./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.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_1+soft_float_4-2a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.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 14:16:10,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:16:10,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:16:10,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:16:10,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:16:10,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:16:10,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:16:10,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:16:10,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:16:10,909 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:16:10,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:16:10,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:16:10,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:16:10,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:16:10,913 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:16:10,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:16:10,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:16:10,915 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:16:10,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:16:10,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:16:10,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:16:10,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:16:10,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:16:10,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:16:10,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:16:10,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:16:10,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:16:10,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:16:10,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:16:10,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:16:10,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:16:10,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:16:10,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:16:10,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:16:10,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:16:10,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:16:10,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:16:10,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:16:10,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:16:10,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:16:10,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:16:10,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:16:10,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:16:10,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:16:11,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:16:11,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:16:11,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:16:11,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:16:11,224 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:16:11,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:12,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:16:12,973 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:16:12,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:12,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d7fae10/4f528decbcae4bd4b956375089be2908/FLAG500c7b074 [2024-08-14 14:16:13,328 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d7fae10/4f528decbcae4bd4b956375089be2908 [2024-08-14 14:16:13,330 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:16:13,331 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:16:13,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.c.cil.yml/witness.yml [2024-08-14 14:16:13,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:16:13,400 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:16:13,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:13,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:16:13,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:16:13,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:13" (1/2) ... [2024-08-14 14:16:13,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94701c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:13, skipping insertion in model container [2024-08-14 14:16:13,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:13" (1/2) ... [2024-08-14 14:16:13,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bcf987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:13, skipping insertion in model container [2024-08-14 14:16:13,413 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 14:16:13,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94701c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:13, skipping insertion in model container [2024-08-14 14:16:13,414 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 14:16:13,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:16:13,612 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2024-08-14 14:16:13,619 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2024-08-14 14:16:13,662 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:13,671 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:16:13,683 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2024-08-14 14:16:13,685 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2024-08-14 14:16:13,715 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:13,736 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:16:13,738 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:13 WrapperNode [2024-08-14 14:16:13,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:13,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:16:13,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:16:13,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:16:13,754 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,754 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,764 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,784 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 14:16:13,785 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,785 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,794 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,797 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,799 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:16:13,803 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:16:13,804 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:16:13,804 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:16:13,805 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 02:16:13" (1/1) ... [2024-08-14 14:16:13,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:16:13,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:16:13,850 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 14:16:13,854 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 14:16:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:16:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:16:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:16:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:16:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:16:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:16:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:16:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:16:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:16:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:16:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:16:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:16:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:16:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:16:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:16:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:16:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:16:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:16:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:16:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:16:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:16:14,032 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:16:14,035 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:16:14,600 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-08-14 14:16:14,600 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:16:14,615 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:16:14,615 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:16:14,617 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:14 BoogieIcfgContainer [2024-08-14 14:16:14,617 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:16:14,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:16:14,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:16:14,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:16:14,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:16:13" (1/4) ... [2024-08-14 14:16:14,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3937561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,625 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 14:16:14,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3937561c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,626 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 02:16:13" (3/4) ... [2024-08-14 14:16:14,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3937561c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:14, skipping insertion in model container [2024-08-14 14:16:14,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:14" (4/4) ... [2024-08-14 14:16:14,629 INFO L119 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:14,629 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:16:14,655 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:16:14,655 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:16:14,686 INFO L92 WitnessUtils]: Constructing product of