./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_1-3a.c.cil.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_1-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:18:17,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:18:17,538 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:18:17,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:18:17,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:18:17,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:18:17,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:18:17,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:18:17,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:18:17,571 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:18:17,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:18:17,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:18:17,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:18:17,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:18:17,572 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:18:17,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:18:17,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:18:17,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:18:17,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:18:17,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:18:17,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:18:17,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:18:17,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:18:17,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:18:17,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:18:17,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:18:17,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:18:17,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:18:17,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:18:17,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:18:17,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:18:17,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:18:17,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:18:17,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:18:17,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:18:17,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:18:17,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:18:17,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:18:17,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:18:17,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:18:17,581 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:18:17,581 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:18:17,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:18:17,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:18:17,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:18:17,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:18:17,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:18:17,815 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:18:17,816 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:18:17,816 INFO L431 ainManager$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_8+soft_float_1-3a.c.cil.yml/witness.yml [2024-08-14 14:18:17,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:18:17,953 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:18:17,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:19,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:18:19,357 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:18:19,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:19,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94c2ef7b/f84665b10ec64f2d88866058a176e99a/FLAG0a7c02dda [2024-08-14 14:18:19,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94c2ef7b/f84665b10ec64f2d88866058a176e99a [2024-08-14 14:18:19,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:18:19,753 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:18:19,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:18:19,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:18:19,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:18:19,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:17" (1/2) ... [2024-08-14 14:18:19,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7333fb5f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:18:19, skipping insertion in model container [2024-08-14 14:18:19,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:17" (1/2) ... [2024-08-14 14:18:19,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d8ea845 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:18:19, skipping insertion in model container [2024-08-14 14:18:19,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:18:19" (2/2) ... [2024-08-14 14:18:19,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7333fb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:19, skipping insertion in model container [2024-08-14 14:18:19,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:18:19" (2/2) ... [2024-08-14 14:18:19,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:18:19,914 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_8+soft_float_1-3a.c.cil.c[1995,2008] [2024-08-14 14:18:19,919 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_8+soft_float_1-3a.c.cil.c[2364,2377] [2024-08-14 14:18:19,956 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:18:19,964 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:18:19,977 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_8+soft_float_1-3a.c.cil.c[1995,2008] [2024-08-14 14:18:19,978 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_8+soft_float_1-3a.c.cil.c[2364,2377] [2024-08-14 14:18:20,000 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:18:20,028 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:18:20,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20 WrapperNode [2024-08-14 14:18:20,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:18:20,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:18:20,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:18:20,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:18:20,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,082 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 14:18:20,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:18:20,096 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:18:20,096 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:18:20,096 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:18:20,097 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (1/1) ... [2024-08-14 14:18:20,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:18:20,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:18:20,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:18:20,131 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 14:18:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:18:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:18:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:18:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:18:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:18:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:18:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:18:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:18:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:18:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:18:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:18:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:18:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:18:20,237 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:18:20,239 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:18:20,594 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-08-14 14:18:20,595 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:18:20,604 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:18:20,605 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:18:20,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:18:20 BoogieIcfgContainer [2024-08-14 14:18:20,605 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:18:20,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:18:20,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:18:20,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:18:20,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:17" (1/4) ... [2024-08-14 14:18:20,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c48af3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:18:20, skipping insertion in model container [2024-08-14 14:18:20,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:18:19" (2/4) ... [2024-08-14 14:18:20,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c48af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:18:20, skipping insertion in model container [2024-08-14 14:18:20,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:20" (3/4) ... [2024-08-14 14:18:20,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c48af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:18:20, skipping insertion in model container [2024-08-14 14:18:20,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:18:20" (4/4) ... [2024-08-14 14:18:20,616 INFO L119 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:20,617 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:18:20,636 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:18:20,637 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:18:20,658 INFO L92 WitnessUtils]: Constructing product of automaton with 139 states and violation witness of the following lengths: [29] [2024-08-14 14:18:20,661 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 139 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 115 states have internal predecessors, (169), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-08-14 14:18:20,995 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 1573 states to 165 states. [2024-08-14 14:18:21,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:18:21,017 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;@2e523cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:18:21,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:18:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2024-08-14 14:18:21,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-08-14 14:18:21,026 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:18:21,026 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:18:21,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:18:21,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:18:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2058129954, now seen corresponding path program 1 times [2024-08-14 14:18:21,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:18:21,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036123149] [2024-08-14 14:18:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:21,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:18:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:18:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-14 14:18:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-14 14:18:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-14 14:18:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-08-14 14:18:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-14 14:18:21,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:18:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036123149] [2024-08-14 14:18:21,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036123149] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:18:21,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:18:21,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:18:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100001274] [2024-08-14 14:18:21,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:18:21,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:18:21,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:18:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:18:21,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:18:21,445 INFO L87 Difference]: Start difference. First operand 165 states. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:18:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:18:21,496 INFO L93 Difference]: Finished difference Result 124 states and 157 transitions. [2024-08-14 14:18:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:18:21,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-08-14 14:18:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:18:21,500 INFO L225 Difference]: With dead ends: 124 [2024-08-14 14:18:21,500 INFO L226 Difference]: Without dead ends: 124 [2024-08-14 14:18:21,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:18:21,503 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 6 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:18:21,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 241 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:18:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-08-14 14:18:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2024-08-14 14:18:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.31) internal successors, (131), 102 states have internal predecessors, (131), 13 states have call successors, (13), 9 states have call predecessors, (13), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-08-14 14:18:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2024-08-14 14:18:21,536 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 68 [2024-08-14 14:18:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:18:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2024-08-14 14:18:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:18:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2024-08-14 14:18:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-08-14 14:18:21,539 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:18:21,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:18:21,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:18:21,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:18:21,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:18:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash 814328588, now seen corresponding path program 1 times [2024-08-14 14:18:21,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:18:21,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174929003] [2024-08-14 14:18:21,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:21,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:18:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:18:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-14 14:18:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-14 14:18:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-14 14:18:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-08-14 14:18:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:18:21,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:18:21,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174929003] [2024-08-14 14:18:21,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174929003] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:18:21,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:18:21,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:18:21,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248078192] [2024-08-14 14:18:21,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:18:21,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:18:21,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:18:21,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:18:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:18:21,681 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:18:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:18:21,712 INFO L93 Difference]: Finished difference Result 121 states and 153 transitions. [2024-08-14 14:18:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:18:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-08-14 14:18:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:18:21,715 INFO L225 Difference]: With dead ends: 121 [2024-08-14 14:18:21,716 INFO L226 Difference]: Without dead ends: 121 [2024-08-14 14:18:21,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:18:21,717 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:18:21,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:18:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-08-14 14:18:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-08-14 14:18:21,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.3) internal successors, (130), 102 states have internal predecessors, (130), 13 states have call successors, (13), 9 states have call predecessors, (13), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-08-14 14:18:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2024-08-14 14:18:21,728 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 69 [2024-08-14 14:18:21,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:18:21,730 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2024-08-14 14:18:21,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:18:21,730 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2024-08-14 14:18:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-08-14 14:18:21,732 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:18:21,732 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:18:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:18:21,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:18:21,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:18:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1369348339, now seen corresponding path program 1 times [2024-08-14 14:18:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:18:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762362942] [2024-08-14 14:18:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:18:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:18:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-14 14:18:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-14 14:18:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-14 14:18:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-08-14 14:18:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:18:22,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:18:22,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762362942] [2024-08-14 