./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_2+soft_float_1-2a.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/combinations/square_2+soft_float_1-2a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_2+soft_float_1-2a.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 14:16:11,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:16:11,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:16:11,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:16:11,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:16:11,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:16:11,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:16:11,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:16:11,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:16:11,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:16:11,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:16:11,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:16:11,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:16:11,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:16:11,992 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:16:11,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:16:11,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:16:11,993 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:16:11,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:16:11,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:16:11,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:16:11,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:16:11,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:16:11,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:16:12,002 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:16:12,002 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:16:12,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:16:12,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:16:12,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:16:12,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:16:12,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:16:12,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:16:12,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:16:12,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:16:12,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:16:12,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:16:12,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:16:12,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:16:12,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:16:12,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:16:12,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:16:12,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:16:12,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:16:12,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:16:12,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:16:12,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:16:12,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:16:12,280 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:16:12,281 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:16:12,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:13,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:16:13,909 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:16:13,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:13,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb46c4d8/f1d17dcf511c4486a3653d1523dcfac3/FLAG8e5d871ad [2024-08-14 14:16:13,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb46c4d8/f1d17dcf511c4486a3653d1523dcfac3 [2024-08-14 14:16:13,934 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:16:13,934 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:16:13,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_2+soft_float_1-2a.c.cil.yml/witness.yml [2024-08-14 14:16:13,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:16:13,999 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:16:14,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:14,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:16:14,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:16:14,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:13" (1/2) ... [2024-08-14 14:16:14,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdd2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:13" (1/2) ... [2024-08-14 14:16:14,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e1aa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:13" (2/2) ... [2024-08-14 14:16:14,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdd2fd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:13" (2/2) ... [2024-08-14 14:16:14,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:16:14,228 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[1997,2010] [2024-08-14 14:16:14,235 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[2391,2404] [2024-08-14 14:16:14,309 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:14,323 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:16:14,343 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[1997,2010] [2024-08-14 14:16:14,344 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[2391,2404] [2024-08-14 14:16:14,389 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:14,412 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:16:14,416 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:14 WrapperNode [2024-08-14 14:16:14,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:14,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:16:14,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:16:14,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:16:14,433 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,433 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,445 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,462 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 14:16:14,466 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,466 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,480 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,484 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,486 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:16:14,490 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:16:14,490 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:16:14,490 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:16:14,491 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 02:16:14" (1/1) ... [2024-08-14 14:16:14,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:16:14,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:16:14,526 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 14:16:14,528 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 14:16:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:16:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:16:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:16:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:16:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:16:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:16:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:16:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:16:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:16:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:16:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:16:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:16:14,670 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:16:14,672 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:16:15,245 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-08-14 14:16:15,245 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:16:15,256 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:16:15,256 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:16:15,257 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:15 BoogieIcfgContainer [2024-08-14 14:16:15,257 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:16:15,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:16:15,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:16:15,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:16:15,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:16:13" (1/4) ... [2024-08-14 14:16:15,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec04b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:16:15, skipping insertion in model container [2024-08-14 14:16:15,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:13" (2/4) ... [2024-08-14 14:16:15,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec04b23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:15, skipping insertion in model container [2024-08-14 14:16:15,266 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 02:16:14" (3/4) ... [2024-08-14 14:16:15,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec04b23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:15, skipping insertion in model container [2024-08-14 14:16:15,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:15" (4/4) ... [2024-08-14 14:16:15,268 INFO L119 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:15,268 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:16:15,288 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:16:15,288 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:16:15,314 INFO L92 WitnessUtils]: Constructing product of automaton with 139 states and violation witness of the following lengths: [7] [2024-08-14 14:16:15,318 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 139 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 116 states have internal predecessors, (171), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-08-14 14:16:15,471 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 152 states to 18 