automaton with 118 states and violation witness of the following lengths: [7] [2024-08-14 14:16:14,689 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 118 states, 92 states have (on average 1.4673913043478262) internal successors, (135), 94 states have internal predecessors, (135), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-08-14 14:16:14,786 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 131 states to 18 states. [2024-08-14 14:16:14,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:16:14,819 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;@5a00671f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:16:14,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:16:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2024-08-14 14:16:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-14 14:16:14,826 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:16:14,827 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 14:16:14,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:16:14,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:16:14,834 INFO L85 PathProgramCache]: Analyzing trace with hash -924088385, now seen corresponding path program 1 times [2024-08-14 14:16:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:16:14,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54971405] [2024-08-14 14:16:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:16:14,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:16:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:14,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:16:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:15,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:16:15,005 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:16:15,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:16:15,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:16:15,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:16:15,015 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:16:15,022 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:16:15,038 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 14:16:15,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:16:15,042 INFO L158 Benchmark]: Toolchain (without parser) took 1641.35ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 96.4MB in the beginning and 135.9MB in the end (delta: -39.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,042 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory was 113.8MB in the beginning and 113.5MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:15,042 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 153.1MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:15,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.47ms. Allocated memory is still 153.1MB. Free memory was 96.0MB in the beginning and 80.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,045 INFO L158 Benchmark]: Boogie Preprocessor took 63.02ms. Allocated memory is still 153.1MB. Free memory was 80.8MB in the beginning and 77.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,045 INFO L158 Benchmark]: IcfgBuilder took 813.63ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 77.9MB in the beginning and 163.1MB in the end (delta: -85.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,046 INFO L158 Benchmark]: TraceAbstraction took 420.48ms. Allocated memory is still 203.4MB. Free memory was 162.1MB in the beginning and 135.9MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-08-14 14:16:15,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory was 113.8MB in the beginning and 113.5MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 153.1MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.47ms. Allocated memory is still 153.1MB. Free memory was 96.0MB in the beginning and 80.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.02ms. Allocated memory is still 153.1MB. Free memory was 80.8MB in the beginning and 77.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 813.63ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 77.9MB in the beginning and 163.1MB in the end (delta: -85.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 420.48ms. Allocated memory is still 203.4MB. Free memory was 162.1MB in the beginning and 135.9MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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 < 1.39f) [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, 139 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 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 14:16:15,088 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_1+soft_float_4-2a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.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 14:16:17,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:16:17,531 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:16:17,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:16:17,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:16:17,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:16:17,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:16:17,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:16:17,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:16:17,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:16:17,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:16:17,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:16:17,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:16:17,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:16:17,581 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:16:17,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:16:17,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:16:17,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:16:17,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:16:17,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:16:17,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:16:17,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:16:17,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:16:17,593 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:16:17,593 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:16:17,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:16:17,594 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:16:17,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:16:17,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:16:17,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:16:17,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:16:17,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:16:17,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:16:17,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:16:17,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:16:17,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:16:17,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:16:17,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:16:17,598 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:16:17,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:16:17,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:16:17,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:16:17,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:16:17,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:16:17,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:16:17,600 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:16:17,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:16:17,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:16:17,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:16:17,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:16:17,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:16:17,960 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:16:17,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:19,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:16:19,816 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:16:19,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:19,832 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60931918/f193b9bf6a3442acbde55e919eb697c6/FLAGd21dc6745 [2024-08-14 14:16:19,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60931918/f193b9bf6a3442acbde55e919eb697c6 [2024-08-14 14:16:19,857 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:16:19,858 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:16:19,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.c.cil.yml/witness.yml [2024-08-14 14:16:19,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:16:19,929 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:16:19,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:19,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:16:19,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:16:19,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:19" (1/2) ... [2024-08-14 14:16:19,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b64721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:19, skipping insertion in model container [2024-08-14 14:16:19,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:16:19" (1/2) ... [2024-08-14 14:16:19,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a860b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:19, skipping insertion in model container [2024-08-14 14:16:19,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:19" (2/2) ... [2024-08-14 14:16:19,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b64721 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:16:19, skipping insertion in model container [2024-08-14 14:16:19,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:19" (2/2) ... [2024-08-14 14:16:19,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:16:20,162 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2024-08-14 14:16:20,169 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2024-08-14 14:16:20,231 