44,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:44,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash -739544728, now seen corresponding path program 1 times [2024-08-14 14:12:44,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:44,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225241862] [2024-08-14 14:12:44,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:44,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:44,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:12:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:44,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:12:44,234 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:12:44,235 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:12:44,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-14 14:12:44,240 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-14 14:12:44,243 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:12:44,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:12:44 BoogieIcfgContainer [2024-08-14 14:12:44,265 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:12:44,266 INFO L158 Benchmark]: Toolchain (without parser) took 3813.96ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 79.0MB in the beginning and 72.8MB in the end (delta: 6.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,266 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:44,266 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:44,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.36ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 64.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,266 INFO L158 Benchmark]: Boogie Preprocessor took 95.84ms. Allocated memory is still 138.4MB. Free memory was 64.8MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,267 INFO L158 Benchmark]: IcfgBuilder took 664.10ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 62.2MB in the beginning and 142.6MB in the end (delta: -80.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,267 INFO L158 Benchmark]: TraceAbstraction took 2738.11ms. Allocated memory is still 178.3MB. Free memory was 142.6MB in the beginning and 72.8MB in the end (delta: 69.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.36ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 64.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.84ms. Allocated memory is still 138.4MB. Free memory was 64.8MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 664.10ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 62.2MB in the beginning and 142.6MB in the end (delta: -80.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2738.11ms. Allocated memory is still 178.3MB. Free memory was 142.6MB in the beginning and 72.8MB in the end (delta: 69.8MB). Peak memory consumption was 68.7MB. 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: 17]: 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 bitwiseOr at line 110, overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; VAL [ea=127, eb=-127] [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L241] RET, EXPR base2flt(0, 0) VAL [ea=127, eb=-127] [L241] zero = base2flt(0, 0) [L242] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, m=33554432] [L80] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, m=33554432] [L242] RET, EXPR base2flt(ma, ea) VAL [ea=127, eb=-127, ma=33554432] [L242] a = base2flt(ma, ea) [L243] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m)=4311744512] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L76] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=4311744512, e=-127, m=4311744512] [L76] EXPR m & ~ (1U << 24U) [L76] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=4311744512, e=-127] [L76] m = m & ~ (1U << 24U) [L77] EXPR m | ((unsigned int )(e + 128) << 24U) [L77] EXPR m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m)=4311744512] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-127, \old(m)=4311744512, __retres4=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m)=4311744512, \result=16777216] [L243] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, ea=127, eb=-127, ma=33554432, mb=4311744512] [L243] b = base2flt(mb, eb) [L244] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=16777216] [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L94] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L101] COND FALSE !(! b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L108] ma = a & ((1U << 24U) - 1U) [L109] ea = (int )(a >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L110] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L110] EXPR ma | (1U << 24U) [L110] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127] [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) [L112] eb = (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=-4261412865, mb=0] [L113] EXPR mb | (1U << 24U) [L113] EXPR mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=-4261412865] [L113] mb = mb | (1U << 24U) [L114] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L114] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=-4261412865, mb=16777216] [L115] delta = ea - eb VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, delta=254, ea=127, ma=-4261412865, mb=16777216] [L116] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0] [L17] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 1421 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1133 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 288 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 SizeOfPredicates, 2 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 96/105 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 14:12:44,312 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/bitvector/soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/soft_float_4-3a.c.cil.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 14:12:46,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:12:46,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:12:46,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:12:46,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:12:46,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:12:46,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:12:46,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:12:46,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:12:46,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:12:46,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:12:46,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:12:46,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:12:46,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:12:46,605 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:12:46,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:12:46,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:12:46,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:12:46,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:12:46,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:12:46,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:12:46,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:12:46,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:12:46,611 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:12:46,611 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:12:46,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:12:46,611 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:12:46,612 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:12:46,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:12:46,612 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:12:46,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:12:46,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:12:46,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:12:46,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:12:46,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:12:46,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:12:46,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:12:46,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:12:46,615 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:12:46,615 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:12:46,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:12:46,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:12:46,616 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:12:46,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:12:46,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:12:46,617 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:12:46,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:12:46,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:12:46,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:12:46,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:12:46,951 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:12:46,953 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:12:46,955 INFO L431 ainManager$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/soft_float_4-3a.c.cil.yml/witness.yml [2024-08-14 14:12:47,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:12:47,031 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:12:47,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-08-14 14:12:48,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:12:48,772 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:12:48,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-08-14 14:12:48,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19bd5e41/9e1ba3ef7a4043ef98f3dbb9bb87047e/FLAG47908d8a5 [2024-08-14 14:12:49,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19bd5e41/9e1ba3ef7a4043ef98f3dbb9bb87047e [2024-08-14 14:12:49,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:12:49,152 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:12:49,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:49,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:12:49,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:12:49,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:47" (1/2) ... [2024-08-14 14:12:49,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5f49d5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:49, skipping insertion in model container [2024-08-14 14:12:49,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:47" (1/2) ... [2024-08-14 14:12:49,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55a896c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:49, skipping insertion in model container [2024-08-14 14:12:49,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:49" (2/2) ... [2024-08-14 14:12:49,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5f49d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49, skipping insertion in model container [2024-08-14 14:12:49,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:49" (2/2) ... [2024-08-14 14:12:49,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:12:49,362 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-08-14 14:12:49,405 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:49,417 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:12:49,427 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-08-14 14:12:49,450 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:49,467 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:12:49,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49 WrapperNode [2024-08-14 14:12:49,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:49,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:12:49,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:12:49,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:12:49,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,497 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-14 14:12:49,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:12:49,512 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:12:49,512 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:12:49,512 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:12:49,513 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (1/1) ... [2024-08-14 14:12:49,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:12:49,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:49,572 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 14:12:49,574 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 14:12:49,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:12:49,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:12:49,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:12:49,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:12:49,611 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:12:49,611 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:12:49,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:12:49,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:12:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:12:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:12:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:12:49,683 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:12:49,685 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:12:50,039 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-08-14 14:12:50,039 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:12:50,050 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:12:50,050 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:12:50,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:50 BoogieIcfgContainer [2024-08-14 14:12:50,051 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:12:50,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:12:50,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:12:50,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:12:50,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:47" (1/4) ... [2024-08-14 14:12:50,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516796 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:50, skipping insertion in model container [2024-08-14 14:12:50,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:12:49" (2/4) ... [2024-08-14 14:12:50,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:50, skipping insertion in model container [2024-08-14 14:12:50,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:49" (3/4) ... [2024-08-14 14:12:50,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:50, skipping insertion in model container [2024-08-14 14:12:50,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:50" (4/4) ... [2024-08-14 14:12:50,059 INFO L119 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2024-08-14 14:12:50,059 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:12:50,074 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:12:50,075 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:12:50,105 INFO L92 WitnessUtils]: Constructing product of automaton with 72 states and violation witness of the following lengths: [23] [2024-08-14 14:12:50,108 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 72 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 53 states have internal predecessors, (71), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-08-14 14:12:50,324 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 741 states to 194 states. [2024-08-14 14:12:50,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:12:50,348 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;@5c50db5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:12:50,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:12:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2024-08-14 14:12:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-08-14 14:12:50,359 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:50,360 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1] [2024-08-14 14:12:50,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:50,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 574595495, now seen corresponding path program 1 times [2024-08-14 14:12:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:12:50,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711810186] [2024-08-14 14:12:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:50,381 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 14:12:50,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:12:50,385 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 14:12:50,386 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 14:12:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:50,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:12:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:50,581 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:12:50,584 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:12:50,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:12:50,592 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 (2)] Forceful destruction successful, exit code 0 [2024-08-14 14:12:50,790 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 14:12:50,794 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:12:50,797 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:12:50,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:12:50 BoogieIcfgContainer [2024-08-14 14:12:50,823 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:12:50,824 INFO L158 Benchmark]: Toolchain (without parser) took 1672.15ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 31.6MB in the beginning and 37.8MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-14 14:12:50,825 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 50.3MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:50,825 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory is still 23.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:50,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.18ms. Allocated memory is still 65.0MB. Free memory was 31.3MB in the beginning and 38.9MB in the end (delta: -7.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-08-14 14:12:50,826 INFO L158 Benchmark]: Boogie Preprocessor took 42.87ms. Allocated memory is still 65.0MB. Free memory was 38.9MB in the beginning and 36.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:12:50,826 INFO L158 Benchmark]: IcfgBuilder took 538.80ms. Allocated memory is still 65.0MB. Free memory was 36.2MB in the beginning and 34.7MB in the end (delta: 1.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-08-14 14:12:50,829 INFO L158 Benchmark]: TraceAbstraction took 770.95ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 37.8MB in the end (delta: -4.1MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-08-14 14:12:50,831 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 0.21ms. Allocated memory is still 50.3MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory is still 23.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.18ms. Allocated memory is still 65.0MB. Free memory was 31.3MB in the beginning and 38.9MB in the end (delta: -7.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.87ms. Allocated memory is still 65.0MB. Free memory was 38.9MB in the beginning and 36.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 538.80ms. Allocated memory is still 65.0MB. Free memory was 36.2MB in the beginning and 34.7MB in the end (delta: 1.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 770.95ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 37.8MB in the end (delta: -4.1MB). Peak memory consumption was 9.7MB. 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: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L241] RET, EXPR base2flt(0, 0) [L241] zero = base2flt(0, 0) [L242] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=-2147483648] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=-2147483648, __retres4=-1, m=-2147483648] [L80] return (__retres4); VAL [\old(e)=127, \old(m)=-2147483648, \result=-1, m=-2147483648] [L242] RET, EXPR base2flt(ma, ea) VAL [ea=127, ma=-2147483648] [L242] a = base2flt(ma, ea) [L243] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=-2147483648] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-2147483648] [L243] RET, EXPR base2flt(mb, eb) VAL [a=-1, ea=127, eb=0, ma=-2147483648, mb=16777216] [L243] b = base2flt(mb, eb) [L244] CALL addflt(a, b) VAL [\old(a)=-1, \old(b)=-2147483648] [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L94] COND FALSE !(a < b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L101] COND FALSE !(! b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L108] ma = a & ((1U << 24U) - 1U) [L109] ea = (int )(a >> 24U) - 128 [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) [L112] eb = (int )(b >> 24U) - 128 [L113] mb = mb | (1U << 24U) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L114] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L114] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L115] delta = ea - eb VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, delta=127, ea=127, ma=33554431, mb=16777216] [L116] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0] [L17] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:12:50,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE