./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/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/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 09:39:15,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:39:15,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:39:16,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:39:16,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:39:16,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:39:16,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:39:16,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:39:16,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:39:16,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:39:16,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:39:16,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:39:16,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:39:16,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:39:16,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:39:16,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:39:16,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:39:16,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:39:16,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:39:16,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:39:16,076 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:39:16,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:39:16,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:39:16,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:39:16,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:39:16,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:39:16,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:39:16,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:39:16,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:39:16,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:39:16,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:39:16,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:39:16,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:39:16,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:39:16,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:39:16,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:39:16,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:39:16,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:39:16,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:39:16,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:39:16,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:39:16,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:39:16,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 09:39:16,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:39:16,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:39:16,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:39:16,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:39:16,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:39:16,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:39:16,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:39:16,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:39:16,132 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:39:16,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:39:16,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:39:16,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 09:39:16,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:39:16,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:39:16,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:39:16,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:39:16,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:39:16,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:39:16,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:39:16,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:39:16,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:39:16,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:39:16,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:39:16,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:39:16,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:16,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:39:16,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:39:16,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:39:16,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 09:39:16,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 09:39:16,138 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:39:16,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:39:16,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:39:16,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-07-12 09:39:16,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:39:16,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:39:16,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:39:16,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:39:16,387 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:39:16,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:16,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edb785d6/358fe2608de24daea912187ee8e74c95/FLAG4240c29dc [2022-07-12 09:39:16,865 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:39:16,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:16,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edb785d6/358fe2608de24daea912187ee8e74c95/FLAG4240c29dc [2022-07-12 09:39:16,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edb785d6/358fe2608de24daea912187ee8e74c95 [2022-07-12 09:39:16,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:39:16,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:39:16,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:16,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:39:16,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:39:16,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:16" (1/1) ... [2022-07-12 09:39:16,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c595500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:16, skipping insertion in model container [2022-07-12 09:39:16,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:16" (1/1) ... [2022-07-12 09:39:16,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:39:16,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:39:17,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-07-12 09:39:17,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-07-12 09:39:17,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:17,168 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:39:17,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-07-12 09:39:17,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-07-12 09:39:17,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:17,219 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:39:17,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17 WrapperNode [2022-07-12 09:39:17,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:17,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:17,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:39:17,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:39:17,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,282 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-12 09:39:17,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:17,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:39:17,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:39:17,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:39:17,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:39:17,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:39:17,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:39:17,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:39:17,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (1/1) ... [2022-07-12 09:39:17,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:39:17,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 09:39:17,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 09:39:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:39:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:39:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:39:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 09:39:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:39:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:39:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:39:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:39:17,519 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:39:17,521 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:39:17,857 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:39:17,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:39:17,863 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:39:17,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:17 BoogieIcfgContainer [2022-07-12 09:39:17,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:39:17,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:39:17,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:39:17,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:39:17,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:39:16" (1/3) ... [2022-07-12 09:39:17,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528f6cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:17, skipping insertion in model container [2022-07-12 09:39:17,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:17" (2/3) ... [2022-07-12 09:39:17,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528f6cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:17, skipping insertion in model container [2022-07-12 09:39:17,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:17" (3/3) ... [2022-07-12 09:39:17,873 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:17,885 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:39:17,886 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:39:17,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:39:17,941 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b7f7a8c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26d2c613 [2022-07-12 09:39:17,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:39:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-12 09:39:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:17,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:17,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:17,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:17,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:17,956 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-12 09:39:17,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:39:17,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6248560] [2022-07-12 09:39:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:17,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:39:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:39:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:39:18,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 09:39:18,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6248560] [2022-07-12 09:39:18,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6248560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:39:18,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:39:18,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:39:18,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150003337] [2022-07-12 09:39:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:39:18,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:39:18,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 