./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_math_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_math_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX --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 32bit --witnessprinter.graph.data.programhash 63c09076012948d358ef22d7f5bfd1d18463c56506eb9759740cc4520130fa60 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:41:07,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:41:07,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:41:07,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:41:07,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:41:07,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:41:07,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:41:07,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:41:07,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:41:07,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:41:07,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:41:07,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:41:07,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:41:07,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:41:07,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:41:07,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:41:07,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:41:07,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:41:07,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:41:07,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:41:07,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:41:07,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:41:07,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:41:07,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:41:07,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:41:07,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:41:07,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:41:07,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:41:07,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:41:07,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:41:07,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:41:07,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:41:07,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:41:07,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:41:07,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:41:07,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:41:07,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:41:07,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:41:07,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:41:07,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:41:07,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:41:07,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:41:07,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:41:07,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:41:07,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:41:07,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:41:07,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:41:07,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:41:07,631 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:41:07,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:41:07,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:41:07,631 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:41:07,633 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:41:07,633 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:41:07,633 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:41:07,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:41:07,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:41:07,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:41:07,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:41:07,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:41:07,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:41:07,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:41:07,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:41:07,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:41:07,635 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:41:07,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:41:07,636 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:41:07,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:41:07,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:41:07,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:41:07,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:41:07,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:41:07,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:41:07,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:41:07,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:41:07,640 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_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c09076012948d358ef22d7f5bfd1d18463c56506eb9759740cc4520130fa60 [2021-11-09 10:41:07,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:41:08,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:41:08,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:41:08,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:41:08,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:41:08,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/psyco/psyco_math_1.c [2021-11-09 10:41:08,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/data/5ebef2065/b3247d8589d641329aeffa93cd8d19d0/FLAGa27e7d8ad [2021-11-09 10:41:08,647 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:41:08,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/sv-benchmarks/c/psyco/psyco_math_1.c [2021-11-09 10:41:08,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/data/5ebef2065/b3247d8589d641329aeffa93cd8d19d0/FLAGa27e7d8ad [2021-11-09 10:41:08,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/data/5ebef2065/b3247d8589d641329aeffa93cd8d19d0 [2021-11-09 10:41:08,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:41:08,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:41:08,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:08,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:41:08,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:41:08,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:08" (1/1) ... [2021-11-09 10:41:08,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3515ade2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:08, skipping insertion in model container [2021-11-09 10:41:08,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:08" (1/1) ... [2021-11-09 10:41:08,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:41:08,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:41:09,256 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-11-09 10:41:09,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:09,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:41:09,328 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-11-09 10:41:09,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:09,364 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:41:09,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09 WrapperNode [2021-11-09 10:41:09,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:09,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:09,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:41:09,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:41:09,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:09,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:41:09,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:41:09,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:41:09,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:41:09,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:41:09,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:41:09,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:41:09,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (1/1) ... [2021-11-09 