/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/float-no-simp3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:21:43,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:21:43,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:21:43,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:21:43,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:21:43,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:21:43,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:21:43,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:21:43,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:21:43,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:21:43,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:21:43,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:21:43,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:21:43,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:21:43,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:21:43,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:21:43,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:21:43,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:21:43,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:21:43,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:21:43,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:21:43,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:21:43,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:21:43,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:21:43,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 15:21:43,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 15:21:43,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 15:21:43,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 15:21:43,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 15:21:43,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 15:21:43,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 15:21:43,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 15:21:43,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 15:21:43,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 15:21:43,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 15:21:43,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 15:21:43,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 15:21:43,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 15:21:43,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:21:43,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:21:43,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:21:43,569 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 15:21:43,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:21:43,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:21:43,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:21:43,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:21:43,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:21:43,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:21:43,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:21:43,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:21:43,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:21:43,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:21:43,605 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:21:43,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:21:43,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:21:43,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:21:43,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:21:43,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:21:43,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:21:43,611 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 15:21:43,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:21:43,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:21:43,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:21:43,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:21:43,909 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:21:43,910 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-07-07 15:21:43,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759d75a1d/7d16120d20794e04bb6219653b6eb09a/FLAGa132bcf1a [2020-07-07 15:21:44,509 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:21:44,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-07-07 15:21:44,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759d75a1d/7d16120d20794e04bb6219653b6eb09a/FLAGa132bcf1a [2020-07-07 15:21:44,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759d75a1d/7d16120d20794e04bb6219653b6eb09a [2020-07-07 15:21:44,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:21:44,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:21:44,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:44,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:21:44,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:21:44,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:44" (1/1) ... [2020-07-07 15:21:44,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2696a140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:44, skipping insertion in model container [2020-07-07 15:21:44,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:44" (1/1) ... [2020-07-07 15:21:44,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:21:44,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:21:45,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:45,152 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:21:45,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:45,182 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:21:45,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45 WrapperNode [2020-07-07 15:21:45,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:45,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:21:45,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:21:45,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:21:45,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (1/1) ... [2020-07-07 15:21:45,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:21:45,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:21:45,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:21:45,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:21:45,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (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 15:21:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:21:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:21:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:21:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:21:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:21:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:21:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:21:45,490 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:21:45,491 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 15:21:45,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:45 BoogieIcfgContainer [2020-07-07 15:21:45,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:21:45,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:21:45,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:21:45,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:21:45,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:21:44" (1/3) ... [2020-07-07 15:21:45,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12184792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:45, skipping insertion in model container [2020-07-07 15:21:45,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:45" (2/3) ... [2020-07-07 15:21:45,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12184792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:45, skipping insertion in model container [2020-07-07 15:21:45,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:45" (3/3) ... [2020-07-07 15:21:45,501 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-07-07 15:21:45,510 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:21:45,516 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 15:21:45,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 15:21:45,550 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:21:45,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:21:45,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:21:45,551 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:21:45,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:21:45,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:21:45,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:21:45,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:21:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-07 15:21:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-07 15:21:45,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:21:45,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 15:21:45,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:21:45,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:21:45,579 INFO L82 PathProgramCache]: Analyzing trace with hash -961212715, now seen corresponding path program 1 times [2020-07-07 15:21:45,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:21:45,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543203572] [2020-07-07 15:21:45,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:21:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:45,631 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:21:45,631 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:21:45,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:21:45 BoogieIcfgContainer [2020-07-07 15:21:45,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:21:45,648 INFO L168 Benchmark]: Toolchain (without parser) took 694.59 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 103.0 MB in the beginning and 162.5 MB in the end (delta: -59.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,650 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.92 ms. Allocated memory is still 138.4 MB. Free memory was 102.8 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,652 INFO L168 Benchmark]: Boogie Preprocessor took 115.21 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.5 MB in the beginning and 182.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,653 INFO L168 Benchmark]: RCFGBuilder took 195.19 ms. Allocated memory is still 202.9 MB. Free memory was 182.5 MB in the beginning and 173.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,654 INFO L168 Benchmark]: TraceAbstraction took 150.38 ms. Allocated memory is still 202.9 MB. Free memory was 172.4 MB in the beginning and 163.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:45,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 225.92 ms. Allocated memory is still 138.4 MB. Free memory was 102.8 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.21 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.5 MB in the beginning and 182.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 195.19 ms. Allocated memory is still 202.9 MB. Free memory was 182.5 MB in the beginning and 173.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 150.38 ms. Allocated memory is still 202.9 MB. Free memory was 172.4 MB in the beginning and 163.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 7. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 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=13occurred 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, 8 NumberOfCodeBlocks, 8 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...