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:20,256 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:16:20,277 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2024-08-14 14:16:20,283 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2024-08-14 14:16:20,302 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:20,319 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:16:20,320 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 14:16:20,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:20,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:16:20,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:16:20,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:16:20,334 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 14:16:20,335 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 14:16:20,353 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 14:16:20,391 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 14:16:20,392 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 14:16:20,392 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 14:16:20,412 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 14:16:20,418 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 14:16:20,420 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 14:16:20,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:16:20,426 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:16:20,430 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:16:20,430 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:16:20,431 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 14:16:20,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:16:20,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:16:20,464 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 14:16:20,467 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 14:16:20,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:16:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:16:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:16:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:16:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:16:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:16:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:16:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:16:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:16:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:16:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:16:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:16:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:16:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:16:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:16:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:16:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:16:20,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:16:20,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:16:20,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:16:20,660 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:16:20,662 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:16:33,336 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-08-14 14:16:33,336 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:16:33,353 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:16:33,354 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:16:33,354 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 14:16:33,354 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:16:33,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:16:33,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:16:33,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:16:33,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:16:19" (1/4) ... [2024-08-14 14:16:33,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bdba82 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 14:16:33,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:16:19" (2/4) ... [2024-08-14 14:16:33,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bdba82 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 14:16:33,360 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 14:16:33,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bdba82 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 14:16:33,362 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 14:16:33,363 INFO L119 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2024-08-14 14:16:33,363 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:16:33,396 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:16:33,396 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:16:33,428 INFO L92 WitnessUtils]: Constructing product of automaton with 91 states and violation witness of the following lengths: [7] [2024-08-14 14:16:33,433 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 91 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 68 states have internal predecessors, (89), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-08-14 14:16:33,514 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 110 states to 18 states. [2024-08-14 14:16:33,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:16:33,537 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;@e130063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:16:33,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:16:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2024-08-14 14:16:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-14 14:16:33,543 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:16:33,543 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 14:16:33,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:16:33,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:16:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash -800735983, now seen corresponding path program 1 times [2024-08-14 14:16:33,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:16:33,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272808073] [2024-08-14 14:16:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:16:33,561 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 14:16:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:16:33,565 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 14:16:33,566 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 14:16:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:44,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:18:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:18:56,184 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:18:56,186 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:18:56,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:18:56,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:18:56,222 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 14:18:56,390 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 14:18:56,394 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:18:56,398 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:18:56,409 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:18:56 BoogieIcfgContainer [2024-08-14 14:18:56,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:18:56,410 INFO L158 Benchmark]: Toolchain (without parser) took 156481.19ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 30.5MB in the beginning and 46.6MB in the end (delta: -16.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-08-14 14:18:56,411 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 41.9MB. Free memory was 24.9MB in the beginning and 24.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:56,411 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 56.6MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:56,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.38ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 30.3MB in the beginning and 42.9MB in the end (delta: -12.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-08-14 14:18:56,413 INFO L158 Benchmark]: Boogie Preprocessor took 103.87ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 40.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:18:56,413 INFO L158 Benchmark]: IcfgBuilder took 12927.62ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 32.2MB in the end (delta: 7.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-08-14 14:18:56,414 INFO L158 Benchmark]: TraceAbstraction took 143053.59ms. Allocated memory is still 71.3MB. Free memory was 31.6MB in the beginning and 46.6MB in the end (delta: -14.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-08-14 14:18:56,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 41.9MB. Free memory was 24.9MB in the beginning and 24.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 56.6MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.38ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 30.3MB in the beginning and 42.9MB in the end (delta: -12.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.87ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 40.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 12927.62ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 32.2MB in the end (delta: 7.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 143053.59ms. Allocated memory is still 71.3MB. Free memory was 31.6MB in the beginning and 46.6MB in the end (delta: -14.9MB). Peak memory consumption was 3.4MB. 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: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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=0.9999998807907104] [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=1.3984375] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [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, 112 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 143.0s, 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, 11.3s 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 14:18:56,494 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