14:18:22,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762362942] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:18:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588658375] [2024-08-14 14:18:22,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:22,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:18:22,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:18:22,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:18:22,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:18:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:18:22,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 14:18:22,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:18:22,425 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-14 14:18:22,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:18:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:18:22,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588658375] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:18:22,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:18:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-08-14 14:18:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065005407] [2024-08-14 14:18:22,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:18:22,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-14 14:18:22,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:18:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-14 14:18:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-08-14 14:18:22,580 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:18:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:18:22,780 INFO L93 Difference]: Finished difference Result 132 states and 164 transitions. [2024-08-14 14:18:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 14:18:22,781 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 69 [2024-08-14 14:18:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:18:22,782 INFO L225 Difference]: With dead ends: 132 [2024-08-14 14:18:22,782 INFO L226 Difference]: Without dead ends: 132 [2024-08-14 14:18:22,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-08-14 14:18:22,783 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 110 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:18:22,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1157 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:18:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-08-14 14:18:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 121. [2024-08-14 14:18:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.27) internal successors, (127), 102 states have internal predecessors, (127), 13 states have call successors, (13), 9 states have call predecessors, (13), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-08-14 14:18:22,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2024-08-14 14:18:22,790 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 69 [2024-08-14 14:18:22,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:18:22,790 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2024-08-14 14:18:22,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:18:22,790 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2024-08-14 14:18:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-08-14 14:18:22,791 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:18:22,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:18:22,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:18:22,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:18:22,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:18:22,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:18:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1756245121, now seen corresponding path program 1 times [2024-08-14 14:18:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:18:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804301770] [2024-08-14 14:18:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:22,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:18:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:18:23,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:18:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:18:23,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:18:23,079 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:18:23,080 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:18:23,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:18:23,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-14 14:18:23,083 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-14 14:18:23,086 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:18:23,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:18:23 BoogieIcfgContainer [2024-08-14 14:18:23,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:18:23,113 INFO L158 Benchmark]: Toolchain (without parser) took 3359.51ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 71.7MB in the beginning and 75.3MB in the end (delta: -3.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-08-14 14:18:23,113 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 103.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:23,113 INFO L158 Benchmark]: CDTParser took 0.06ms. Allocated memory is still 146.8MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:23,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.08ms. Allocated memory is still 146.8MB. Free memory was 71.5MB in the beginning and 115.2MB in the end (delta: -43.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-08-14 14:18:23,113 INFO L158 Benchmark]: Boogie Preprocessor took 65.62ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 115.2MB in the beginning and 167.6MB in the end (delta: -52.4MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-08-14 14:18:23,113 INFO L158 Benchmark]: IcfgBuilder took 509.31ms. Allocated memory is still 197.1MB. Free memory was 167.6MB in the beginning and 134.0MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-08-14 14:18:23,114 INFO L158 Benchmark]: TraceAbstraction took 2504.81ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 75.3MB in the end (delta: 58.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-08-14 14:18:23,115 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 0.15ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 103.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.06ms. Allocated memory is still 146.8MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.08ms. Allocated memory is still 146.8MB. Free memory was 71.5MB in the beginning and 115.2MB in the end (delta: -43.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.62ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 115.2MB in the beginning and 167.6MB in the end (delta: -52.4MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * IcfgBuilder took 509.31ms. Allocated memory is still 197.1MB. Free memory was 167.6MB in the beginning and 134.0MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2504.81ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 75.3MB in the end (delta: 58.7MB). Peak memory consumption was 56.6MB. 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: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 153, overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L402] COND FALSE !(__VERIFIER_nondet_int()) [L405] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add ; [L276] unsigned int zero ; [L277] int sa ; [L278] int sb ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L283] int tmp___3 ; [L284] int tmp___4 ; [L285] int tmp___5 ; [L286] int tmp___6 ; [L287] int tmp___7 ; [L288] int tmp___8 ; [L289] int tmp___9 ; [L290] int __retres23 ; VAL [ea=127, eb=-127] [L294] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L294] RET, EXPR base2flt(0, 0) VAL [ea=127, eb=-127] [L294] zero = base2flt(0, 0) [L295] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, m=33554432] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, m=33554432] [L295] RET, EXPR base2flt(ma, ea) VAL [ea=127, eb=-127, ma=33554432, zero=0] [L295] a = base2flt(ma, ea) [L296] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127] [L119] m = m & ~ (1U << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m)=16777216] [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216] [L123] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216] [L296] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, ea=127, eb=-127, ma=33554432, mb=16777216, zero=0] [L296] b = base2flt(mb, eb) [L298] COND FALSE !(a < zero) VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, zero=0] [L301] COND TRUE a > zero [L302] tmp = 1 VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, tmp=1, zero=0] [L306] sa = tmp VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, sa=1, zero=0] [L308] COND FALSE !(b < zero) VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, sa=1, zero=0] [L311] COND TRUE b > zero [L312] tmp___0 = 1 VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, sa=1, tmp___0=1] [L316] sb = tmp___0 VAL [a=4294967295, b=16777216, ea=127, eb=-127, ma=33554432, mb=16777216, sa=1, sb=1] [L319] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=16777216] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L137] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L144] COND FALSE !