./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --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 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:19:08,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:19:08,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 23:19:08,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:19:08,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:19:08,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:19:08,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:19:08,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:19:08,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:19:08,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:19:08,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:19:08,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:19:08,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:19:08,646 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:19:08,646 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:19:08,647 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:19:08,647 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:19:08,647 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:19:08,647 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:19:08,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:19:08,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:19:08,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:19:08,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:19:08,652 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:19:08,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:19:08,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:19:08,653 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:19:08,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:19:08,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:19:08,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:19:08,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:19:08,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:19:08,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:19:08,655 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:19:08,655 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 [2024-11-27 23:19:09,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:19:09,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:19:09,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:19:09,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:19:09,051 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:19:09,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2024-11-27 23:19:12,178 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/data/0b626bea5/504abd0adf2e400ab70451484b23d32f/FLAG7f70ca511 [2024-11-27 23:19:12,532 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:19:12,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2024-11-27 23:19:12,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/data/0b626bea5/504abd0adf2e400ab70451484b23d32f/FLAG7f70ca511 [2024-11-27 23:19:12,560 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/data/0b626bea5/504abd0adf2e400ab70451484b23d32f [2024-11-27 23:19:12,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:19:12,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:19:12,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:19:12,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:19:12,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:19:12,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b192196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12, skipping insertion in model container [2024-11-27 23:19:12,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:19:12,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:19:12,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:19:12,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:19:12,848 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:19:12,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12 WrapperNode [2024-11-27 23:19:12,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:19:12,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:12,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:19:12,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:19:12,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,881 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-27 23:19:12,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:12,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:19:12,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:19:12,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:19:12,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,908 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 23:19:12,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:19:12,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:19:12,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:19:12,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:19:12,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (1/1) ... [2024-11-27 23:19:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:19:12,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:12,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:19:12,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:19:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:19:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:19:13,069 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:19:13,071 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:19:13,185 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-27 23:19:13,185 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:19:13,199 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:19:13,200 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:19:13,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:13 BoogieIcfgContainer [2024-11-27 23:19:13,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:19:13,202 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:19:13,202 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:19:13,209 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:19:13,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:19:13,210 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:19:12" (1/3) ... [2024-11-27 23:19:13,212 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6579440d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:19:13, skipping insertion in model container [2024-11-27 23:19:13,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:19:13,212 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:12" (2/3) ... [2024-11-27 23:19:13,212 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6579440d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:19:13, skipping insertion in model container [2024-11-27 23:19:13,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:19:13,213 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:13" (3/3) ... [2024-11-27 23:19:13,214 INFO L363 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2024-11-27 23:19:13,294 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:19:13,295 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:19:13,295 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:19:13,295 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:19:13,295 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:19:13,296 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:19:13,296 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:19:13,297 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:19:13,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2024-11-27 23:19:13,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:19:13,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:19:13,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:19:13,332 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 23:19:13,333 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 23:19:13,333 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:19:13,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2024-11-27 23:19:13,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:19:13,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:19:13,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:19:13,335 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 23:19:13,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 23:19:13,345 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0;" "assume main_~q~0#1 > main_~n~0#1;" [2024-11-27 23:19:13,345 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~r~0#1 < 2 * main_~p~0#1 + main_~q~0#1;" "assume !(4 * (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4) == main_~q~0#1 && 2 * (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2) == main_~p~0#1);" [2024-11-27 23:19:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-27 23:19:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:19:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911255730] [2024-11-27 23:19:13,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,451 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:19:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:19:13,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1327, now seen corresponding path program 1 times [2024-11-27 23:19:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:19:13,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743964915] [2024-11-27 23:19:13,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:13,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,505 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:19:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:19:13,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:13,534 INFO L85 PathProgramCache]: Analyzing trace with hash 28693904, now seen corresponding path program 1 times [2024-11-27 23:19:13,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:19:13,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977783844] [2024-11-27 23:19:13,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:13,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,566 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:19:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:19:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,880 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:19:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:19:13,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:19:13 BoogieIcfgContainer [2024-11-27 23:19:13,919 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:19:13,920 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:19:13,920 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:19:13,920 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:19:13,921 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:13" (3/4) ... [2024-11-27 23:19:13,923 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:19:13,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:19:13,967 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:19:13,969 INFO L158 Benchmark]: Toolchain (without parser) took 1403.38ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 50.1MB in the end (delta: 44.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-27 23:19:13,969 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:19:13,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.07ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 84.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:19:13,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.10ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:19:13,970 INFO L158 Benchmark]: Boogie Preprocessor took 43.49ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:19:13,971 INFO L158 Benchmark]: RCFGBuilder took 273.56ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 72.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:19:13,971 INFO L158 Benchmark]: BuchiAutomizer took 717.38ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 52.3MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:19:13,971 INFO L158 Benchmark]: Witness Printer took 47.74ms. Allocated memory is still 117.4MB. Free memory was 52.0MB in the beginning and 50.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:19:13,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.07ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 84.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.10ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.49ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.56ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 72.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 717.38ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 52.3MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 47.74ms. Allocated memory is still 117.4MB. Free memory was 52.0MB in the beginning and 50.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 VAL [n=0, p=0, q=1, r=0] [L40] COND TRUE q > n VAL [p=0, q=1, r=0] Loop: [L41] COND TRUE r < 2 * p + q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 VAL [n=0, p=0, q=1, r=0] [L40] COND TRUE q > n VAL [p=0, q=1, r=0] Loop: [L41] COND TRUE r < 2 * p + q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:19:13,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f473fd37-a2c4-4a9d-8ae1-6ac5bf4e8fdc/bin/uautomizer-verify-aQ6SnzHsRB/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)