/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 0.1.25-72570d3 [2020-08-22 18:29:51,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:29:51,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:29:51,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:29:51,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:29:51,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:29:51,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:29:51,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:29:51,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:29:51,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:29:51,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:29:51,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:29:51,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:29:51,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:29:51,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:29:51,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:29:51,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:29:51,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:29:51,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:29:51,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:29:51,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:29:51,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:29:51,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:29:51,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:29:51,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:29:51,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:29:51,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:29:51,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:29:51,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:29:51,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:29:51,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:29:51,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:29:51,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:29:51,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:29:51,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:29:51,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:29:51,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:29:51,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:29:51,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:29:51,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:29:51,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:29:51,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:29:51,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:29:51,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:29:51,790 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:29:51,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:29:51,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:29:51,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:29:51,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:29:51,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:29:51,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:29:51,791 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:29:52,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:29:52,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:29:52,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:29:52,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:29:52,070 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:29:52,071 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square-2.c [2020-08-22 18:29:52,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc72168b1/4b752f707ca04b8da9bf46a8c4cd7182/FLAG0e74aa407 [2020-08-22 18:29:52,532 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:29:52,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-2.c [2020-08-22 18:29:52,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc72168b1/4b752f707ca04b8da9bf46a8c4cd7182/FLAG0e74aa407 [2020-08-22 18:29:52,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc72168b1/4b752f707ca04b8da9bf46a8c4cd7182 [2020-08-22 18:29:52,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:29:52,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:29:52,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:29:52,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:29:52,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:29:52,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:29:52" (1/1) ... [2020-08-22 18:29:52,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573cf94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:52, skipping insertion in model container [2020-08-22 18:29:52,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:29:52" (1/1) ... [2020-08-22 18:29:52,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:29:53,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:29:53,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:29:53,251 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:29:53,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:29:53,282 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:29:53,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53 WrapperNode [2020-08-22 18:29:53,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:29:53,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:29:53,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:29:53,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:29:53,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (1/1) ... [2020-08-22 18:29:53,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:29:53,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:29:53,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:29:53,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:29:53,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (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 [2020-08-22 18:29:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:29:53,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:29:53,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 18:29:53,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 18:29:53,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:29:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:29:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-08-22 18:29:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 18:29:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 18:29:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 18:29:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:29:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:29:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:29:53,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:29:53,644 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 18:29:53,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:29:53 BoogieIcfgContainer [2020-08-22 18:29:53,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:29:53,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:29:53,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:29:53,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:29:53,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:29:52" (1/3) ... [2020-08-22 18:29:53,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b31fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:29:53, skipping insertion in model container [2020-08-22 18:29:53,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:29:53" (2/3) ... [2020-08-22 18:29:53,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b31fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:29:53, skipping insertion in model container [2020-08-22 18:29:53,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:29:53" (3/3) ... [2020-08-22 18:29:53,655 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square-2.c [2020-08-22 18:29:53,666 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:29:53,675 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:29:53,713 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:29:53,748 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:29:53,748 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:29:53,748 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:29:53,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:29:53,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:29:53,749 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:29:53,749 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:29:53,750 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:29:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-08-22 18:29:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 18:29:53,777 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:29:53,778 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] [2020-08-22 18:29:53,778 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:29:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:29:53,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1148377201, now seen corresponding path program 1 times [2020-08-22 18:29:53,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:29:53,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061472953] [2020-08-22 18:29:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:29:53,838 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:29:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:29:53,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:29:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:29:53,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:29:53,912 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:29:53,912 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:29:53,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:29:53,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:29:53 BoogieIcfgContainer [2020-08-22 18:29:53,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:29:53,933 INFO L168 Benchmark]: Toolchain (without parser) took 958.14 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 155.4 MB in the end (delta: -53.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,934 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.77 ms. Allocated memory is still 145.8 MB. Free memory was 101.6 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,936 INFO L168 Benchmark]: Boogie Preprocessor took 113.51 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 91.8 MB in the beginning and 181.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,937 INFO L168 Benchmark]: RCFGBuilder took 250.69 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 169.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,938 INFO L168 Benchmark]: TraceAbstraction took 281.44 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 155.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:29:53,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.77 ms. Allocated memory is still 145.8 MB. Free memory was 101.6 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.51 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 91.8 MB in the beginning and 181.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 250.69 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 169.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 281.44 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 155.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 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...