./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 03fe66fa 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-03fe66f-m [2024-08-15 18:08:34,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:08:34,551 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:08:34,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:08:34,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:08:34,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:08:34,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:08:34,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:08:34,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:08:34,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:08:34,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:08:34,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:08:34,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:08:34,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:08:34,603 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:08:34,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:08:34,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:08:34,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:08:34,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:08:34,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:08:34,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:08:34,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:08:34,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:08:34,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:08:34,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:08:34,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:08:34,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:08:34,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:08:34,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:08:34,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:08:34,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:08:34,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:08:34,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:08:34,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:08:34,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:08:34,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:08:34,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:08:34,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:08:34,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:08:34,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:08:34,612 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:08:34,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:08:34,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:08:34,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:08:34,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:08:34,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:08:34,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:08:34,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:08:34,909 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:08:34,910 INFO L431 ainManager$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 [2024-08-15 18:08:36,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:08:36,668 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:08:36,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-15 18:08:36,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d76b94f/8909fc47b7ff4c0e80c4d801098fd5ae/FLAGc8160af4a [2024-08-15 18:08:36,691 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d76b94f/8909fc47b7ff4c0e80c4d801098fd5ae [2024-08-15 18:08:36,694 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:08:36,694 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:08:36,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_1+soft_float_4-2a.c.cil.yml/witness.yml [2024-08-15 18:08:36,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:08:36,758 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:08:36,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:08:36,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:08:36,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:08:36,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:08:36" (1/2) ... [2024-08-15 18:08:36,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449a777a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:36, skipping insertion in model container [2024-08-15 18:08:36,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:08:36" (1/2) ... [2024-08-15 18:08:36,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19ea1fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:36, skipping insertion in model container [2024-08-15 18:08:36,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:36" (2/2) ... [2024-08-15 18:08:36,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449a777a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:36, skipping insertion in model container [2024-08-15 18:08:36,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:36" (2/2) ... [2024-08-15 18:08:36,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:08:37,005 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] [2024-08-15 18:08:37,015 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] [2024-08-15 18:08:37,084 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:08:37,103 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:08:37,120 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] [2024-08-15 18:08:37,123 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] [2024-08-15 18:08:37,166 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:08:37,186 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:08:37,187 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37 WrapperNode [2024-08-15 18:08:37,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:08:37,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:08:37,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:08:37,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:08:37,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,235 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]. [2024-08-15 18:08:37,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:08:37,256 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:08:37,256 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:08:37,256 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:08:37,257 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (1/1) ... [2024-08-15 18:08:37,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:08:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:08:37,299 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) [2024-08-15 18:08:37,303 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 [2024-08-15 18:08:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:08:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:08:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:08:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:08:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:08:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:08:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:08:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:08:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:08:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:08:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:08:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:08:37,460 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:08:37,464 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:08:38,037 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-08-15 18:08:38,038 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:08:38,054 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:08:38,054 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:08:38,055 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:08:38 BoogieIcfgContainer [2024-08-15 18:08:38,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:08:38,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:08:38,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:08:38,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:08:38,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:08:36" (1/4) ... [2024-08-15 18:08:38,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666edbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:08:38, skipping insertion in model container [2024-08-15 18:08:38,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:36" (2/4) ... [2024-08-15 18:08:38,063 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:08:38,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666edbbc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:08:38, skipping insertion in model container [2024-08-15 18:08:38,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:37" (3/4) ... [2024-08-15 18:08:38,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666edbbc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:08:38, skipping insertion in model container [2024-08-15 18:08:38,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:08:38" (4/4) ... [2024-08-15 18:08:38,069 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2024-08-15 18:08:38,087 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:08:38,087 