10:41:09,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:41:09,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:09,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:41:09,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:41:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:41:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:41:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:41:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:41:10,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:41:10,135 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-11-09 10:41:10,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:10 BoogieIcfgContainer [2021-11-09 10:41:10,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:41:10,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:41:10,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:41:10,153 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:41:10,154 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:41:10,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:41:08" (1/3) ... [2021-11-09 10:41:10,156 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b30680d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:41:10, skipping insertion in model container [2021-11-09 10:41:10,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:41:10,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:09" (2/3) ... [2021-11-09 10:41:10,156 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b30680d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:41:10, skipping insertion in model container [2021-11-09 10:41:10,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:41:10,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:10" (3/3) ... [2021-11-09 10:41:10,158 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2021-11-09 10:41:10,206 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:41:10,206 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:41:10,206 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:41:10,207 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:41:10,207 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:41:10,207 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:41:10,207 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:41:10,207 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:41:10,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:10,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-11-09 10:41:10,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:41:10,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:41:10,261 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 10:41:10,261 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-09 10:41:10,261 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:41:10,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:10,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-11-09 10:41:10,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:41:10,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:41:10,270 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 10:41:10,270 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-09 10:41:10,278 INFO L791 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 42#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 11#L28-2true [2021-11-09 10:41:10,278 INFO L793 eck$LassoCheckResult]: Loop: 11#L28-2true goto; 54#L354true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15;main_~P10~0 := main_#t~nondet16;havoc main_#t~nondet16;main_~P11~0 := main_#t~nondet17;havoc main_#t~nondet17;main_~P12~0 := main_#t~nondet18;havoc main_#t~nondet18;main_~P13~0 := main_#t~nondet19;havoc main_#t~nondet19;main_~P14~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~P15~0 := main_#t~nondet21;havoc main_#t~nondet21;main_~P16~0 := main_#t~nondet22;havoc main_#t~nondet22;main_~P17~0 := main_#t~nondet23;havoc main_#t~nondet23; 39#L51true assume !(0 == main_~q~0); 66#L70true assume !(1 == main_~q~0); 61#L138true assume !(2 == main_~q~0); 11#L28-2true [2021-11-09 10:41:10,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:10,285 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 10:41:10,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:10,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800400730] [2021-11-09 10:41:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:10,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:10,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:41:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:10,451 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:10,454 INFO L85 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2021-11-09 10:41:10,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:10,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162921369] [2021-11-09 10:41:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:10,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:10,468 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:41:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:10,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:10,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2021-11-09 10:41:10,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:10,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245810184] [2021-11-09 10:41:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:10,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:41:10,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:10,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245810184] [2021-11-09 10:41:10,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245810184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:10,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:10,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:10,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470584237] [2021-11-09 10:41:10,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:10,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:10,958 INFO L87 Difference]: Start difference. First operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:11,025 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2021-11-09 10:41:11,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:11,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2021-11-09 10:41:11,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-11-09 10:41:11,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2021-11-09 10:41:11,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-11-09 10:41:11,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-11-09 10:41:11,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2021-11-09 10:41:11,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:41:11,055 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-11-09 10:41:11,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2021-11-09 10:41:11,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-09 10:41:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 51 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2021-11-09 10:41:11,097 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-11-09 10:41:11,098 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-11-09 10:41:11,099 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:41:11,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2021-11-09 10:41:11,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-11-09 10:41:11,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:41:11,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:41:11,107 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:41:11,107 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:41:11,108 INFO L791 eck$LassoCheckResult]: Stem: 193#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 187#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 160#L28-2 goto; 161#L354 [2021-11-09 10:41:11,108 INFO L793 eck$LassoCheckResult]: Loop: 161#L354 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15;main_~P10~0 := main_#t~nondet16;havoc main_#t~nondet16;main_~P11~0 := main_#t~nondet17;havoc main_#t~nondet17;main_~P12~0 := main_#t~nondet18;havoc main_#t~nondet18;main_~P13~0 := main_#t~nondet19;havoc main_#t~nondet19;main_~P14~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~P15~0 := main_#t~nondet21;havoc main_#t~nondet21;main_~P16~0 := main_#t~nondet22;havoc main_#t~nondet22;main_~P17~0 := main_#t~nondet23;havoc main_#t~nondet23; 185#L51 assume 0 == main_~q~0; 186#L52 assume !