states. [2024-08-14 14:16:15,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:16:15,499 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;@2bc01d6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:16:15,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:16:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2024-08-14 14:16:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-14 14:16:15,504 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:16:15,504 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 14:16:15,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:16:15,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:16:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1927792317, now seen corresponding path program 1 times [2024-08-14 14:16:15,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:16:15,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461002642] [2024-08-14 14:16:15,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:16:15,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:16:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:15,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:16:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:15,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:16:15,656 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:16:15,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:16:15,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:16:15,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:16:15,664 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:16:15,668 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:16:15,680 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:16:15 BoogieIcfgContainer [2024-08-14 14:16:15,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:16:15,681 INFO L158 Benchmark]: Toolchain (without parser) took 1682.42ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 109.8MB in the beginning and 156.5MB in the end (delta: -46.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,682 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 120.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:15,682 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:15,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.05ms. Allocated memory is still 155.2MB. Free memory was 109.3MB in the beginning and 93.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,683 INFO L158 Benchmark]: Boogie Preprocessor took 71.91ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,683 INFO L158 Benchmark]: IcfgBuilder took 767.57ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 58.0MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,684 INFO L158 Benchmark]: TraceAbstraction took 420.44ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 56.8MB in the beginning and 156.5MB in the end (delta: -99.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:15,686 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 120.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.05ms. Allocated memory is still 155.2MB. Free memory was 109.3MB in the beginning and 93.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.91ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 767.57ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 58.0MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 420.44ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 56.8MB in the beginning and 156.5MB in the end (delta: -99.6MB). 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L403] COND TRUE __VERIFIER_nondet_int() [L404] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) VAL [\old(cond)=1] [L34] COND FALSE !(!cond) VAL [\old(cond)=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 61]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 160 locations, 2 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: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 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 14:16:15,714 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/combinations/square_2+soft_float_1-2a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_2+soft_float_1-2a.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 14:16:17,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:16:17,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:16:17,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:16:17,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:16:18,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:16:18,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:16:18,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:16:18,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:16:18,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:16:18,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:16:18,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:16:18,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:16:18,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:16:18,014 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:16:18,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:16:18,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:16:18,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:16:18,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:16:18,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:16:18,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:16:18,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:16:18,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:16:18,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:16:18,022 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:16:18,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:16:18,022 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:16:18,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:16:18,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:16:18,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:16:18,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:16:18,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:16:18,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:16:18,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:16:18,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:16:18,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:16:18,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:16:18,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:16:18,025 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:16:18,025 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:16:18,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:16:18,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:16:18,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:16:18,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:16:18,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:16:18,028 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:16:18,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:16:18,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:16:18,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:16:18,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:16:18,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:16:18,375 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:16:18,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:20,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:16:20,241 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:16:20,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:20,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77a386ab/966315b0ebca4373b62d783502394cfe/FLAG06853be34 [2024-08-14 14:16:20,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77a386ab/966315b0ebca4373b62d783502394cfe [2024-08-14 14:16:20,268 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:16:20,268 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:16:20,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_2+soft_float_1-2a.c.cil.yml/witness.yml [2024-08-14 14:16:20,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:16:20,330 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:16:20,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:20,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:16:20,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:16:20,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:20" (1/2) ... [2024-08-14 14:16:20,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7218edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:20, skipping insertion in model container [2024-08-14 14:16:20,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:20" (1/2) ... [2024-08-14 14:16:20,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49ab7460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:20, skipping insertion in model container [2024-08-14 14:16:20,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:20" (2/2) ... [2024-08-14 14:16:20,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7218edf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:20, skipping insertion in model container [2024-08-14 14:16:20,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:20" (2/2) ... [2024-08-14 14:16:20,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:16:20,577 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[1997,2010] [2024-08-14 14:16:20,585 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[2391,2404] [2024-08-14 14:16:20,653 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:20,670 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:16:20,686 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[1997,2010] [2024-08-14 14:16:20,690 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_2+soft_float_1-2a.c.cil.c[2391,2404] [2024-08-14 14:16:20,731 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:20,751 