(! b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127] [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=0] [L156] EXPR mb | (1U << 24U) [L156] EXPR mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216] [L156] mb = mb | (1U << 24U) [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, delta=254, ea=127, ma=16777216, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=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: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 160 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 1644 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1265 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 379 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 595 SizeOfPredicates, 2 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 96/105 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:18:23,145 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_8+soft_float_1-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_1-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:18:25,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:18:25,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:18:25,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:18:25,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:18:25,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:18:25,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:18:25,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:18:25,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:18:25,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:18:25,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:18:25,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:18:25,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:18:25,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:18:25,209 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:18:25,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:18:25,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:18:25,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:18:25,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:18:25,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:18:25,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:18:25,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:18:25,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:18:25,212 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:18:25,212 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:18:25,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:18:25,212 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:18:25,213 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:18:25,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:18:25,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:18:25,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:18:25,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:18:25,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:18:25,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:18:25,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:18:25,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:18:25,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:18:25,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:18:25,216 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:18:25,216 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:18:25,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:18:25,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:18:25,218 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:18:25,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:18:25,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:18:25,219 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:18:25,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:18:25,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:18:25,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:18:25,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:18:25,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:18:25,507 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:18:25,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:26,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:18:27,007 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:18:27,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:27,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0bc06c49/123eb2e675c84fe8a62a62c7ae95c85d/FLAG2b63b1d38 [2024-08-14 14:18:27,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0bc06c49/123eb2e675c84fe8a62a62c7ae95c85d [2024-08-14 14:18:27,416 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:18:27,419 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:18:27,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_1-3a.c.cil.yml/witness.yml [2024-08-14 14:18:27,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:18:27,482 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:18:27,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:18:27,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:18:27,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:18:27,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:18:27" (1/2) ... [2024-08-14 14:18:27,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2f63a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:27, skipping insertion in model container [2024-08-14 14:18:27,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:18:27" (1/2) ... [2024-08-14 14:18:27,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56fd0ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:18:27, skipping insertion in model container [2024-08-14 14:18:27,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:27" (2/2) ... [2024-08-14 14:18:27,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2f63a8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:18:27, skipping insertion in model container [2024-08-14 14:18:27,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:27" (2/2) ... [2024-08-14 14:18:27,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:18:27,689 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_8+soft_float_1-3a.c.cil.c[1995,2008] [2024-08-14 14:18:27,699 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_8+soft_float_1-3a.c.cil.c[2364,2377] [2024-08-14 14:18:27,739 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:18:27,749 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:18:27,759 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_8+soft_float_1-3a.c.cil.c[1995,2008] [2024-08-14 14:18:27,760 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_8+soft_float_1-3a.c.cil.c[2364,2377] [2024-08-14 14:18:27,777 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:18:27,790 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:18:27,791 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:18:27 WrapperNode [2024-08-14 14:18:27,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:18:27,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:18:27,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:18:27,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:18:27,801 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,801 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,810 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,826 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 14:18:27,827 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,827 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,835 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,837 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,838 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:18:27,842 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:18:27,842 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:18:27,842 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:18:27,843 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 02:18:27" (1/1) ... [2024-08-14 14:18:27,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:18:27,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:18:27,872 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 14:18:27,882 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 14:18:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:18:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:18:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:18:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:18:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:18:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:18:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:18:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:18:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:18:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:18:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:18:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:18:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:18:28,018 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:18:28,021 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:18:32,342 