/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/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:21:46,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:21:46,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:21:46,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:21:46,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:21:46,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:21:46,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:21:46,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:21:46,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:21:46,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:21:46,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:21:46,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:21:46,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:21:46,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:21:46,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:21:46,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:21:46,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:21:46,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:21:46,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:21:46,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:21:46,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:21:46,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:21:46,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:21:46,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:21:46,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 15:21:46,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:21:46,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:21:46,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:21:46,759 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 15:21:46,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:21:46,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:21:46,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:21:46,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:21:46,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:21:46,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:21:46,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:21:46,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:21:46,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:21:46,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:21:46,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:21:46,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:21:46,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:21:46,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:21:46,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:21:46,783 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:21:46,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:21:46,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:21:46,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:21:46,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:21:46,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:21:46,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:21:46,786 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 15:21:47,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:21:47,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:21:47,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:21:47,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:21:47,104 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:21:47,104 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-07 15:21:47,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45412141d/7c0146125320403f95d32b134a9e588e/FLAGacb1d8cc9 [2020-07-07 15:21:47,671 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:21:47,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-07 15:21:47,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45412141d/7c0146125320403f95d32b134a9e588e/FLAGacb1d8cc9 [2020-07-07 15:21:48,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45412141d/7c0146125320403f95d32b134a9e588e [2020-07-07 15:21:48,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:21:48,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:21:48,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:48,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:21:48,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:21:48,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ab632c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48, skipping insertion in model container [2020-07-07 15:21:48,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:21:48,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:21:48,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:48,225 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:21:48,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:48,255 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:21:48,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48 WrapperNode [2020-07-07 15:21:48,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:48,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:21:48,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:21:48,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:21:48,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (1/1) ... [2020-07-07 15:21:48,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:21:48,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:21:48,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:21:48,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:21:48,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (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 15:21:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:21:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:21:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:21:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:21:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:21:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:21:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:21:48,578 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:21:48,578 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 15:21:48,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:48 BoogieIcfgContainer [2020-07-07 15:21:48,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:21:48,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:21:48,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:21:48,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:21:48,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:21:48" (1/3) ... [2020-07-07 15:21:48,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f573207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:48, skipping insertion in model container [2020-07-07 15:21:48,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:48" (2/3) ... [2020-07-07 15:21:48,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f573207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:48, skipping insertion in model container [2020-07-07 15:21:48,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:48" (3/3) ... [2020-07-07 15:21:48,588 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2020-07-07 15:21:48,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:21:48,602 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-07 15:21:48,615 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-07 15:21:48,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:21:48,637 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:21:48,638 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:21:48,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:21:48,638 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:21:48,638 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:21:48,638 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:21:48,638 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:21:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-07 15:21:48,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-07 15:21:48,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:21:48,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 15:21:48,663 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:21:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:21:48,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1235461758, now seen corresponding path program 1 times [2020-07-07 15:21:48,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:21:48,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898886288] [2020-07-07 15:21:48,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:21:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:48,732 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:21:48,733 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:21:48,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:21:48 BoogieIcfgContainer [2020-07-07 15:21:48,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:21:48,756 INFO L168 Benchmark]: Toolchain (without parser) took 723.77 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 159.9 MB in the end (delta: -57.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,757 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 15:21:48,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.54 ms. Allocated memory is still 137.9 MB. Free memory was 101.8 MB in the beginning and 92.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,759 INFO L168 Benchmark]: Boogie Preprocessor took 26.61 ms. Allocated memory is still 137.9 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,760 INFO L168 Benchmark]: RCFGBuilder took 298.01 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 90.7 MB in the beginning and 170.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,761 INFO L168 Benchmark]: TraceAbstraction took 170.75 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 159.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 223.54 ms. Allocated memory is still 137.9 MB. Free memory was 101.8 MB in the beginning and 92.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.61 ms. Allocated memory is still 137.9 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 298.01 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 90.7 MB in the beginning and 170.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 170.75 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 159.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: 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 to_real at line 6, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 2 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=22occurred 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, 11 NumberOfCodeBlocks, 11 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...