(0 != main_#t~nondet24);havoc main_#t~nondet24; 161#L354 [2021-11-09 10:41:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-11-09 10:41:11,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:11,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191800431] [2021-11-09 10:41:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:11,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,156 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:41:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-11-09 10:41:11,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:11,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108384388] [2021-11-09 10:41:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:11,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:41:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-11-09 10:41:11,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:11,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492813235] [2021-11-09 10:41:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:11,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,239 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:41:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:41:11,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:12,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:41:12 BoogieIcfgContainer [2021-11-09 10:41:12,146 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:41:12,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:41:12,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:41:12,147 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:41:12,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:10" (3/4) ... [2021-11-09 10:41:12,151 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 10:41:12,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:41:12,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:41:12,229 INFO L168 Benchmark]: Toolchain (without parser) took 3273.53 ms. Allocated memory is still 130.0 MB. Free memory was 93.0 MB in the beginning and 47.9 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,230 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:41:12,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.78 ms. Allocated memory is still 130.0 MB. Free memory was 92.9 MB in the beginning and 104.1 MB in the end (delta: -11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.25 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 102.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,231 INFO L168 Benchmark]: Boogie Preprocessor took 60.89 ms. Allocated memory is still 130.0 MB. Free memory was 102.0 MB in the beginning and 100.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,232 INFO L168 Benchmark]: RCFGBuilder took 623.09 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 85.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,233 INFO L168 Benchmark]: BuchiAutomizer took 2008.01 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 49.9 MB in the end (delta: 35.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,233 INFO L168 Benchmark]: Witness Printer took 76.78 ms. Allocated memory is still 130.0 MB. Free memory was 49.9 MB in the beginning and 47.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:41:12,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 412.78 ms. Allocated memory is still 130.0 MB. Free memory was 92.9 MB in the beginning and 104.1 MB in the end (delta: -11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.25 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 102.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.89 ms. Allocated memory is still 130.0 MB. Free memory was 102.0 MB in the beginning and 100.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 623.09 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 85.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2008.01 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 49.9 MB in the end (delta: 35.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Witness Printer took 76.78 ms. Allocated memory is still 130.0 MB. Free memory was 49.9 MB in the beginning and 47.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 93 SDtfs, 4 SDslu, 68 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 28]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20948} State at position 1 is {NULL=0, NULL=20948, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f75d101=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8c81fc4=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20ccc75f=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38328ac8=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40b37f17=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff895e=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2091951c=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45dbb7b1=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44279bd2=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd99aad=28, NULL=0, NULL=0, P8=24, P10=36, P6=34, P4=35, P2=21, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55ab9ced=0, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7784ad15=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d8f75ec=0, P14=26, P12=25, P16=29, m_checkedAdd=7, NULL=20951, \result=0, m_checkedSubtract=4, m_checkedMultiply=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f11116a=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de0b22b=21, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50e6a926=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ca94b89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38cc4503=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63d64287=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@454b1dde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51fe7e6b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ab56882=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3348f3fd=0, NULL=20949, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69764cca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3865e919=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@255da626=0, NULL=0, P9=28, P7=22, NULL=20950, P5=31, P3=27, P1=30, m_log10=3, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46cf4021=26, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a07f6fa=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3197776a=29, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16624067=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64bb14c=0, P13=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fb9304b=0, P11=33, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ddead7f=32, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71ac22ad=0, P17=32, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2449aa44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e6fb580=0, P15=20} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 28]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_isPowerOfTwo = 1; [L8] int m_IntMath = 2; [L9] int m_log10 = 3; [L10] int m_checkedSubtract = 4; [L11] int m_checkedMultiply = 5; [L12] int m_log2 = 6; [L13] int m_checkedAdd = 7; [L14] int m_mod_1 = 8; [L15] int m_mod_2 = 9; [L16] int m_factorial_1 = 10; [L17] int m_factorial_2 = 11; [L22] int q = 0; [L23] int method_id; Loop: [L28] COND TRUE 1 [L31] int P1=__VERIFIER_nondet_int(); [L32] int P2=__VERIFIER_nondet_int(); [L33] int P3=__VERIFIER_nondet_int(); [L34] int P4=__VERIFIER_nondet_int(); [L35] int P5=__VERIFIER_nondet_int(); [L36] int P6=__VERIFIER_nondet_int(); [L37] int P7=__VERIFIER_nondet_int(); [L38] int P8=__VERIFIER_nondet_int(); [L39] int P9=__VERIFIER_nondet_int(); [L40] int P10=__VERIFIER_nondet_int(); [L41] int P11=__VERIFIER_nondet_int(); [L42] int P12=__VERIFIER_nondet_int(); [L43] int P13=__VERIFIER_nondet_int(); [L44] int P14=__VERIFIER_nondet_int(); [L45] int P15=__VERIFIER_nondet_int(); [L46] int P16=__VERIFIER_nondet_int(); [L47] int P17=__VERIFIER_nondet_int(); [L51] COND TRUE q == 0 [L52] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 10:41:12,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd0e68c-16d0-4873-af1b-23fdb4318e5d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)