/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_square-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:59:34,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:59:34,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:59:34,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:59:34,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:59:34,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:59:34,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:59:34,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:59:34,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:59:34,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:59:34,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:59:34,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:59:34,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:59:34,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:59:34,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:59:34,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:59:34,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:59:34,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:59:34,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:59:34,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:59:34,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:59:34,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:59:34,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:59:34,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:59:34,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:59:34,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:59:34,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:59:34,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:59:34,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:59:34,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:59:34,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:59:34,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:59:34,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:59:34,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:59:34,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:59:34,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:59:34,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:59:34,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:59:34,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:59:34,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:59:34,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:59:34,795 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 12:59:34,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:59:34,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:59:34,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:59:34,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:59:34,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:59:34,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:59:34,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:59:34,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:59:34,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:59:34,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:59:34,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:59:34,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:59:34,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:59:34,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:59:34,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:59:34,817 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:59:34,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:59:34,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:59:34,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:59:34,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:59:34,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:59:34,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:59:34,819 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:59:35,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:59:35,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:59:35,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:59:35,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:59:35,155 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:59:35,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square-2.c [2020-07-07 12:59:35,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6f8677/0a32b0bb54f54dfca7b8bbfb063237e7/FLAG0fa8d49b0 [2020-07-07 12:59:35,649 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:59:35,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-2.c [2020-07-07 12:59:35,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6f8677/0a32b0bb54f54dfca7b8bbfb063237e7/FLAG0fa8d49b0 [2020-07-07 12:59:36,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6f8677/0a32b0bb54f54dfca7b8bbfb063237e7 [2020-07-07 12:59:36,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:59:36,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:59:36,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:59:36,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:59:36,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:59:36,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de36573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36, skipping insertion in model container [2020-07-07 12:59:36,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:59:36,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:59:36,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:59:36,351 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:59:36,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:59:36,392 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:59:36,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36 WrapperNode [2020-07-07 12:59:36,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:59:36,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:59:36,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:59:36,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:59:36,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (1/1) ... [2020-07-07 12:59:36,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:59:36,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:59:36,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:59:36,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:59:36,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (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 12:59:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:59:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:59:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 12:59:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 12:59:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 12:59:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:59:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:59:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:59:36,862 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:59:36,862 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 12:59:36,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:59:36 BoogieIcfgContainer [2020-07-07 12:59:36,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:59:36,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:59:36,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:59:36,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:59:36,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:59:36" (1/3) ... [2020-07-07 12:59:36,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d006147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:59:36, skipping insertion in model container [2020-07-07 12:59:36,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:36" (2/3) ... [2020-07-07 12:59:36,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d006147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:59:36, skipping insertion in model container [2020-07-07 12:59:36,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:59:36" (3/3) ... [2020-07-07 12:59:36,888 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square-2.c [2020-07-07 12:59:36,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:59:36,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:59:36,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:59:36,941 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:59:36,942 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:59:36,942 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:59:36,942 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:59:36,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:59:36,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:59:36,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:59:36,943 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:59:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-07 12:59:36,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 12:59:36,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:59:36,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:59:36,970 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:59:36,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:59:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1148377201, now seen corresponding path program 1 times [2020-07-07 12:59:36,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:59:36,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593745225] [2020-07-07 12:59:36,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:59:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:59:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:59:37,108 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:59:37,111 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:59:37,111 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:59:37,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:59:37,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:59:37 BoogieIcfgContainer [2020-07-07 12:59:37,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:59:37,133 INFO L168 Benchmark]: Toolchain (without parser) took 1071.62 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.7 MB in the beginning and 157.1 MB in the end (delta: -52.3 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,135 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.80 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 94.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,137 INFO L168 Benchmark]: Boogie Preprocessor took 120.87 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 94.9 MB in the beginning and 183.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,138 INFO L168 Benchmark]: RCFGBuilder took 355.31 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 170.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,139 INFO L168 Benchmark]: TraceAbstraction took 257.38 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 157.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:37,143 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.80 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 94.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.87 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 94.9 MB in the beginning and 183.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.31 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 170.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257.38 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 157.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 22, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L15] float x, y, z; [L17] x = __VERIFIER_nondet_float() [L18] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L9] COND FALSE !(!cond) [L18] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L20] COND TRUE x <= -1e-20f || x >= 1e-20f [L21] y = x * x [L22] CALL __VERIFIER_assert(y != 0.f) [L11] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=30occurred 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: No data available, 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...