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:08:38,116 INFO L90 WitnessUtils]: Constructing product of automaton with 118 states and violation witness of the following lengths: [7] [2024-08-15 18:08:38,203 INFO L95 WitnessUtils]: Product has 131 reachable states. [2024-08-15 18:08:38,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:08:38,233 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;@4fec87fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:08:38,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:08:38,236 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 168 transitions. [2024-08-15 18:08:38,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-15 18:08:38,242 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:08:38,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:08:38,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:08:38,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:08:38,249 INFO L85 PathProgramCache]: Analyzing trace with hash -924088385, now seen corresponding path program 1 times [2024-08-15 18:08:38,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:08:38,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493195560] [2024-08-15 18:08:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:08:38,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:08:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:08:38,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:08:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:08:38,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:08:38,399 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:08:38,401 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:08:38,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:08:38,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:08:38,408 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:08:38,412 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:08:38,430 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:08:38 BoogieIcfgContainer [2024-08-15 18:08:38,430 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:08:38,431 INFO L158 Benchmark]: Toolchain (without parser) took 1672.64ms. Allocated memory is still 182.5MB. Free memory was 110.1MB in the beginning and 106.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-08-15 18:08:38,431 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:08:38,431 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:08:38,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.02ms. Allocated memory is still 182.5MB. Free memory was 109.8MB in the beginning and 94.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:08:38,433 INFO L158 Benchmark]: Boogie Preprocessor took 66.63ms. Allocated memory is still 182.5MB. Free memory was 94.6MB in the beginning and 92.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:08:38,434 INFO L158 Benchmark]: IcfgBuilder took 799.23ms. Allocated memory is still 182.5MB. Free memory was 91.7MB in the beginning and 134.2MB in the end (delta: -42.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-08-15 18:08:38,434 INFO L158 Benchmark]: TraceAbstraction took 372.32ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 106.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-08-15 18:08:38,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.02ms. Allocated memory is still 182.5MB. Free memory was 109.8MB in the beginning and 94.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.63ms. Allocated memory is still 182.5MB. Free memory was 94.6MB in the beginning and 92.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 799.23ms. Allocated memory is still 182.5MB. Free memory was 91.7MB in the beginning and 134.2MB in the end (delta: -42.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 372.32ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 106.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. 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=131occurred 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 [2024-08-15 18:08:38,467 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 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-03fe66f-m [2024-08-15 18:08:40,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:08:40,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:08:40,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:08:40,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:08:40,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:08:40,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:08:40,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:08:40,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:08:40,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:08:40,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:08:40,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:08:40,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:08:40,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:08:40,908 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:08:40,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:08:40,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:08:40,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:08:40,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:08:40,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:08:40,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:08:40,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:08:40,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:08:40,913 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:08:40,913 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:08:40,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:08:40,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:08:40,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:08:40,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:08:40,915 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:08:40,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:08:40,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:08:40,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:08:40,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:08:40,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:08:40,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:08:40,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:08:40,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:08:40,918 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:08:40,918 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:08:40,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:08:40,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:08:40,919 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:08:40,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:08:40,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:08:40,920 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:08:40,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:08:41,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:08:41,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:08:41,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:08:41,303 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:08:41,304 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:08:41,306 INFO L431 ainManager$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 [2024-08-15 18:08:41,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:08:41,383 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:08:41,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-15 18:08:42,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:08:43,221 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:08:43,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_1+soft_float_4-2a.c.cil.c [2024-08-15 18:08:43,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d69ab66d8/eb478fff467748d6a59aa8dc7cfa9cff/FLAG1d2790127 [2024-08-15 18:08:43,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d69ab66d8/eb478fff467748d6a59aa8dc7cfa9cff [2024-08-15 18:08:43,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:08:43,258 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:08:43,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:08:43,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:08:43,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:08:43,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:41" (1/2) ... [2024-08-15 18:08:43,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cb6f41 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:43, skipping insertion in model container [2024-08-15 18:08:43,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:41" (1/2) ... [2024-08-15 18:08:43,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bf8d241 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:08:43, skipping insertion in model container [2024-08-15 18:08:43,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:08:43" (2/2) ... [2024-08-15 18:08:43,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cb6f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43, skipping insertion in model container [2024-08-15 18:08:43,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:08:43" (2/2) ... [2024-08-15 