./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer --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 e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer --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 e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:17:39,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:17:39,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:17:39,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:17:39,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:17:39,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:17:39,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:17:39,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:17:39,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:17:39,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:17:39,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:17:39,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:17:39,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:17:39,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:17:39,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:17:39,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:17:39,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:17:39,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:17:39,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:17:39,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:17:39,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:17:39,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:17:39,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:17:39,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:17:39,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:17:39,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:17:39,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:17:39,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:17:39,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:17:39,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:17:39,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:17:39,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:17:39,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:17:39,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:17:39,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:17:39,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:17:39,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:17:39,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:17:39,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:17:39,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:17:39,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:17:39,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:17:39,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:17:39,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:17:39,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:17:39,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:17:39,994 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:17:39,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:17:39,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:17:39,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:17:39,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:17:39,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:17:39,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:17:39,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:17:39,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:17:39,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:17:39,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:17:39,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:17:39,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:17:39,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:17:39,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:17:39,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:17:39,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:17:39,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:17:39,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:17:39,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:17:39,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:17:39,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:17:40,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:17:40,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:17:40,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:17:40,000 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-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 [2020-11-29 21:17:40,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:17:40,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:17:40,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:17:40,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:17:40,326 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:17:40,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/../../sv-benchmarks/c/loops/nec40.c [2020-11-29 21:17:40,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/a4b853c7c/488fb04b344d40cca2413871a0198a9b/FLAG55bf23217 [2020-11-29 21:17:40,999 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:17:40,999 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/sv-benchmarks/c/loops/nec40.c [2020-11-29 21:17:41,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/a4b853c7c/488fb04b344d40cca2413871a0198a9b/FLAG55bf23217 [2020-11-29 21:17:41,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/a4b853c7c/488fb04b344d40cca2413871a0198a9b [2020-11-29 21:17:41,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:17:41,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:17:41,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:17:41,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:17:41,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:17:41,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598d0b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41, skipping insertion in model container [2020-11-29 21:17:41,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:17:41,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:17:41,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:17:41,608 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:17:41,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:17:41,653 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:17:41,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41 WrapperNode [2020-11-29 21:17:41,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:17:41,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:17:41,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:17:41,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:17:41,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:17:41,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:17:41,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:17:41,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:17:41,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... [2020-11-29 21:17:41,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:17:41,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:17:41,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:17:41,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:17:41,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/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 [2020-11-29 21:17:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:17:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:17:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:17:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:17:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:17:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:17:42,225 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:17:42,226 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:17:42,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:17:42 BoogieIcfgContainer [2020-11-29 21:17:42,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:17:42,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:17:42,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:17:42,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:17:42,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:17:41" (1/3) ... [2020-11-29 21:17:42,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d32cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:17:42, skipping insertion in model container [2020-11-29 21:17:42,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:41" (2/3) ... [2020-11-29 21:17:42,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d32cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:17:42, skipping insertion in model container [2020-11-29 21:17:42,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:17:42" (3/3) ... [2020-11-29 21:17:42,241 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-11-29 21:17:42,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:17:42,258 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:17:42,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:17:42,313 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:17:42,314 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:17:42,314 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:17:42,314 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:17:42,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:17:42,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:17:42,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:17:42,315 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:17:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 21:17:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:17:42,338 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:42,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:42,340 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2020-11-29 21:17:42,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:17:42,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776532151] [2020-11-29 21:17:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:17:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:42,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776532151] [2020-11-29 21:17:42,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:42,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:17:42,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470031338] [2020-11-29 21:17:42,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:17:42,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:17:42,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:17:42,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:17:42,601 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-29 21:17:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:42,618 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2020-11-29 21:17:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:17:42,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 21:17:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:42,641 INFO L225 Difference]: With dead ends: 25 [2020-11-29 21:17:42,642 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 21:17:42,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:17:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 21:17:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 21:17:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 21:17:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-29 21:17:42,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-11-29 21:17:42,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:42,683 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-29 21:17:42,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:17:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-29 21:17:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:17:42,684 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:42,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:42,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:17:42,684 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:42,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:42,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2020-11-29 21:17:42,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:17:42,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163906460] [2020-11-29 21:17:42,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:17:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:42,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163906460] [2020-11-29 21:17:42,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:42,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:17:42,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466891892] [2020-11-29 21:17:42,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:17:42,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:17:42,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:17:42,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:17:42,769 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-11-29 21:17:42,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:42,809 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-29 21:17:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:17:42,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-29 21:17:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:42,811 INFO L225 Difference]: With dead ends: 18 [2020-11-29 21:17:42,811 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 21:17:42,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:17:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 21:17:42,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 21:17:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 21:17:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-29 21:17:42,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-11-29 21:17:42,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:42,816 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-29 21:17:42,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:17:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-29 21:17:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:17:42,817 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:42,817 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:42,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:17:42,818 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:42,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:42,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2020-11-29 21:17:42,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:17:42,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722837234] [2020-11-29 21:17:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:17:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:42,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722837234] [2020-11-29 21:17:42,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:42,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:17:42,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279757291] [2020-11-29 21:17:42,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:17:42,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:17:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:17:42,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:17:42,957 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-11-29 21:17:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:42,983 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-29 21:17:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:17:42,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 21:17:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:42,984 INFO L225 Difference]: With dead ends: 12 [2020-11-29 21:17:42,984 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:17:42,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:17:42,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:17:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:17:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:17:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:17:42,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-29 21:17:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:42,986 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:17:42,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:17:42,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:17:42,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:17:42,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:17:42,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:17:43,024 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:17:43,024 INFO L274 CegarLoopResult]: For program point L27(lines 27 28) no Hoare annotation was computed. [2020-11-29 21:17:43,024 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-29 21:17:43,024 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:17:43,024 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:17:43,024 INFO L277 CegarLoopResult]: At program point L30(lines 16 31) the Hoare annotation is: true [2020-11-29 21:17:43,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:17:43,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:17:43,025 INFO L274 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-11-29 21:17:43,025 INFO L277 CegarLoopResult]: At program point L26-1(lines 26 28) the Hoare annotation is: true [2020-11-29 21:17:43,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:17:43,025 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2020-11-29 21:17:43,025 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-29 21:17:43,026 INFO L274 CegarLoopResult]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2020-11-29 21:17:43,026 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-29 21:17:43,033 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-29 21:17:43,037 INFO L168 Benchmark]: Toolchain (without parser) took 1669.89 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 42.3 MB in the end (delta: 37.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:43,038 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 87.0 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:43,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.86 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 89.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:43,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:43,041 INFO L168 Benchmark]: Boogie Preprocessor took 37.09 ms. Allocated memory is still 113.2 MB. Free memory was 88.4 MB in the beginning and 87.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:43,042 INFO L168 Benchmark]: RCFGBuilder took 489.73 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 73.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:43,042 INFO L168 Benchmark]: TraceAbstraction took 803.13 ms. Allocated memory is still 113.2 MB. Free memory was 73.7 MB in the beginning and 42.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:43,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 87.0 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.86 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 89.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.09 ms. Allocated memory is still 113.2 MB. Free memory was 88.4 MB in the beginning and 87.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 489.73 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 73.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 803.13 ms. Allocated memory is still 113.2 MB. Free memory was 73.7 MB in the beginning and 42.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:17:45,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:17:45,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:17:45,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:17:45,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:17:45,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:17:45,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:17:45,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:17:45,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:17:45,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:17:45,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:17:45,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:17:45,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:17:45,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:17:45,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:17:45,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:17:45,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:17:45,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:17:45,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:17:45,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:17:45,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:17:45,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:17:45,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:17:45,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:17:45,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:17:45,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:17:45,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:17:45,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:17:45,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:17:45,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:17:45,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:17:45,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:17:45,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:17:45,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:17:45,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:17:45,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:17:45,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:17:45,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:17:45,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:17:45,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:17:45,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:17:45,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:17:45,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:17:45,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:17:45,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:17:45,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:17:45,855 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:17:45,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:17:45,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:17:45,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:17:45,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:17:45,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:17:45,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:17:45,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:17:45,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:17:45,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:17:45,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:17:45,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:17:45,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:17:45,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:17:45,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:17:45,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:17:45,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:17:45,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:17:45,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:17:45,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:17:45,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:17:45,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:17:45,861 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:17:45,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:17:45,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:17:45,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:17:45,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:17:45,862 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 [2020-11-29 21:17:46,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:17:46,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:17:46,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:17:46,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:17:46,354 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:17:46,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/../../sv-benchmarks/c/loops/nec40.c [2020-11-29 21:17:46,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/09ab6a59a/fbb8db2e752d44b1b970ee07a6508052/FLAG99071799d [2020-11-29 21:17:46,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:17:46,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/sv-benchmarks/c/loops/nec40.c [2020-11-29 21:17:46,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/09ab6a59a/fbb8db2e752d44b1b970ee07a6508052/FLAG99071799d [2020-11-29 21:17:47,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/data/09ab6a59a/fbb8db2e752d44b1b970ee07a6508052 [2020-11-29 21:17:47,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:17:47,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:17:47,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:17:47,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:17:47,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:17:47,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60875d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47, skipping insertion in model container [2020-11-29 21:17:47,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:17:47,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:17:47,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:17:47,570 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:17:47,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:17:47,623 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:17:47,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47 WrapperNode [2020-11-29 21:17:47,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:17:47,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:17:47,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:17:47,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:17:47,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:17:47,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:17:47,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:17:47,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:17:47,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... [2020-11-29 21:17:47,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:17:47,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:17:47,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:17:47,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:17:47,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/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 [2020-11-29 21:17:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-29 21:17:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:17:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:17:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:17:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-29 21:17:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:17:48,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:17:48,232 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:17:48,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:17:48 BoogieIcfgContainer [2020-11-29 21:17:48,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:17:48,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:17:48,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:17:48,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:17:48,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:17:47" (1/3) ... [2020-11-29 21:17:48,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347f7999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:17:48, skipping insertion in model container [2020-11-29 21:17:48,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:17:47" (2/3) ... [2020-11-29 21:17:48,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347f7999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:17:48, skipping insertion in model container [2020-11-29 21:17:48,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:17:48" (3/3) ... [2020-11-29 21:17:48,252 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-11-29 21:17:48,263 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:17:48,267 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:17:48,279 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:17:48,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:17:48,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:17:48,317 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:17:48,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:17:48,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:17:48,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:17:48,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:17:48,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:17:48,331 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 21:17:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:17:48,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:48,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:48,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:48,345 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2020-11-29 21:17:48,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:17:48,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401591014] [2020-11-29 21:17:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 21:17:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:48,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:17:48,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:17:48,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:48,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:17:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:48,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401591014] [2020-11-29 21:17:48,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:48,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:17:48,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101476796] [2020-11-29 21:17:48,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:17:48,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:17:48,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:17:48,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:17:48,500 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-29 21:17:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:48,511 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2020-11-29 21:17:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:17:48,513 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 21:17:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:48,520 INFO L225 Difference]: With dead ends: 25 [2020-11-29 21:17:48,521 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 21:17:48,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:17:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 21:17:48,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 21:17:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 21:17:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-29 21:17:48,551 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-11-29 21:17:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:48,551 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-29 21:17:48,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:17:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-29 21:17:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:17:48,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:48,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:48,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:17:48,768 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2020-11-29 21:17:48,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:17:48,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356400481] [2020-11-29 21:17:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 21:17:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:48,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:17:48,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:17:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:48,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:17:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:48,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356400481] [2020-11-29 21:17:48,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:48,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 21:17:48,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831227891] [2020-11-29 21:17:48,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:17:48,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:17:48,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:17:48,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:17:48,937 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2020-11-29 21:17:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:48,983 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-29 21:17:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:17:48,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-29 21:17:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:48,986 INFO L225 Difference]: With dead ends: 18 [2020-11-29 21:17:48,986 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 21:17:48,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:17:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 21:17:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 21:17:48,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 21:17:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-29 21:17:48,990 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-11-29 21:17:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:48,990 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-29 21:17:48,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:17:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-29 21:17:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:17:48,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:17:48,994 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:17:49,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:17:49,197 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:17:49,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:17:49,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2020-11-29 21:17:49,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:17:49,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514310152] [2020-11-29 21:17:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5f4a678-d3b4-49f1-812f-e8d4e08535cd/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 21:17:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:17:49,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 21:17:49,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:17:49,412 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2020-11-29 21:17:49,421 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-11-29 21:17:49,491 INFO L625 ElimStorePlain]: treesize reduction 26, result has 51.9 percent of original size [2020-11-29 21:17:49,507 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2020-11-29 21:17:49,507 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:17:49,537 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:17:49,553 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 21:17:49,554 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:32, output treesize:17 [2020-11-29 21:17:51,609 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-29 21:17:51,644 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2020-11-29 21:17:51,651 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:17:51,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:17:51,670 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 21:17:51,671 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:27, output treesize:9 [2020-11-29 21:17:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:51,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:17:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:51,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514310152] [2020-11-29 21:17:51,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:17:51,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 21:17:51,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468524744] [2020-11-29 21:17:51,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:17:51,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:17:51,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:17:51,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:17:51,748 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2020-11-29 21:17:55,850 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2020-11-29 21:17:55,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:17:55,852 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-29 21:17:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:17:55,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 21:17:55,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:17:55,852 INFO L225 Difference]: With dead ends: 12 [2020-11-29 21:17:55,852 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:17:55,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:17:55,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:17:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:17:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:17:55,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:17:55,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-29 21:17:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:17:55,854 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:17:55,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:17:55,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:17:55,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:17:56,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 21:17:56,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:17:58,151 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 21:17:58,156 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:17:58,156 INFO L274 CegarLoopResult]: For program point L27(lines 27 28) no Hoare annotation was computed. [2020-11-29 21:17:58,156 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L277 CegarLoopResult]: At program point L30(lines 16 31) the Hoare annotation is: true [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L277 CegarLoopResult]: At program point L26-1(lines 26 28) the Hoare annotation is: true [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:17:58,157 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2020-11-29 21:17:58,158 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (exists ((|~#y~0.base| (_ BitVec 32))) (and (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (not (= |~#x~0.base| |~#y~0.base|)))) (= ~i~0 (_ bv0 32))) [2020-11-29 21:17:58,158 INFO L274 CegarLoopResult]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2020-11-29 21:17:58,158 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-29 21:17:58,162 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-29 21:17:58,165 INFO L168 Benchmark]: Toolchain (without parser) took 10859.79 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 32.7 MB in the beginning and 46.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 786.6 kB. Max. memory is 16.1 GB. [2020-11-29 21:17:58,166 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:58,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.65 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 22.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:58,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.26 ms. Allocated memory is still 54.5 MB. Free memory was 22.6 MB in the beginning and 37.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:58,168 INFO L168 Benchmark]: Boogie Preprocessor took 25.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 36.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:58,168 INFO L168 Benchmark]: RCFGBuilder took 511.72 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 22.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:58,169 INFO L168 Benchmark]: TraceAbstraction took 9926.71 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 21.9 MB in the beginning and 46.0 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:58,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.65 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 22.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.26 ms. Allocated memory is still 54.5 MB. Free memory was 22.6 MB in the beginning and 37.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 36.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 511.72 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 22.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9926.71 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 21.9 MB in the beginning and 46.0 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...