./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce8a7f5b0345c6213ba7b1864c5b0de301a874d7 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: line 73833 column 342: unknown constant v_g_~p.offset_20 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-12 23:59:06,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-12 23:59:06,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-12 23:59:06,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-12 23:59:06,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-12 23:59:06,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-12 23:59:06,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-12 23:59:06,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-12 23:59:06,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-12 23:59:06,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-12 23:59:06,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-12 23:59:06,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-12 23:59:06,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-12 23:59:06,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-12 23:59:06,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-12 23:59:06,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-12 23:59:06,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-12 23:59:06,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-12 23:59:06,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-12 23:59:06,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-12 23:59:06,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-12 23:59:06,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-12 23:59:06,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-12 23:59:06,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-12 23:59:06,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-12 23:59:06,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-12 23:59:06,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-12 23:59:06,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-12 23:59:06,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-12 23:59:06,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-12 23:59:06,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-12 23:59:06,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-12 23:59:06,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-12 23:59:06,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-12 23:59:06,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-12 23:59:06,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-12 23:59:06,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-12 23:59:06,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-12 23:59:06,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-12 23:59:06,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-12 23:59:06,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-12 23:59:06,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-12 23:59:06,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-12 23:59:06,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-12 23:59:06,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-12 23:59:06,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-12 23:59:06,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-12 23:59:06,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-12 23:59:06,626 INFO L138 SettingsManager]: * Use SBE=true [2021-10-12 23:59:06,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-12 23:59:06,627 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-12 23:59:06,627 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-12 23:59:06,627 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-12 23:59:06,627 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-12 23:59:06,628 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-12 23:59:06,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-12 23:59:06,628 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-12 23:59:06,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-12 23:59:06,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-12 23:59:06,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-12 23:59:06,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-12 23:59:06,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-12 23:59:06,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-12 23:59:06,630 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-12 23:59:06,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-12 23:59:06,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-12 23:59:06,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-12 23:59:06,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-12 23:59:06,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-12 23:59:06,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-12 23:59:06,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-12 23:59:06,633 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-12 23:59:06,633 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce8a7f5b0345c6213ba7b1864c5b0de301a874d7 [2021-10-12 23:59:06,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-12 23:59:06,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-12 23:59:06,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-12 23:59:06,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-12 23:59:06,926 INFO L275 PluginConnector]: CDTParser initialized [2021-10-12 23:59:06,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2021-10-12 23:59:07,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/data/cf053e6e5/ed0cfe84f2de4cefa15882cd307a2a66/FLAG8b41980a1 [2021-10-12 23:59:07,528 INFO L306 CDTParser]: Found 1 translation units. [2021-10-12 23:59:07,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2021-10-12 23:59:07,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/data/cf053e6e5/ed0cfe84f2de4cefa15882cd307a2a66/FLAG8b41980a1 [2021-10-12 23:59:07,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/data/cf053e6e5/ed0cfe84f2de4cefa15882cd307a2a66 [2021-10-12 23:59:07,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-12 23:59:07,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-12 23:59:07,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:07,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-12 23:59:07,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-12 