09:39:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:39:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:39:18,106 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:39:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:39:18,134 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-07-12 09:39:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:39:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-12 09:39:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:39:18,142 INFO L225 Difference]: With dead ends: 189 [2022-07-12 09:39:18,143 INFO L226 Difference]: Without dead ends: 88 [2022-07-12 09:39:18,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:39:18,148 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 09:39:18,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 09:39:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-12 09:39:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-12 09:39:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 09:39:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-07-12 09:39:18,185 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-07-12 09:39:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:39:18,185 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-07-12 09:39:18,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:39:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-07-12 09:39:18,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:18,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:18,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:18,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 09:39:18,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:18,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:18,188 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-12 09:39:18,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:39:18,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453206632] [2022-07-12 09:39:18,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:18,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:39:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:18,202 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:39:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:18,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 09:39:18,223 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:39:18,224 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:39:18,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:39:18,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 09:39:18,229 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:39:18,232 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:39:18,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:39:18 BoogieIcfgContainer [2022-07-12 09:39:18,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:39:18,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:39:18,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:39:18,249 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:39:18,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:17" (3/4) ... [2022-07-12 09:39:18,252 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 09:39:18,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:39:18,252 INFO L158 Benchmark]: Toolchain (without parser) took 1349.89ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 40.6MB in the end (delta: 45.3MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2022-07-12 09:39:18,253 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:18,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.61ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 90.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 09:39:18,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.32ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:18,254 INFO L158 Benchmark]: Boogie Preprocessor took 38.16ms. Allocated memory is still 119.5MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 09:39:18,254 INFO L158 Benchmark]: RCFGBuilder took 542.38ms. Allocated memory is still 119.5MB. Free memory was 86.1MB in the beginning and 67.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-12 09:39:18,255 INFO L158 Benchmark]: TraceAbstraction took 381.28ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 41.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-12 09:39:18,255 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 119.5MB. Free memory was 41.3MB in the beginning and 40.6MB in the end (delta: 669.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:18,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.61ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 90.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.32ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.16ms. Allocated memory is still 119.5MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 542.38ms. Allocated memory is still 119.5MB. Free memory was 86.1MB in the beginning and 67.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 381.28ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 41.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 119.5MB. Free memory was 41.3MB in the beginning and 40.6MB in the end (delta: 669.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 09:39:18,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/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/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 09:39:20,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:39:20,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:39:20,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:39:20,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:39:20,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:39:20,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:39:20,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:39:20,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:39:20,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:39:20,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:39:20,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:39:20,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:39:20,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:39:20,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:39:20,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:39:20,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:39:20,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:39:20,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:39:20,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:39:20,258 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:39:20,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:39:20,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:39:20,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:39:20,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:39:20,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:39:20,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:39:20,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:39:20,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:39:20,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:39:20,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:39:20,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:39:20,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:39:20,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:39:20,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:39:20,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:39:20,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:39:20,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:39:20,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:39:20,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:39:20,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:39:20,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:39:20,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 09:39:20,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:39:20,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:39:20,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:39:20,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:39:20,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:39:20,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:39:20,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:39:20,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:39:20,321 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:39:20,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:39:20,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:39:20,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:39:20,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:39:20,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:39:20,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:39:20,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:39:20,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 09:39:20,323 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 09:39:20,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 09:39:20,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:39:20,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:39:20,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:39:20,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:39:20,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:39:20,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:39:20,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:39:20,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:20,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:39:20,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:39:20,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:39:20,326 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 09:39:20,326 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 09:39:20,326 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:39:20,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:39:20,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:39:20,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 09:39:20,327 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-07-12 09:39:20,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:39:20,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:39:20,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:39:20,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:39:20,639 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:39:20,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:20,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327e72729/13ab6d41085a4e619a118b929d29988d/FLAG7cc837a61 [2022-07-12 09:39:21,164 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:39:21,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:21,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327e72729/13ab6d41085a4e619a118b929d29988d/FLAG7cc837a61 [2022-07-12 09:39:21,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327e72729/13ab6d41085a4e619a118b929d29988d [2022-07-12 09:39:21,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:39:21,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:39:21,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:21,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:39:21,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:39:21,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da07416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21, skipping insertion in model container [2022-07-12 09:39:21,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:39:21,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:39:21,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-07-12 