java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:58,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:58,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:58,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:26:58,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:26:58,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:26:58,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:26:58,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:26:58,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:26:58,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:26:58,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:26:58,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:26:58,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:58,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:58,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:58,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:58,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:58,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:58,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:58,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:58,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:58,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:58,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:58,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:58,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-03 21:26:58,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-03 21:26:58,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-03 21:26:58,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-03 21:26:58,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-03 21:26:58,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-03 21:26:58,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:58,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:58,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:58,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:58,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:58,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:58,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:58,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:58,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:58,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:58,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:58,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-03 21:26:58,178 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:58,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:58,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:58,180 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:58,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:58,181 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:58,181 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:58,181 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:58,181 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:58,182 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:58,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:58,184 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:58,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:58,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:58,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:58,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:58,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:58,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:58,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:58,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:58,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:58,187 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:58,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:58,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:58,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:58,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:58,188 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:58,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:58,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:58,188 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:58,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:58,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:58,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:58,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:58,267 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:58,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2019-09-03 21:26:58,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14068083/aa6bf38186194dd6a08eb5400b0bb5a2/FLAG52762f258 [2019-09-03 21:26:58,757 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:58,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2019-09-03 21:26:58,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14068083/aa6bf38186194dd6a08eb5400b0bb5a2/FLAG52762f258 [2019-09-03 21:26:59,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14068083/aa6bf38186194dd6a08eb5400b0bb5a2 [2019-09-03 21:26:59,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:59,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:59,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:59,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:59,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:59,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f83d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59, skipping insertion in model container [2019-09-03 21:26:59,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,213 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:59,229 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:59,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:59,381 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:59,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:59,410 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59 WrapperNode [2019-09-03 21:26:59,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:59,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:59,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:59,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:59,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:59,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:59,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:59,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:59,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:59" (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 [2019-09-03 21:26:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:59,782 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:59,783 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-03 21:26:59,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:59 BoogieIcfgContainer [2019-09-03 21:26:59,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:59,785 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:59,785 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:59,786 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:59,789 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:59" (1/1) ... [2019-09-03 21:26:59,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:00,074 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:00,099 INFO L272 AbstractInterpreter]: Visited 19 different actions 55 times. Merged at 7 different actions 25 times. Widened at 1 different actions 3 times. Performed 141 root evaluator evaluations with a maximum evaluation depth of 6. Performed 141 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 8 fixpoints after 3 different actions. Largest state had 11 variables. [2019-09-03 21:27:00,099 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:00,103 INFO L168 Benchmark]: Toolchain (without parser) took 904.69 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 86.6 MB in the beginning and 154.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 277.9 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,104 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.58 ms. Allocated memory is still 131.1 MB. Free memory was 86.4 MB in the beginning and 77.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,107 INFO L168 Benchmark]: Boogie Preprocessor took 130.31 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 77.0 MB in the beginning and 176.1 MB in the end (delta: -99.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,108 INFO L168 Benchmark]: RCFGBuilder took 242.35 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 164.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,109 INFO L168 Benchmark]: Abstract Interpretation took 313.82 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 154.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:00,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 213.58 ms. Allocated memory is still 131.1 MB. Free memory was 86.4 MB in the beginning and 77.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.31 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 77.0 MB in the beginning and 176.1 MB in the end (delta: -99.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.35 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 164.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 313.82 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 154.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 44]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L1] int __return_main; [L7] int __return_80; [L10] int main__n; [L11] int main__sum; [L12] int main__i; [L13] main__n = __VERIFIER_nondet_int() [L14] COND FALSE !(!(1 <= main__n)) [L20] COND FALSE !(!(main__n <= 1000)) [L26] main__sum = 0 [L27] main__i = 1 [L29] COND TRUE main__i <= main__n [L31] main__sum = main__sum + main__i [L32] main__i = main__i + 1 [L29] COND FALSE !(main__i <= main__n) [L38] int __tmp_1; [L39] __tmp_1 = (2 * main__sum) == (main__n * (main__n + 1)) [L40] int __VERIFIER_assert__cond; [L41] __VERIFIER_assert__cond = __tmp_1 [L42] COND TRUE __VERIFIER_assert__cond == 0 [L44] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...