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:16:20,752 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:20 WrapperNode [2024-08-14 14:16:20,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:20,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:16:20,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:16:20,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:16:20,767 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,768 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,785 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,807 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 14:16:20,814 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,814 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,828 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,834 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,835 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:16:20,847 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:16:20,847 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:16:20,847 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:16:20,848 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 02:16:20" (1/1) ... [2024-08-14 14:16:20,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:16:20,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:16:20,895 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 14:16:20,898 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 14:16:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:16:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:16:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:16:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:16:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:16:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:16:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:16:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:16:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:16:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:16:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:16:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:16:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:16:21,081 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:16:21,084 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:16:33,731 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-08-14 14:16:33,731 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:16:33,745 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:16:33,745 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:16:33,746 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:33 BoogieIcfgContainer [2024-08-14 14:16:33,746 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:16:33,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:16:33,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:16:33,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:16:33,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:16:20" (1/4) ... [2024-08-14 14:16:33,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bbba28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:16:33, skipping insertion in model container [2024-08-14 14:16:33,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:20" (2/4) ... [2024-08-14 14:16:33,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bbba28 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:33, skipping insertion in model container [2024-08-14 14:16:33,755 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 02:16:20" (3/4) ... [2024-08-14 14:16:33,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bbba28 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:33, skipping insertion in model container [2024-08-14 14:16:33,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:33" (4/4) ... [2024-08-14 14:16:33,757 INFO L119 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_1-2a.c.cil.c [2024-08-14 14:16:33,757 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:16:33,777 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:16:33,777 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:16:33,802 INFO L92 WitnessUtils]: Constructing product of automaton with 112 states and violation witness of the following lengths: [7] [2024-08-14 14:16:33,805 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 112 states, 85 states have (on average 1.4705882352941178) internal successors, (125), 90 states have internal predecessors, (125), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-08-14 14:16:33,888 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 131 states to 18 states. [2024-08-14 14:16:33,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:16:33,910 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;@3fd3fb62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:16:33,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:16:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2024-08-14 14:16:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-14 14:16:33,916 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:16:33,916 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 14:16:33,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:16:33,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:16:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2051144719, now seen corresponding path program 1 times [2024-08-14 14:16:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:16:33,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427062710] [2024-08-14 14:16:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:16:33,945 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 14:16:33,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:16:33,949 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 14:16:33,966 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 14:17:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:17:08,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:17:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:17:17,285 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:17:17,287 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:17:17,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:17:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:17:17,317 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 14:17:17,492 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 14:17:17,497 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:17:17,502 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:17:17,515 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:17:17 BoogieIcfgContainer [2024-08-14 14:17:17,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:17:17,516 INFO L158 Benchmark]: Toolchain (without parser) took 57185.77ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 28.2MB in the beginning and 48.1MB in the end (delta: -19.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:17,516 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 44.0MB. Free memory was 24.6MB in the beginning and 24.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:17,517 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 62.9MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:17,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.72ms. Allocated memory is still 62.9MB. Free memory was 28.0MB in the beginning and 29.5MB in the end (delta: -1.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-08-14 14:17:17,517 INFO L158 Benchmark]: Boogie Preprocessor took 91.98ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 26.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:17:17,518 INFO L158 Benchmark]: IcfgBuilder took 12899.76ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 26.2MB in the beginning and 48.4MB in the end (delta: -22.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-08-14 14:17:17,520 INFO L158 Benchmark]: TraceAbstraction took 43766.16ms. Allocated memory is still 77.6MB. Free memory was 47.6MB in the beginning and 48.1MB in the end (delta: -575.1kB). Peak memory consumption was 537.3kB. Max. memory is 16.1GB. [2024-08-14 14:17:17,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 44.0MB. Free memory was 24.6MB in the beginning and 24.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 62.9MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.72ms. Allocated memory is still 62.9MB. Free memory was 28.0MB in the beginning and 29.5MB in the end (delta: -1.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.98ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 26.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 12899.76ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 26.2MB in the beginning and 48.4MB in the end (delta: -22.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * TraceAbstraction took 43766.16ms. Allocated memory is still 77.6MB. Free memory was 47.6MB in the beginning and 48.1MB in the end (delta: -575.1kB). Peak memory consumption was 537.3kB. 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: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L403] COND TRUE __VERIFIER_nondet_int() [L404] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) VAL [\old(cond)=1] [L34] COND FALSE !(!cond) VAL [\old(cond)=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) VAL [IN=0.9999083280563354] [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.398411750793457] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 61]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 133 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 43.7s, 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=18occurred 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, 34.8s 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 proved your program to be incorrect! [2024-08-14 14:17:17,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE