./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e368f9929dbba9f95a2cf9bb03ad888bdb9b2cf2face386050ade96538e7b31 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:31:10,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:31:10,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:31:10,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:31:10,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:31:10,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:31:10,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:31:10,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:31:10,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:31:10,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:31:10,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:31:10,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:31:10,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:31:10,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:31:10,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:31:10,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:31:10,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:31:10,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:31:10,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:31:10,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:31:10,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:31:10,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:31:10,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:31:10,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:31:10,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:31:10,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:31:10,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:31:10,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:31:10,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:31:10,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:31:10,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:31:10,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:31:10,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:31:10,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:31:10,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:31:10,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:31:10,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:31:10,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:31:10,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:31:10,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:31:10,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:31:10,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:31:10,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:31:10,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:31:10,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:31:10,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:31:10,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:31:10,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:31:10,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:31:10,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:31:10,927 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:31:10,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:31:10,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:31:10,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:31:10,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:31:10,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:31:10,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:31:10,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:31:10,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:31:10,930 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:31:10,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:31:10,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:31:10,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:31:10,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:31:10,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:31:10,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:31:10,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:31:10,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:31:10,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:31:10,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:31:10,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:31:10,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:31:10,936 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:31:10,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:31:10,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:31:10,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:31:10,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e368f9929dbba9f95a2cf9bb03ad888bdb9b2cf2face386050ade96538e7b31 [2021-11-20 07:31:11,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:31:11,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:31:11,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:31:11,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:31:11,289 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:31:11,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i [2021-11-20 07:31:11,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/data/0e649848f/f19af4fc49b848a597f03113e3858c3e/FLAG772f67724 [2021-11-20 07:31:11,867 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:31:11,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i [2021-11-20 07:31:11,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/data/0e649848f/f19af4fc49b848a597f03113e3858c3e/FLAG772f67724 [2021-11-20 07:31:12,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/data/0e649848f/f19af4fc49b848a597f03113e3858c3e [2021-11-20 07:31:12,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:31:12,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:31:12,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:31:12,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:31:12,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:31:12,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df84486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12, skipping insertion in model container [2021-11-20 07:31:12,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:31:12,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:31:12,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i[1086,1099] [2021-11-20 07:31:12,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:31:12,589 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:31:12,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i[1086,1099] [2021-11-20 07:31:12,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:31:12,664 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:31:12,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12 WrapperNode [2021-11-20 07:31:12,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:31:12,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:31:12,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:31:12,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:31:12,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,716 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-11-20 07:31:12,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:31:12,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:31:12,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:31:12,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:31:12,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:31:12,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:31:12,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:31:12,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:31:12,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (1/1) ... [2021-11-20 07:31:12,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:31:12,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:12,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:12,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:31:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:31:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:31:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:31:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 07:31:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 07:31:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:31:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:31:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:31:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:31:12,876 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:31:12,987 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:31:12,989 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:31:13,114 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:31:13,121 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:31:13,121 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:31:13,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:13 BoogieIcfgContainer [2021-11-20 07:31:13,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:31:13,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:31:13,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:31:13,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:31:13,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:31:12" (1/3) ... [2021-11-20 07:31:13,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ec7afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:31:13, skipping insertion in model container [2021-11-20 07:31:13,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:12" (2/3) ... [2021-11-20 07:31:13,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ec7afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:31:13, skipping insertion in model container [2021-11-20 07:31:13,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:13" (3/3) ... [2021-11-20 07:31:13,132 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_16-traces-unprot2_true.i [2021-11-20 07:31:13,137 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:31:13,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:31:13,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:31:13,138 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:31:13,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,179 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,179 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,184 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,184 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:31:13,187 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 07:31:13,268 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:31:13,278 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:31:13,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 07:31:13,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 52 transitions, 109 flow [2021-11-20 07:31:13,356 INFO L129 PetriNetUnfolder]: 1/51 cut-off events. [2021-11-20 07:31:13,356 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:31:13,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-11-20 07:31:13,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 52 transitions, 109 flow [2021-11-20 07:31:13,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 41 transitions, 85 flow [2021-11-20 07:31:13,423 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-11-20 07:31:13,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:31:13,427 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:31:13,428 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:13,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-20 07:31:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1399077460, now seen corresponding path program 1 times [2021-11-20 07:31:13,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:13,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250964564] [2021-11-20 07:31:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:13,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:13,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:13,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250964564] [2021-11-20 07:31:13,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250964564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:13,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:13,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:31:13,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271735187] [2021-11-20 07:31:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:13,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:31:13,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:13,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:31:13,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:31:13,860 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 52 [2021-11-20 07:31:13,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:13,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:31:13,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 52 [2021-11-20 07:31:13,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:31:13,996 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-11-20 07:31:13,996 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 07:31:13,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 39 events. 0/39 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-11-20 07:31:13,997 INFO L132 encePairwiseOnDemand]: 47/52 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2021-11-20 07:31:13,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 103 flow [2021-11-20 07:31:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:31:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:31:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2021-11-20 07:31:14,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-11-20 07:31:14,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 234 transitions. [2021-11-20 07:31:14,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 234 transitions. [2021-11-20 07:31:14,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:31:14,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 234 transitions. [2021-11-20 07:31:14,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:14,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:14,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:14,061 INFO L186 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 234 transitions. [2021-11-20 07:31:14,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 103 flow [2021-11-20 07:31:14,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:31:14,070 INFO L242 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-11-20 07:31:14,072 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-11-20 07:31:14,076 INFO L334 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2021-11-20 07:31:14,077 INFO L470 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2021-11-20 07:31:14,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:14,084 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-20 07:31:14,085 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-20 07:31:14,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:31:14,090 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 07:31:14,097 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 07:31:14,098 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:31:14,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:31:14 BasicIcfg [2021-11-20 07:31:14,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:31:14,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:31:14,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:31:14,130 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:31:14,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:13" (3/4) ... [2021-11-20 07:31:14,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:31:14,142 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-20 07:31:14,153 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-20 07:31:14,160 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-20 07:31:14,161 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:31:14,161 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:31:14,227 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:31:14,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:31:14,228 INFO L158 Benchmark]: Toolchain (without parser) took 2032.36ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 52.6MB in the beginning and 73.6MB in the end (delta: -21.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-20 07:31:14,229 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:14,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.16ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 60.3MB in the end (delta: -7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:31:14,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.02ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:31:14,231 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 92.3MB. Free memory was 58.5MB in the beginning and 57.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:14,232 INFO L158 Benchmark]: RCFGBuilder took 358.52ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 46.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:31:14,233 INFO L158 Benchmark]: TraceAbstraction took 989.80ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 46.3MB in the beginning and 76.4MB in the end (delta: -30.1MB). Peak memory consumption was 383.9kB. Max. memory is 16.1GB. [2021-11-20 07:31:14,234 INFO L158 Benchmark]: Witness Printer took 111.15ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 73.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:31:14,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.16ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 60.3MB in the end (delta: -7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.02ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 92.3MB. Free memory was 58.5MB in the beginning and 57.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.52ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 46.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 989.80ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 46.3MB in the beginning and 76.4MB in the end (delta: -30.1MB). Peak memory consumption was 383.9kB. Max. memory is 16.1GB. * Witness Printer took 111.15ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 73.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 57 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=0, InterpolantAutomatonStates: 6, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 07:31:14,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccac083-30ce-4bc2-ad4f-e3c82cef516a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE