/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:21:50,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:21:50,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:21:50,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:21:50,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:21:50,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:21:50,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:21:50,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:21:50,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:21:50,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:21:50,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:21:50,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:21:50,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:21:50,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:21:50,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:21:50,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:21:50,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:21:50,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:21:50,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:21:50,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:21:50,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:21:50,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:21:50,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:21:50,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:21:50,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 15:21:50,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 15:21:50,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 15:21:50,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 15:21:50,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 15:21:50,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 15:21:50,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 15:21:50,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 15:21:50,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 15:21:50,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 15:21:50,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 15:21:50,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 15:21:50,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 15:21:50,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 15:21:50,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:21:50,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:21:50,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:21:50,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 15:21:50,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:21:50,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:21:50,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:21:50,284 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:21:50,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:21:50,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:21:50,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:21:50,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:21:50,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:21:50,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:21:50,286 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:21:50,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:21:50,286 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:21:50,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:21:50,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:21:50,287 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:21:50,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:21:50,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:21:50,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:21:50,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:21:50,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:21:50,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:21:50,290 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation [2020-07-07 15:21:50,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:21:50,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:21:50,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:21:50,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:21:50,579 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:21:50,579 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-07-07 15:21:50,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfc9fdedd/ee12f04a6305451c81a102c90ac7bed8/FLAG3d82aa99f [2020-07-07 15:21:51,122 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:21:51,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-07-07 15:21:51,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfc9fdedd/ee12f04a6305451c81a102c90ac7bed8/FLAG3d82aa99f [2020-07-07 15:21:51,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfc9fdedd/ee12f04a6305451c81a102c90ac7bed8 [2020-07-07 15:21:51,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:21:51,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:21:51,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:51,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:21:51,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:21:51,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4520ba58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51, skipping insertion in model container [2020-07-07 15:21:51,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:21:51,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:21:51,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:51,735 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:21:51,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:51,773 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:21:51,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51 WrapperNode [2020-07-07 15:21:51,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:51,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:21:51,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:21:51,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:21:51,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... [2020-07-07 15:21:51,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:21:51,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:21:51,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:21:51,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:21:51,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:21:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:21:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:21:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:21:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 15:21:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:21:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-07 15:21:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:21:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:21:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:21:52,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:21:52,298 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 15:21:52,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:52 BoogieIcfgContainer [2020-07-07 15:21:52,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:21:52,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:21:52,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:21:52,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:21:52,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:21:51" (1/3) ... [2020-07-07 15:21:52,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4572e915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:52, skipping insertion in model container [2020-07-07 15:21:52,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:51" (2/3) ... [2020-07-07 15:21:52,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4572e915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:52, skipping insertion in model container [2020-07-07 15:21:52,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:52" (3/3) ... [2020-07-07 15:21:52,313 INFO L109 eAbstractionObserver]: Analyzing ICFG float6.c [2020-07-07 15:21:52,324 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:21:52,331 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-07-07 15:21:52,345 INFO L251 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-07-07 15:21:52,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:21:52,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:21:52,368 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:21:52,369 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:21:52,369 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:21:52,369 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:21:52,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:21:52,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:21:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-07-07 15:21:52,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-07 15:21:52,409 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:21:52,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-07 15:21:52,411 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr30ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr35ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr32ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr33ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr29ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr31ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr34ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:21:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:21:52,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1010211507, now seen corresponding path program 1 times [2020-07-07 15:21:52,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:21:52,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453651059] [2020-07-07 15:21:52,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:21:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:52,460 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:21:52,460 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:21:52,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:21:52 BoogieIcfgContainer [2020-07-07 15:21:52,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:21:52,481 INFO L168 Benchmark]: Toolchain (without parser) took 964.24 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 146.5 MB in the end (delta: -42.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:52,482 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 15:21:52,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.13 ms. Allocated memory is still 140.0 MB. Free memory was 103.4 MB in the beginning and 92.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:52,484 INFO L168 Benchmark]: Boogie Preprocessor took 134.61 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 181.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:52,485 INFO L168 Benchmark]: RCFGBuilder took 395.55 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 156.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:52,486 INFO L168 Benchmark]: TraceAbstraction took 172.58 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 146.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:52,491 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.13 ms. Allocated memory is still 140.0 MB. Free memory was 103.4 MB in the beginning and 92.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.61 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 181.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.55 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 156.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 172.58 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 146.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 7. Possible FailurePath: [L7] COND TRUE !(1.0!=2.0) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 122 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...