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/float-benchs/zonotope_loose.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:04:45,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:04:45,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:04:45,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:04:45,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:04:45,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:04:45,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:04:45,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:04:45,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:04:45,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:04:45,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:04:45,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:04:45,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:04:45,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:04:45,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:04:45,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:04:45,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:04:45,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:04:45,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:04:45,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:04:45,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:04:45,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:04:45,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:04:45,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:04:45,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:04:45,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:04:45,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:04:45,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:04:45,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:04:45,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:04:45,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:04:45,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:04:45,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:04:45,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:04:45,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:04:45,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:04:45,220 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 [2019-09-11 16:04:45,240 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:04:45,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:04:45,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:04:45,241 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:04:45,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:04:45,242 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:04:45,242 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:04:45,243 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:04:45,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:04:45,243 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:04:45,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:04:45,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:04:45,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:04:45,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:04:45,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:04:45,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:04:45,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:04:45,245 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:04:45,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:04:45,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:04:45,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:04:45,246 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:04:45,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:04:45,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:04:45,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:04:45,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:04:45,247 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:04:45,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:04:45,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:04:45,248 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:04:45,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:04:45,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:04:45,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:04:45,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:04:45,316 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:04:45,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-11 16:04:45,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c181d16f6/f12a76af5d7b405cb312d7b144d36837/FLAG4cabcec60 [2019-09-11 16:04:45,783 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:04:45,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-11 16:04:45,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c181d16f6/f12a76af5d7b405cb312d7b144d36837/FLAG4cabcec60 [2019-09-11 16:04:46,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c181d16f6/f12a76af5d7b405cb312d7b144d36837 [2019-09-11 16:04:46,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:04:46,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:04:46,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:46,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:04:46,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:04:46,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c549c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46, skipping insertion in model container [2019-09-11 16:04:46,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,231 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:04:46,248 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:04:46,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:46,425 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:04:46,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:46,637 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:04:46,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46 WrapperNode [2019-09-11 16:04:46,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:46,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:04:46,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:04:46,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:04:46,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:46,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:04:46,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:04:46,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:04:46,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:04:46,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:46" (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 [2019-09-11 16:04:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:04:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:04:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:04:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:04:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-11 16:04:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:04:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:04:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:04:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:04:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:04:46,996 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:04:46,997 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:04:46,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:46 BoogieIcfgContainer [2019-09-11 16:04:46,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:04:46,999 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:04:46,999 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:04:46,999 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:04:47,000 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:46" (1/1) ... [2019-09-11 16:04:47,029 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:04:47,111 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:04:47,121 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:04:47,162 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:04:47,180 INFO L272 AbstractInterpreter]: Visited 28 different actions 45 times. Merged at 11 different actions 13 times. Never widened. Performed 77 root evaluator evaluations with a maximum evaluation depth of 4. Performed 77 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 5 fixpoints after 3 different actions. Largest state had 12 variables. [2019-09-11 16:04:47,180 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:04:47,183 INFO L168 Benchmark]: Toolchain (without parser) took 966.57 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 95.5 MB in the beginning and 164.2 MB in the end (delta: -68.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:04:47,184 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 113.8 MB in the beginning and 113.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:04:47,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.12 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 95.2 MB in the beginning and 185.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:47,186 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 207.1 MB. Free memory was 185.9 MB in the beginning and 184.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:47,187 INFO L168 Benchmark]: RCFGBuilder took 327.51 ms. Allocated memory is still 207.1 MB. Free memory was 184.0 MB in the beginning and 172.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:47,188 INFO L168 Benchmark]: Abstract Interpretation took 181.41 ms. Allocated memory is still 207.1 MB. Free memory was 172.3 MB in the beginning and 164.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:47,192 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 147.3 MB. Free memory was 113.8 MB in the beginning and 113.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 422.12 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 95.2 MB in the beginning and 185.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 207.1 MB. Free memory was 185.9 MB in the beginning and 184.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 327.51 ms. Allocated memory is still 207.1 MB. Free memory was 184.0 MB in the beginning and 172.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 181.41 ms. Allocated memory is still 207.1 MB. Free memory was 172.3 MB in the beginning and 164.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 40]: 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_76; [L10] double main__x; [L11] double main__y; [L12] main__x = __VERIFIER_nondet_double() [L13] int main____CPAchecker_TMP_0; [L14] COND TRUE main__x >= 0.0 [L16] COND TRUE main__x <= 10.0 [L18] main____CPAchecker_TMP_0 = 1 [L19] COND TRUE main____CPAchecker_TMP_0 != 0 [L21] main__y = (main__x * main__x) - main__x [L22] COND TRUE main__y >= 0 [L24] main__y = main__x / 10.0 [L26] int main____CPAchecker_TMP_1; [L27] COND FALSE !(main__y >= 0.0) [L53] main____CPAchecker_TMP_1 = 0 [L34] int __tmp_1; [L35] __tmp_1 = main____CPAchecker_TMP_1 [L36] int __VERIFIER_assert__cond; [L37] __VERIFIER_assert__cond = __tmp_1 [L38] COND TRUE __VERIFIER_assert__cond == 0 [L40] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...