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-08-14 14:18:32,342 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:18:32,353 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:18:32,354 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:18:32,354 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:18:32 BoogieIcfgContainer [2024-08-14 14:18:32,354 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:18:32,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:18:32,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:18:32,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:18:32,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:18:27" (1/4) ... [2024-08-14 14:18:32,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2894f63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:18:32, skipping insertion in model container [2024-08-14 14:18:32,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:18:27" (2/4) ... [2024-08-14 14:18:32,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2894f63d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:18:32, skipping insertion in model container [2024-08-14 14:18:32,359 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 02:18:27" (3/4) ... [2024-08-14 14:18:32,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2894f63d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:18:32, skipping insertion in model container [2024-08-14 14:18:32,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:18:32" (4/4) ... [2024-08-14 14:18:32,360 INFO L119 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_1-3a.c.cil.c [2024-08-14 14:18:32,360 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:18:32,375 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:18:32,375 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:18:32,393 INFO L92 WitnessUtils]: Constructing product of automaton with 112 states and violation witness of the following lengths: [29] [2024-08-14 14:18:32,395 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 112 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 89 states have internal predecessors, (123), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-08-14 14:18:32,667 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 1302 states to 142 states. [2024-08-14 14:18:32,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:18:32,694 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;@33ef3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:18:32,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:18:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2024-08-14 14:18:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-08-14 14:18:32,703 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:18:32,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:18:32,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:18:32,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:18:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash 744409047, now seen corresponding path program 1 times [2024-08-14 14:18:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:18:32,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237943497] [2024-08-14 14:18:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:18:32,728 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 14:18:32,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:18:32,733 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 14:18:32,735 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 14:18:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:18:32,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:18:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:18:32,899 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:18:32,901 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:18:32,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:18:32,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:18:32,910 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 14:18:33,104 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 14:18:33,108 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:18:33,112 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:18:33,135 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:18:33 BoogieIcfgContainer [2024-08-14 14:18:33,136 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:18:33,137 INFO L158 Benchmark]: Toolchain (without parser) took 5654.54ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 46.7MB in the beginning and 53.3MB in the end (delta: -6.6MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-08-14 14:18:33,137 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 86.0MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:33,137 INFO L158 Benchmark]: Witness Parser took 3.21ms. Allocated memory is still 86.0MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:18:33,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.12ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 55.5MB in the end (delta: -9.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-08-14 14:18:33,138 INFO L158 Benchmark]: Boogie Preprocessor took 49.49ms. Allocated memory is still 86.0MB. Free memory was 55.5MB in the beginning and 52.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:18:33,138 INFO L158 Benchmark]: IcfgBuilder took 4512.58ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 52.4MB in the beginning and 86.5MB in the end (delta: -34.1MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-08-14 14:18:33,139 INFO L158 Benchmark]: TraceAbstraction took 780.15ms. Allocated memory is still 121.6MB. Free memory was 85.9MB in the beginning and 53.3MB in the end (delta: 32.6MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-08-14 14:18:33,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 86.0MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 3.21ms. Allocated memory is still 86.0MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.12ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 55.5MB in the end (delta: -9.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.49ms. Allocated memory is still 86.0MB. Free memory was 55.5MB in the beginning and 52.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 4512.58ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 52.4MB in the beginning and 86.5MB in the end (delta: -34.1MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 780.15ms. Allocated memory is still 121.6MB. Free memory was 85.9MB in the beginning and 53.3MB in the end (delta: 32.6MB). Peak memory consumption was 32.9MB. 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: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L402] COND FALSE !(__VERIFIER_nondet_int()) [L405] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add ; [L276] unsigned int zero ; [L277] int sa ; [L278] int sb ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L283] int tmp___3 ; [L284] int tmp___4 ; [L285] int tmp___5 ; [L286] int tmp___6 ; [L287] int tmp___7 ; [L288] int tmp___8 ; [L289] int tmp___9 ; [L290] int __retres23 ; [L294] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L294] RET, EXPR base2flt(0, 0) [L294] zero = base2flt(0, 0) [L295] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=-2147483648] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=-2147483648, __retres4=-1, m=-2147483648] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=-2147483648, \result=-1, m=-2147483648] [L295] RET, EXPR base2flt(ma, ea) VAL [ea=127, ma=-2147483648, zero=0] [L295] a = base2flt(ma, ea) [L296] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=-2147483648] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-2147483648] [L296] RET, EXPR base2flt(mb, eb) VAL [a=-1, ea=127, eb=0, ma=-2147483648, mb=16777216, zero=0] [L296] b = base2flt(mb, eb) [L298] COND FALSE !(a < zero) VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, zero=0] [L301] COND TRUE a > zero [L302] tmp = 1 VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, tmp=1, zero=0] [L306] sa = tmp VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, sa=1, zero=0] [L308] COND FALSE !(b < zero) VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, sa=1, zero=0] [L311] COND TRUE b > zero [L312] tmp___0 = 1 VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, sa=1, tmp___0=1] [L316] sb = tmp___0 VAL [a=-1, b=-2147483648, ea=127, eb=0, ma=-2147483648, mb=16777216, sa=1, sb=1] [L319] CALL addflt(a, b) VAL [\old(a)=-1, \old(b)=-2147483648] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L137] COND FALSE !(a < b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L144] COND FALSE !(! b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 [L156] mb = mb | (1U << 24U) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, delta=127, ea=127, ma=33554431, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=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: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 133 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred 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, 61 NumberOfCodeBlocks, 61 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 14:18:33,199 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