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/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:11:05,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:11:05,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:11:05,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:11:05,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:11:05,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:11:05,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:11:05,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:11:05,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:11:05,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:11:05,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:11:05,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:11:05,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:11:05,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:11:05,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:11:05,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:11:05,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:11:05,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:11:05,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:11:05,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:11:05,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:11:05,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:11:05,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:11:05,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:11:05,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:11:05,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:11:05,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:11:05,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:11:05,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:11:05,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:11:05,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:11:05,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:11:05,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:11:05,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:11:05,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:11:05,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:11:05,066 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 16:11:05,080 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:11:05,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:11:05,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:11:05,081 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:11:05,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:11:05,082 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:11:05,082 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:11:05,082 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:11:05,083 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:11:05,083 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:11:05,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:11:05,084 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:11:05,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:11:05,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:11:05,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:11:05,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:11:05,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:11:05,085 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:11:05,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:11:05,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:11:05,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:11:05,086 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:11:05,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:11:05,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:11:05,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:11:05,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:11:05,087 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:11:05,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:11:05,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:11:05,087 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:11:05,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:11:05,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:11:05,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:11:05,132 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:11:05,132 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:11:05,133 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2019-09-11 16:11:05,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899a79fca/aa6cc64416e2473d88aeb51489bcc64b/FLAG5faddaa87 [2019-09-11 16:11:05,616 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:11:05,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c [2019-09-11 16:11:05,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899a79fca/aa6cc64416e2473d88aeb51489bcc64b/FLAG5faddaa87 [2019-09-11 16:11:06,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899a79fca/aa6cc64416e2473d88aeb51489bcc64b [2019-09-11 16:11:06,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:11:06,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:11:06,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:06,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:11:06,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:11:06,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df8f01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06, skipping insertion in model container [2019-09-11 16:11:06,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,048 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:11:06,065 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:11:06,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:06,245 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:11:06,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:06,280 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:11:06,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06 WrapperNode [2019-09-11 16:11:06,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:06,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:11:06,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:11:06,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:11:06,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:11:06,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:11:06,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:11:06,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:11:06,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:06" (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 16:11:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:11:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:11:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:11:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:11:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-11 16:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-11 16:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:11:06,699 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:11:06,700 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:11:06,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:06 BoogieIcfgContainer [2019-09-11 16:11:06,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:11:06,707 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:11:06,707 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:11:06,708 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:11:06,712 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:06" (1/1) ... [2019-09-11 16:11:06,761 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:11:06,847 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:11:07,010 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:11:07,031 INFO L272 AbstractInterpreter]: Visited 25 different actions 25 times. Never merged. Never widened. Performed 29 root evaluator evaluations with a maximum evaluation depth of 10. Performed 29 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 3 fixpoints after 3 different actions. Largest state had 16 variables. [2019-09-11 16:11:07,032 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:11:07,035 INFO L168 Benchmark]: Toolchain (without parser) took 1003.46 ms. Allocated memory was 142.1 MB in the beginning and 202.4 MB in the end (delta: 60.3 MB). Free memory was 89.8 MB in the beginning and 143.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,036 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 142.1 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.59 ms. Allocated memory is still 142.1 MB. Free memory was 89.6 MB in the beginning and 80.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,039 INFO L168 Benchmark]: Boogie Preprocessor took 126.01 ms. Allocated memory was 142.1 MB in the beginning and 202.4 MB in the end (delta: 60.3 MB). Free memory was 80.2 MB in the beginning and 179.9 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,040 INFO L168 Benchmark]: RCFGBuilder took 298.63 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 168.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,041 INFO L168 Benchmark]: Abstract Interpretation took 324.69 ms. Allocated memory is still 202.4 MB. Free memory was 168.0 MB in the beginning and 143.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:07,045 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 142.1 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.59 ms. Allocated memory is still 142.1 MB. Free memory was 89.6 MB in the beginning and 80.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.01 ms. Allocated memory was 142.1 MB in the beginning and 202.4 MB in the end (delta: 60.3 MB). Free memory was 80.2 MB in the beginning and 179.9 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 298.63 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 168.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 324.69 ms. Allocated memory is still 202.4 MB. Free memory was 168.0 MB in the beginning and 143.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) [L28] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...