09:39:21,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-07-12 09:39:21,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:21,792 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:39:21,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-07-12 09:39:21,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-07-12 09:39:21,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:21,845 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:39:21,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21 WrapperNode [2022-07-12 09:39:21,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:21,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:21,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:39:21,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:39:21,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,881 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-12 09:39:21,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:21,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:39:21,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:39:21,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:39:21,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:39:21,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:39:21,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:39:21,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:39:21,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (1/1) ... [2022-07-12 09:39:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:21,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:39:21,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 09:39:21,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 09:39:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:39:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 09:39:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:39:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:39:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:39:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:39:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:39:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:39:22,057 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:39:22,059 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:39:24,611 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:39:24,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:39:24,620 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:39:24,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:24 BoogieIcfgContainer [2022-07-12 09:39:24,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:39:24,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:39:24,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:39:24,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:39:24,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:39:21" (1/3) ... [2022-07-12 09:39:24,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2a4b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:24, skipping insertion in model container [2022-07-12 09:39:24,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:21" (2/3) ... [2022-07-12 09:39:24,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2a4b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:24, skipping insertion in model container [2022-07-12 09:39:24,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:24" (3/3) ... [2022-07-12 09:39:24,633 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-07-12 09:39:24,646 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:39:24,646 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:39:24,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:39:24,700 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a68da, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b24be9a [2022-07-12 09:39:24,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:39:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-12 09:39:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:24,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:24,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:24,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:24,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:24,718 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-12 09:39:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:39:24,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696549408] [2022-07-12 09:39:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:24,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:39:24,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:39:24,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 09:39:24,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 09:39:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:39:25,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 09:39:25,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 09:39:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:39:25,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 09:39:25,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 09:39:25,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696549408] [2022-07-12 09:39:25,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696549408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:39:25,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:39:25,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:39:25,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530576759] [2022-07-12 09:39:25,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:39:25,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:39:25,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 09:39:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:39:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:39:25,158 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:39:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:39:25,179 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-07-12 09:39:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:39:25,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-12 09:39:25,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:39:25,188 INFO L225 Difference]: With dead ends: 117 [2022-07-12 09:39:25,188 INFO L226 Difference]: Without dead ends: 52 [2022-07-12 09:39:25,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:39:25,196 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 09:39:25,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 09:39:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-12 09:39:25,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-12 09:39:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 09:39:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-12 09:39:25,226 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-07-12 09:39:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:39:25,227 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-12 09:39:25,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:39:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-12 09:39:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:25,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:25,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:25,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 09:39:25,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:39:25,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:25,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-12 09:39:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:39:25,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302771490] [2022-07-12 09:39:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:25,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:39:25,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:39:25,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 09:39:25,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 09:39:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:46,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:40:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:40:08,432 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 09:40:08,432 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:40:08,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:40:08,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:40:08,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 09:40:08,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:40:08,639 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:40:08,642 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:40:08,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:40:08 BoogieIcfgContainer [2022-07-12 09:40:08,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:40:08,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:40:08,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:40:08,666 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:40:08,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:24" (3/4) ... [2022-07-12 09:40:08,668 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 09:40:08,693 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 09:40:08,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:40:08,694 INFO L158 Benchmark]: Toolchain (without parser) took 47140.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.1MB in the beginning and 39.9MB in the end (delta: -2.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,694 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 40.0MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:40:08,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.23ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 38.4MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.83ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 36.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:40:08,696 INFO L158 Benchmark]: Boogie Preprocessor took 30.80ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 34.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,696 INFO L158 Benchmark]: RCFGBuilder took 2708.62ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.8MB in the beginning and 48.1MB in the end (delta: -13.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,696 INFO L158 Benchmark]: TraceAbstraction took 44040.72ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 41.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,697 INFO L158 Benchmark]: Witness Printer took 27.93ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 39.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:40:08,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 40.0MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.23ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 38.4MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.83ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 36.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.80ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 34.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2708.62ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.8MB in the beginning and 48.1MB in the end (delta: -13.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 44040.72ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 41.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 27.93ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 39.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L48] reach_error() VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 44.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 21.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-07-12 09:40:08,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE