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/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 18:56:35,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 18:56:35,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 18:56:35,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 18:56:35,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 18:56:35,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 18:56:35,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 18:56:35,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 18:56:35,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 18:56:35,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 18:56:35,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 18:56:35,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 18:56:35,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 18:56:35,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 18:56:35,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 18:56:35,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 18:56:35,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 18:56:35,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 18:56:35,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 18:56:35,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 18:56:35,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 18:56:35,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 18:56:35,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 18:56:35,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 18:56:35,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 18:56:35,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 18:56:35,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 18:56:35,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 18:56:35,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 18:56:35,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 18:56:35,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 18:56:35,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 18:56:35,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 18:56:35,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 18:56:35,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 18:56:35,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 18:56:35,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 18:56:35,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 18:56:35,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 18:56:35,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 18:56:35,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 18:56:35,642 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 [2019-09-10 18:56:35,662 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 18:56:35,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 18:56:35,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 18:56:35,663 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 18:56:35,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 18:56:35,664 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 18:56:35,664 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 18:56:35,664 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 18:56:35,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 18:56:35,665 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 18:56:35,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 18:56:35,667 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 18:56:35,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 18:56:35,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 18:56:35,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 18:56:35,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 18:56:35,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 18:56:35,669 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 18:56:35,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 18:56:35,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 18:56:35,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 18:56:35,669 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 18:56:35,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 18:56:35,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 18:56:35,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 18:56:35,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 18:56:35,671 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 18:56:35,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 18:56:35,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 18:56:35,671 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 18:56:35,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 18:56:35,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 18:56:35,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 18:56:35,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 18:56:35,726 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 18:56:35,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-09-10 18:56:35,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/017f272bb/fe0652140eaa4563817ee874f7cc0b97/FLAG8899ea32f [2019-09-10 18:56:36,221 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 18:56:36,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-09-10 18:56:36,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/017f272bb/fe0652140eaa4563817ee874f7cc0b97/FLAG8899ea32f [2019-09-10 18:56:36,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/017f272bb/fe0652140eaa4563817ee874f7cc0b97 [2019-09-10 18:56:36,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 18:56:36,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 18:56:36,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 18:56:36,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 18:56:36,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 18:56:36,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2dd0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36, skipping insertion in model container [2019-09-10 18:56:36,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,631 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 18:56:36,647 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 18:56:36,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 18:56:36,794 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 18:56:36,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 18:56:36,835 INFO L192 MainTranslator]: Completed translation [2019-09-10 18:56:36,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36 WrapperNode [2019-09-10 18:56:36,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 18:56:36,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 18:56:36,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 18:56:36,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 18:56:36,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (1/1) ... [2019-09-10 18:56:36,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 18:56:36,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 18:56:36,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 18:56:36,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 18:56:36,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:56:36" (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 [2019-09-10 18:56:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 18:56:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 18:56:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 18:56:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2019-09-10 18:56:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2019-09-10 18:56:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 18:56:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 18:56:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 18:56:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 18:56:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2019-09-10 18:56:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2019-09-10 18:56:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 18:56:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 18:56:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 18:56:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 18:56:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 18:56:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 18:56:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 18:56:37,296 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 18:56:37,296 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-10 18:56:37,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:56:37 BoogieIcfgContainer [2019-09-10 18:56:37,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 18:56:37,299 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-10 18:56:37,299 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-10 18:56:37,299 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-10 18:56:37,300 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:56:37" (1/1) ... [2019-09-10 18:56:37,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 18:56:37,422 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 18:56:37,427 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-09-10 18:56:37,427 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-10 18:56:37,430 INFO L168 Benchmark]: Toolchain (without parser) took 812.61 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 90.8 MB in the beginning and 156.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,432 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.92 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 80.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,434 INFO L168 Benchmark]: Boogie Preprocessor took 134.11 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 80.8 MB in the beginning and 178.3 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,436 INFO L168 Benchmark]: RCFGBuilder took 327.51 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 162.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,437 INFO L168 Benchmark]: Abstract Interpretation took 128.58 ms. Allocated memory is still 202.4 MB. Free memory was 161.5 MB in the beginning and 156.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 18:56:37,443 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 218.92 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 80.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.11 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 80.8 MB in the beginning and 178.3 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 327.51 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 162.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 128.58 ms. Allocated memory is still 202.4 MB. Free memory was 161.5 MB in the beginning and 156.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...