18:08:43,309 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:08:43,528 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] [2024-08-15 18:08:43,537 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] [2024-08-15 18:08:43,601 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:08:43,622 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:08:43,637 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] [2024-08-15 18:08:43,642 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] [2024-08-15 18:08:43,663 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:08:43,685 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:08:43,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43 WrapperNode [2024-08-15 18:08:43,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:08:43,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:08:43,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:08:43,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:08:43,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,751 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]. [2024-08-15 18:08:43,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:08:43,776 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:08:43,776 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:08:43,776 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:08:43,777 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (1/1) ... [2024-08-15 18:08:43,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:08:43,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:08:43,817 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) [2024-08-15 18:08:43,819 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 [2024-08-15 18:08:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:08:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:08:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:08:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:08:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:08:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:08:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:08:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:08:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:08:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:08:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:08:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:08:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:08:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:08:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:08:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:08:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:08:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:08:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:08:43,979 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:08:43,982 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:08:56,603 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-08-15 18:08:56,603 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:08:56,613 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:08:56,614 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:08:56,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:08:56 BoogieIcfgContainer [2024-08-15 18:08:56,614 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:08:56,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:08:56,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:08:56,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:08:56,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:08:41" (1/4) ... [2024-08-15 18:08:56,621 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:08:56,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea9d0f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:08:56, skipping insertion in model container [2024-08-15 18:08:56,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:08:43" (2/4) ... [2024-08-15 18:08:56,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea9d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:08:56, skipping insertion in model container [2024-08-15 18:08:56,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:08:43" (3/4) ... [2024-08-15 18:08:56,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea9d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:08:56, skipping insertion in model container [2024-08-15 18:08:56,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:08:56" (4/4) ... [2024-08-15 18:08:56,626 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2024-08-15 18:08:56,646 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:08:56,647 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:08:56,683 INFO L90 WitnessUtils]: Constructing product of automaton with 91 states and violation witness of the following lengths: [7] [2024-08-15 18:08:56,782 INFO L95 WitnessUtils]: Product has 110 reachable states. [2024-08-15 18:08:56,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:08:56,814 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;@30575502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:08:56,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:08:56,818 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2024-08-15 18:08:56,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-08-15 18:08:56,824 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:08:56,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:08:56,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main1Err0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:08:56,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:08:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash -800735983, now seen corresponding path program 1 times [2024-08-15 18:08:56,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:08:56,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129982600] [2024-08-15 18:08:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:08:56,847 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 [2024-08-15 18:08:56,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:08:56,851 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) [2024-08-15 18:08:56,853 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 [2024-08-15 18:09:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:09:08,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:11:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:34,486 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:11:34,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:11:34,488 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:11:34,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:11:34,525 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 [2024-08-15 18:11:34,691 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 [2024-08-15 18:11:34,694 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:11:34,698 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:11:34,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:11:34 BoogieIcfgContainer [2024-08-15 18:11:34,717 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:11:34,718 INFO L158 Benchmark]: Toolchain (without parser) took 171460.46ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 39.7MB in the beginning and 74.4MB in the end (delta: -34.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-08-15 18:11:34,718 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:34,719 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:34,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.26ms. Allocated memory is still 75.5MB. Free memory was 39.5MB in the beginning and 47.4MB in the end (delta: -7.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-08-15 18:11:34,720 INFO L158 Benchmark]: Boogie Preprocessor took 84.70ms. Allocated memory is still 75.5MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:11:34,721 INFO L158 Benchmark]: IcfgBuilder took 12838.84ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 44.5MB in the beginning and 65.7MB in the end (delta: -21.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-08-15 18:11:34,721 INFO L158 Benchmark]: TraceAbstraction took 158100.23ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 74.4MB in the end (delta: -9.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-08-15 18:11:34,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.26ms. Allocated memory is still 75.5MB. Free memory was 39.5MB in the beginning and 47.4MB in the end (delta: -7.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.70ms. Allocated memory is still 75.5MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 12838.84ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 44.5MB in the beginning and 65.7MB in the end (delta: -21.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 158100.23ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 74.4MB in the end (delta: -9.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 158.0s, 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=110occurred 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, 11.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-15 18:11:34,804 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