23:59:07,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786d174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07, skipping insertion in model container [2021-10-12 23:59:07,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-12 23:59:07,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-12 23:59:08,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:08,169 INFO L203 MainTranslator]: Completed pre-run [2021-10-12 23:59:08,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:08,201 INFO L208 MainTranslator]: Completed translation [2021-10-12 23:59:08,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08 WrapperNode [2021-10-12 23:59:08,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:08,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:08,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-12 23:59:08,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-12 23:59:08,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:08,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-12 23:59:08,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-12 23:59:08,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-12 23:59:08,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-12 23:59:08,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-12 23:59:08,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-12 23:59:08,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-12 23:59:08,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (1/1) ... [2021-10-12 23:59:08,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-12 23:59:08,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:08,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-12 23:59:08,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-12 23:59:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-12 23:59:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-12 23:59:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-12 23:59:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-12 23:59:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-12 23:59:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-12 23:59:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-12 23:59:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-12 23:59:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-12 23:59:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-12 23:59:08,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-12 23:59:08,703 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-12 23:59:08,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:08 BoogieIcfgContainer [2021-10-12 23:59:08,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-12 23:59:08,706 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-12 23:59:08,706 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-12 23:59:08,710 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-12 23:59:08,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 11:59:07" (1/3) ... [2021-10-12 23:59:08,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20d3fb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:08, skipping insertion in model container [2021-10-12 23:59:08,713 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,722 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:08" (2/3) ... [2021-10-12 23:59:08,723 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20d3fb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:08, skipping insertion in model container [2021-10-12 23:59:08,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:08" (3/3) ... [2021-10-12 23:59:08,725 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex5B.i [2021-10-12 23:59:08,805 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-12 23:59:08,805 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-12 23:59:08,806 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-12 23:59:08,806 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-12 23:59:08,806 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-12 23:59:08,806 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-12 23:59:08,806 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-12 23:59:08,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-12 23:59:08,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-12 23:59:08,840 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:08,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:08,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:08,848 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-12 23:59:08,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,849 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-12 23:59:08,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-12 23:59:08,852 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:08,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:08,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:08,854 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-12 23:59:08,854 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,860 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~nondet17, main_#t~mem18, main_#t~mem19, main_#t~short20, main_#t~mem21, main_#t~ret22.base, main_#t~ret22.offset, main_~p1~0.base, main_~p1~0.offset, main_~p2~0.base, main_~p2~0.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;havoc main_#t~malloc14.base, main_#t~malloc14.offset;call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnHeap(4);main_~p2~0.base, main_~p2~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;havoc main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(main_#t~nondet16, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet16;call write~int(main_#t~nondet17, main_~p2~0.base, main_~p2~0.offset, 4);havoc main_#t~nondet17;call main_#t~mem18 := read~int(main_~p1~0.base, main_~p1~0.offset, 4);main_#t~short20 := main_#t~mem18 < 0; 27#L76true assume !main_#t~short20;call main_#t~mem19 := read~int(main_~p2~0.base, main_~p2~0.offset, 4);main_#t~short20 := main_#t~mem19 < 0; 21#L76-2true assume !main_#t~short20;havoc main_#t~mem18;havoc main_#t~mem19;havoc main_#t~short20;call main_#t~mem21 := read~int(main_~p2~0.base, main_~p2~0.offset, 4); 20#L79true call main_#t~ret22.base, main_#t~ret22.offset := f(main_~p1~0.base, main_~p1~0.offset, main_#t~mem21);< 23#fENTRYtrue [2021-10-12 23:59:08,861 INFO L793 eck$LassoCheckResult]: Loop: 23#fENTRYtrue ~q.base, ~q.offset := #in~q.base, #in~q.offset;~v := #in~v; 26#L17true assume !(~v < 0);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4);~tmp~0.base, ~tmp~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(1 + ~v, ~tmp~0.base, ~tmp~0.offset, 4); 10#L25true call #t~ret3.base, #t~ret3.offset := g(~tmp~0.base, ~tmp~0.offset);< 24#gENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 11#L47true assume #t~mem8 < 0;havoc #t~mem8;call ULTIMATE.dealloc(~p.base, ~p.offset);call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc9.base, #t~malloc9.offset;havoc #t~malloc9.base, #t~malloc9.offset; 19#gFINALtrue assume true; 25#gEXITtrue >#53#return; 17#L25-1true call #t~ret4.base, #t~ret4.offset := f(#t~ret3.base, #t~ret3.offset, ~v - 1);< 23#fENTRYtrue [2021-10-12 23:59:08,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:08,867 INFO L82 PathProgramCache]: Analyzing trace with hash 60187955, now seen corresponding path program 1 times [2021-10-12 23:59:08,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:08,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447590578] [2021-10-12 23:59:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:08,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:08,993 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:09,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1039736561, now seen corresponding path program 1 times [2021-10-12 23:59:09,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:09,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381779788] [2021-10-12 23:59:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-12 23:59:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:09,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:09,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381779788] [2021-10-12 23:59:09,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381779788] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:09,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:09,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-12 23:59:09,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759469514] [2021-10-12 23:59:09,276 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-12 23:59:09,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-12 23:59:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-12 23:59:09,299 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-12 23:59:09,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:09,458 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-10-12 23:59:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-12 23:59:09,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2021-10-12 23:59:09,483 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:09,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 25 states and 32 transitions. [2021-10-12 23:59:09,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-12 23:59:09,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-12 23:59:09,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2021-10-12 23:59:09,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-12 23:59:09,495 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-12 23:59:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2021-10-12 23:59:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-12 23:59:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-12 23:59:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-10-12 23:59:09,533 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-12 23:59:09,533 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-12 23:59:09,533 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-12 23:59:09,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2021-10-12 23:59:09,535 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:09,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:09,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:09,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-12 23:59:09,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:09,539 INFO L791 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 82#L-1 havoc main_#res;havoc main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~nondet17, main_#t~mem18, main_#t~mem19, main_#t~short20, main_#t~mem21, main_#t~ret22.base, main_#t~ret22.offset, main_~p1~0.base, main_~p1~0.offset, main_~p2~0.base, main_~p2~0.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;havoc main_#t~malloc14.base, main_#t~malloc14.offset;call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnHeap(4);main_~p2~0.base, main_~p2~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;havoc main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(main_#t~nondet16, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet16;call write~int(main_#t~nondet17, main_~p2~0.base, main_~p2~0.offset, 4);havoc main_#t~nondet17;call main_#t~mem18 := read~int(main_~p1~0.base, main_~p1~0.offset, 4);main_#t~short20 := main_#t~mem18 < 0; 92#L76 assume !main_#t~short20;call main_#t~mem19 := read~int(main_~p2~0.base, main_~p2~0.offset, 4);main_#t~short20 := main_#t~mem19 < 0; 90#L76-2 assume !main_#t~short20;havoc main_#t~mem18;havoc main_#t~mem19;havoc main_#t~short20;call main_#t~mem21 := read~int(main_~p2~0.base, main_~p2~0.offset, 4); 75#L79 call main_#t~ret22.base, main_#t~ret22.offset := f(main_~p1~0.base, main_~p1~0.offset, main_#t~mem21);< 79#fENTRY [2021-10-12 23:59:09,540 INFO L793 eck$LassoCheckResult]: Loop: 79#fENTRY ~q.base, ~q.offset := #in~q.base, #in~q.offset;~v := #in~v; 93#L17 assume !(~v < 0);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4);~tmp~0.base, ~tmp~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(1 + ~v, ~tmp~0.base, ~tmp~0.offset, 4); 84#L25 call #t~ret3.base, #t~ret3.offset := g(~tmp~0.base, ~tmp~0.offset);< 91#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 94#L47 assume !(#t~mem8 < 0);havoc #t~mem8;call #t~mem10 := read~int(~p.base, ~p.offset, 4);#t~post11 := #t~mem10;call write~int(#t~post11 - 1, ~p.base, ~p.offset, 4);havoc #t~mem10;havoc #t~post11; 85#L55 call #t~ret12.base, #t~ret12.offset := g(~p.base, ~p.offset);< 91#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 94#L47 assume #t~mem8 < 0;havoc #t~mem8;call ULTIMATE.dealloc(~p.base, ~p.offset);call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc9.base, #t~malloc9.offset;havoc #t~malloc9.base, #t~malloc9.offset; 83#gFINAL assume true; 86#gEXIT >#59#return; 96#L55-1 ~np~0.base, ~np~0.offset := #t~ret12.base, #t~ret12.offset;havoc #t~ret12.base, #t~ret12.offset;call ULTIMATE.dealloc(~np~0.base, ~np~0.offset);call #t~malloc13.base, #t~malloc13.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc13.base, #t~malloc13.offset;havoc #t~malloc13.base, #t~malloc13.offset; 97#gFINAL assume true; 98#gEXIT >#53#return; 76#L25-1 call #t~ret4.base, #t~ret4.offset := f(#t~ret3.base, #t~ret3.offset, ~v - 1);< 79#fENTRY [2021-10-12 23:59:09,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash 60187955, now seen corresponding path program 2 times [2021-10-12 23:59:09,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:09,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424799955] [2021-10-12 23:59:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,582 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:09,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:09,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1707443993, now seen corresponding path program 1 times [2021-10-12 23:59:09,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:09,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184006458] [2021-10-12 23:59:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-12 23:59:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-12 23:59:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-12 23:59:09,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:09,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184006458] [2021-10-12 23:59:09,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184006458] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-12 23:59:09,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296479660] [2021-10-12 23:59:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:09,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-12 23:59:09,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-12 23:59:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:10,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-12 23:59:10,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-12 23:59:10,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-12 23:59:10,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-12 23:59:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:10,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296479660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-12 23:59:10,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-12 23:59:10,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2021-10-12 23:59:10,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43233776] [2021-10-12 23:59:10,960 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-12 23:59:10,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-12 23:59:10,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-12 23:59:10,964 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 10 Second operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-12 23:59:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:11,426 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-12 23:59:11,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-12 23:59:11,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2021-10-12 23:59:11,430 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:11,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2021-10-12 23:59:11,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-12 23:59:11,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-12 23:59:11,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2021-10-12 23:59:11,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-12 23:59:11,433 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-12 23:59:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2021-10-12 23:59:11,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-10-12 23:59:11,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-12 23:59:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-12 23:59:11,438 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-12 23:59:11,439 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-12 23:59:11,439 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-12 23:59:11,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-12 23:59:11,440 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-12 23:59:11,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:11,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:11,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-12 23:59:11,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:11,442 INFO L791 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 218#L-1 havoc main_#res;havoc main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~nondet17, main_#t~mem18, main_#t~mem19, main_#t~short20, main_#t~mem21, main_#t~ret22.base, main_#t~ret22.offset, main_~p1~0.base, main_~p1~0.offset, main_~p2~0.base, main_~p2~0.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;havoc main_#t~malloc14.base, main_#t~malloc14.offset;call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnHeap(4);main_~p2~0.base, main_~p2~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;havoc main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(main_#t~nondet16, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet16;call write~int(main_#t~nondet17, main_~p2~0.base, main_~p2~0.offset, 4);havoc main_#t~nondet17;call main_#t~mem18 := read~int(main_~p1~0.base, main_~p1~0.offset, 4);main_#t~short20 := main_#t~mem18 < 0; 228#L76 assume !main_#t~short20;call main_#t~mem19 := read~int(main_~p2~0.base, main_~p2~0.offset, 4);main_#t~short20 := main_#t~mem19 < 0; 226#L76-2 assume !main_#t~short20;havoc main_#t~mem18;havoc main_#t~mem19;havoc main_#t~short20;call main_#t~mem21 := read~int(main_~p2~0.base, main_~p2~0.offset, 4); 211#L79 call main_#t~ret22.base, main_#t~ret22.offset := f(main_~p1~0.base, main_~p1~0.offset, main_#t~mem21);< 215#fENTRY [2021-10-12 23:59:11,442 INFO L793 eck$LassoCheckResult]: Loop: 215#fENTRY ~q.base, ~q.offset := #in~q.base, #in~q.offset;~v := #in~v; 229#L17 assume !(~v < 0);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4);~tmp~0.base, ~tmp~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(1 + ~v, ~tmp~0.base, ~tmp~0.offset, 4); 220#L25 call #t~ret3.base, #t~ret3.offset := g(~tmp~0.base, ~tmp~0.offset);< 227#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 230#L47 assume !(#t~mem8 < 0);havoc #t~mem8;call #t~mem10 := read~int(~p.base, ~p.offset, 4);#t~post11 := #t~mem10;call write~int(#t~post11 - 1, ~p.base, ~p.offset, 4);havoc #t~mem10;havoc #t~post11; 221#L55 call #t~ret12.base, #t~ret12.offset := g(~p.base, ~p.offset);< 227#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 230#L47 assume !(#t~mem8 < 0);havoc #t~mem8;call #t~mem10 := read~int(~p.base, ~p.offset, 4);#t~post11 := #t~mem10;call write~int(#t~post11 - 1, ~p.base, ~p.offset, 4);havoc #t~mem10;havoc #t~post11; 221#L55 call #t~ret12.base, #t~ret12.offset := g(~p.base, ~p.offset);< 227#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 230#L47 assume #t~mem8 < 0;havoc #t~mem8;call ULTIMATE.dealloc(~p.base, ~p.offset);call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc9.base, #t~malloc9.offset;havoc #t~malloc9.base, #t~malloc9.offset; 219#gFINAL assume true; 222#gEXIT >#59#return; 232#L55-1 ~np~0.base, ~np~0.offset := #t~ret12.base, #t~ret12.offset;havoc #t~ret12.base, #t~ret12.offset;call ULTIMATE.dealloc(~np~0.base, ~np~0.offset);call #t~malloc13.base, #t~malloc13.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc13.base, #t~malloc13.offset;havoc #t~malloc13.base, #t~malloc13.offset; 233#gFINAL assume true; 237#gEXIT >#59#return; 235#L55-1 ~np~0.base, ~np~0.offset := #t~ret12.base, #t~ret12.offset;havoc #t~ret12.base, #t~ret12.offset;call ULTIMATE.dealloc(~np~0.base, ~np~0.offset);call #t~malloc13.base, #t~malloc13.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc13.base, #t~malloc13.offset;havoc #t~malloc13.base, #t~malloc13.offset; 236#gFINAL assume true; 234#gEXIT >#53#return; 212#L25-1 call #t~ret4.base, #t~ret4.offset := f(#t~ret3.base, #t~ret3.offset, ~v - 1);< 215#fENTRY [2021-10-12 23:59:11,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:11,443 INFO L82 PathProgramCache]: Analyzing trace with hash 60187955, now seen corresponding path program 3 times [2021-10-12 23:59:11,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:11,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212452490] [2021-10-12 23:59:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:11,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,462 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,505 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:11,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:11,505 INFO L82 PathProgramCache]: Analyzing trace with hash 705855503, now seen corresponding path program 2 times [2021-10-12 23:59:11,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:11,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068313467] [2021-10-12 23:59:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:11,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,542 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:11,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:11,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1432639553, now seen corresponding path program 1 times [2021-10-12 23:59:11,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:11,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023602653] [2021-10-12 23:59:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:11,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,640 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:11,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:15,684 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 73833 column 342: unknown constant v_g_~p.offset_20 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:256) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.checkForFixpoint(FixpointCheck.java:101) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.(FixpointCheck.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) 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) [2021-10-12 23:59:15,687 INFO L168 Benchmark]: Toolchain (without parser) took 7746.85 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 101.6 MB in the beginning and 47.2 MB in the end (delta: 54.5 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,688 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 130.0 MB. Free memory was 83.7 MB in the beginning and 83.6 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-12 23:59:15,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.03 ms. Allocated memory is still 130.0 MB. Free memory was 101.6 MB in the beginning and 103.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 101.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,690 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 100.7 MB in the end (delta: 993.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,691 INFO L168 Benchmark]: RCFGBuilder took 439.68 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 88.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,691 INFO L168 Benchmark]: BuchiAutomizer took 6979.38 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 88.1 MB in the beginning and 47.2 MB in the end (delta: 41.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:15,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 130.0 MB. Free memory was 83.7 MB in the beginning and 83.6 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.03 ms. Allocated memory is still 130.0 MB. Free memory was 101.6 MB in the beginning and 103.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 101.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 100.7 MB in the end (delta: 993.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 439.68 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 88.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6979.38 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 88.1 MB in the beginning and 47.2 MB in the end (delta: 41.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: line 73833 column 342: unknown constant v_g_~p.offset_20 de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: line 73833 column 342: unknown constant v_g_~p.offset_20: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-12 23:59:15,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-12 23:59:15,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2a4d74-59a1-4891-a3fa-c1f5dbc2ce96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 1 Received shutdown request...