./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/cast_union_tight.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/cast_union_tight.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:23:15,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:15,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:23:15,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:15,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:15,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:15,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:15,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:15,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:15,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:15,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:15,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:15,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:15,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:15,656 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:15,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:15,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:15,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:15,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:23:15,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:15,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:15,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:15,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:15,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:15,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:15,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:15,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:15,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:15,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:15,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:15,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:15,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:15,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:15,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:15,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:15,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:15,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:23:15,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:23:15,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:15,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:15,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:15,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:15,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:15,668 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:15,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:15,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:15,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:15,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:15,936 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:15,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2024-08-14 14:23:17,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:17,622 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:17,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2024-08-14 14:23:17,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa461db9/1ded8fdce60447da948976d2fea64c5a/FLAGd16507800 [2024-08-14 14:23:17,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa461db9/1ded8fdce60447da948976d2fea64c5a [2024-08-14 14:23:17,648 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:17,649 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:17,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/cast_union_tight.yml/witness.yml [2024-08-14 14:23:17,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:17,704 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:17,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:17,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:17,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:17,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:17" (1/2) ... [2024-08-14 14:23:17,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385fc064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:17, skipping insertion in model container [2024-08-14 14:23:17,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:17" (1/2) ... [2024-08-14 14:23:17,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c6192d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:17, skipping insertion in model container [2024-08-14 14:23:17,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:17" (2/2) ... [2024-08-14 14:23:17,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385fc064 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17, skipping insertion in model container [2024-08-14 14:23:17,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:17" (2/2) ... [2024-08-14 14:23:17,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:17,887 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c[495,508] [2024-08-14 14:23:17,918 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:17,931 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:17,943 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c[495,508] [2024-08-14 14:23:17,958 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:17,978 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:17,979 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17 WrapperNode [2024-08-14 14:23:17,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:17,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:17,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:17,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:17,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:17,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,030 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 3, 5]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2024-08-14 14:23:18,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:18,057 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:18,059 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:18,060 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:18,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (1/1) ... [2024-08-14 14:23:18,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:18,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:23:18,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:23:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:23:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2024-08-14 14:23:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:23:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:23:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:23:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:23:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:23:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-08-14 14:23:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-08-14 14:23:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-08-14 14:23:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-08-14 14:23:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-08-14 14:23:18,236 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:18,239 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:18,387 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L23: havoc #t~mem7;havoc #t~mem8;call ULTIMATE.dealloc(~#x~0.base, ~#x~0.offset);havoc ~#x~0.base, ~#x~0.offset;call ULTIMATE.dealloc(~#y~0.base, ~#y~0.offset);havoc ~#y~0.base, ~#y~0.offset; [2024-08-14 14:23:18,452 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:18,452 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:18,462 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:18,463 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:18,463 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:18 BoogieIcfgContainer [2024-08-14 14:23:18,464 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:18,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:18,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:18,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:18,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:17" (1/4) ... [2024-08-14 14:23:18,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26937650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:18, skipping insertion in model container [2024-08-14 14:23:18,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:17" (2/4) ... [2024-08-14 14:23:18,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26937650 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:18, skipping insertion in model container [2024-08-14 14:23:18,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:17" (3/4) ... [2024-08-14 14:23:18,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26937650 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:18, skipping insertion in model container [2024-08-14 14:23:18,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:18" (4/4) ... [2024-08-14 14:23:18,476 INFO L119 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-08-14 14:23:18,477 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:18,499 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:18,499 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:18,531 INFO L92 WitnessUtils]: Constructing product of automaton with 28 states and violation witness of the following lengths: [5] [2024-08-14 14:23:18,535 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 28 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-14 14:23:18,575 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 35 states to 20 states. [2024-08-14 14:23:18,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:18,614 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;@d32710d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:18,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2024-08-14 14:23:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-14 14:23:18,623 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:18,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:23:18,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:18,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:18,633 INFO L85 PathProgramCache]: Analyzing trace with hash 860034397, now seen corresponding path program 1 times [2024-08-14 14:23:18,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:23:18,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045917811] [2024-08-14 14:23:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:18,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:23:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:18,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:18,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:23:18,955 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:18,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:18,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:23:18,966 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:23:18,970 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:18,982 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:18 BoogieIcfgContainer [2024-08-14 14:23:18,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:18,984 INFO L158 Benchmark]: Toolchain (without parser) took 1279.57ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 132.3MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:18,984 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:18,984 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:18,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.32ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 99.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:23:18,985 INFO L158 Benchmark]: Boogie Preprocessor took 75.03ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 96.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:23:18,986 INFO L158 Benchmark]: IcfgBuilder took 406.87ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 82.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:23:18,986 INFO L158 Benchmark]: TraceAbstraction took 515.59ms. Allocated memory is still 167.8MB. Free memory was 82.2MB in the beginning and 132.3MB in the end (delta: -50.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:18,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.32ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 99.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.03ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 96.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 406.87ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 82.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 515.59ms. Allocated memory is still 167.8MB. Free memory was 82.2MB in the beginning and 132.3MB in the end (delta: -50.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=0] [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] VAL [\old(i)=0, i=0, y={6:0}] [L22] EXPR i ^ x.i[1] [L22] EXPR i ^ x.i[1] VAL [\old(i)=0, y={6:0}] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; VAL [\old(i)=0] [L33] RET, EXPR cast(a) VAL [a=0] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0] [L9] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 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 could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:23:19,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/cast_union_tight.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:23:21,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:23:21,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:23:21,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:23:21,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:23:21,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:23:21,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:23:21,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:23:21,430 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:23:21,430 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:23:21,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:23:21,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:23:21,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:23:21,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:23:21,432 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:23:21,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:23:21,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:23:21,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:23:21,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:23:21,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:23:21,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:23:21,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:23:21,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:23:21,445 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:23:21,445 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:23:21,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:23:21,446 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:23:21,446 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:23:21,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:23:21,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:23:21,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:23:21,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:23:21,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:23:21,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:23:21,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:23:21,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:23:21,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:23:21,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:23:21,450 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:23:21,450 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:23:21,450 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:23:21,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:23:21,451 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:23:21,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:23:21,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:23:21,452 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:23:21,452 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:23:21,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:23:21,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:23:21,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:23:21,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:23:21,826 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:23:21,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2024-08-14 14:23:23,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:23:23,600 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:23:23,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2024-08-14 14:23:23,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c560e132b/519b6d39d4c24c839ebf26e9237052d4/FLAG1b9e8f8ef [2024-08-14 14:23:23,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c560e132b/519b6d39d4c24c839ebf26e9237052d4 [2024-08-14 14:23:23,627 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:23:23,631 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:23:23,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/cast_union_tight.yml/witness.yml [2024-08-14 14:23:23,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:23:23,699 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:23:23,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:23,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:23:23,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:23:23,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:23" (1/2) ... [2024-08-14 14:23:23,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36099b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:23, skipping insertion in model container [2024-08-14 14:23:23,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:23:23" (1/2) ... [2024-08-14 14:23:23,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7371c912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:23:23, skipping insertion in model container [2024-08-14 14:23:23,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:23" (2/2) ... [2024-08-14 14:23:23,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36099b58 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:23, skipping insertion in model container [2024-08-14 14:23:23,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:23" (2/2) ... [2024-08-14 14:23:23,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:23:23,899 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c[495,508] [2024-08-14 14:23:23,926 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:23,944 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:23:23,955 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c[495,508] [2024-08-14 14:23:23,986 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:23:24,013 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:23:24,014 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24 WrapperNode [2024-08-14 14:23:24,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:23:24,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:23:24,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:23:24,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:23:24,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,063 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 5, 3]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2024-08-14 14:23:24,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:23:24,096 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:23:24,096 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:23:24,096 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:23:24,097 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (1/1) ... [2024-08-14 14:23:24,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:23:24,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:23:24,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:23:24,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:23:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:23:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:23:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:23:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:23:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2024-08-14 14:23:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:23:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:23:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:23:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:23:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:23:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:23:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:23:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-08-14 14:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:23:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:23:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:23:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-08-14 14:23:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:23:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:23:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:23:24,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-08-14 14:23:24,321 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:23:24,323 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:23:24,553 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L23: havoc #t~mem6;havoc #t~mem7;call ULTIMATE.dealloc(~#x~0.base, ~#x~0.offset);havoc ~#x~0.base, ~#x~0.offset;call ULTIMATE.dealloc(~#y~0.base, ~#y~0.offset);havoc ~#y~0.base, ~#y~0.offset; [2024-08-14 14:23:24,608 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-08-14 14:23:24,608 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:23:24,622 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:23:24,622 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:23:24,623 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:24 BoogieIcfgContainer [2024-08-14 14:23:24,623 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:23:24,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:23:24,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:23:24,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:23:24,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:23:23" (1/4) ... [2024-08-14 14:23:24,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1b2da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:23:24, skipping insertion in model container [2024-08-14 14:23:24,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:23:23" (2/4) ... [2024-08-14 14:23:24,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1b2da8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:24, skipping insertion in model container [2024-08-14 14:23:24,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:23:24" (3/4) ... [2024-08-14 14:23:24,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1b2da8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:23:24, skipping insertion in model container [2024-08-14 14:23:24,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:23:24" (4/4) ... [2024-08-14 14:23:24,634 INFO L119 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-08-14 14:23:24,634 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:23:24,662 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:23:24,662 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:23:24,691 INFO L92 WitnessUtils]: Constructing product of automaton with 24 states and violation witness of the following lengths: [5] [2024-08-14 14:23:24,694 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-14 14:23:24,730 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 31 states to 16 states. [2024-08-14 14:23:24,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:23:24,758 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;@183c8a18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:23:24,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:23:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2024-08-14 14:23:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-08-14 14:23:24,767 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:23:24,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:23:24,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:23:24,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:23:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash 54525150, now seen corresponding path program 1 times [2024-08-14 14:23:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:23:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039344985] [2024-08-14 14:23:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:23:24,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:23:24,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:23:24,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-14 14:23:24,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-14 14:23:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:25,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:23:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:23:25,158 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:23:25,160 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:23:25,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:23:25,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-08-14 14:23:25,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:23:25,368 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:23:25,371 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:23:25,395 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:23:25 BoogieIcfgContainer [2024-08-14 14:23:25,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:23:25,400 INFO L158 Benchmark]: Toolchain (without parser) took 1700.96ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 34.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-08-14 14:23:25,400 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 54.5MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:25,400 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:25,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.72ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 50.8MB in the end (delta: -7.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-08-14 14:23:25,401 INFO L158 Benchmark]: Boogie Preprocessor took 78.71ms. Allocated memory is still 73.4MB. Free memory was 50.8MB in the beginning and 48.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:23:25,401 INFO L158 Benchmark]: IcfgBuilder took 528.05ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 32.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:23:25,402 INFO L158 Benchmark]: TraceAbstraction took 772.75ms. Allocated memory is still 73.4MB. Free memory was 32.3MB in the beginning and 34.5MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:23:25,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 54.5MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.72ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 50.8MB in the end (delta: -7.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.71ms. Allocated memory is still 73.4MB. Free memory was 50.8MB in the beginning and 48.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 528.05ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 32.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 772.75ms. Allocated memory is still 73.4MB. Free memory was 32.3MB in the beginning and 34.5MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=35651586] [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; VAL [\old(i)=35651586, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019113280146464816] [L33] RET, EXPR cast(a) VAL [a=35651586] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0] [L9] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 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 14:23:25,444 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