./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-02-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-02-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8 --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 558fefc48ea7e5510649f62ef741167490643b2b82a9234d3e5e6ab586beb6c7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:34:28,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:34:28,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:34:28,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:34:28,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:34:28,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:34:28,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:34:28,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:34:28,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:34:28,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:34:28,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:34:28,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:34:28,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:34:28,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:34:28,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:34:28,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:34:28,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:34:28,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:34:28,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:34:28,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:34:28,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:34:28,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:34:28,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:34:28,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:34:28,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:34:28,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:34:28,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:34:28,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:34:28,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:34:28,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:34:28,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:34:28,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:34:28,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:34:28,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:34:28,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:34:28,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:34:28,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:34:28,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:34:28,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:34:28,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:34:28,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:34:28,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:34:28,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:34:28,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:34:28,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:34:28,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:34:28,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:34:28,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:34:28,376 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:34:28,376 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:34:28,376 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:34:28,377 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:34:28,378 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:34:28,378 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:34:28,379 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:34:28,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:34:28,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:34:28,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:34:28,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:34:28,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:34:28,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:34:28,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:34:28,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:34:28,381 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:34:28,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:34:28,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:34:28,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:34:28,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:34:28,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:34:28,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:34:28,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:34:28,387 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_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 558fefc48ea7e5510649f62ef741167490643b2b82a9234d3e5e6ab586beb6c7 [2022-11-16 11:34:28,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:34:28,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:34:28,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:34:28,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:34:28,818 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:34:28,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-bwb/or-02-false.c [2022-11-16 11:34:28,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/data/12e4da710/20905eb7180240139460bb35b268050d/FLAG992392871 [2022-11-16 11:34:29,391 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:34:29,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/sv-benchmarks/c/termination-bwb/or-02-false.c [2022-11-16 11:34:29,408 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/data/12e4da710/20905eb7180240139460bb35b268050d/FLAG992392871 [2022-11-16 11:34:29,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/data/12e4da710/20905eb7180240139460bb35b268050d [2022-11-16 11:34:29,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:34:29,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:34:29,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:34:29,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:34:29,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:34:29,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:34:29" (1/1) ... [2022-11-16 11:34:29,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183233a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:29, skipping insertion in model container [2022-11-16 11:34:29,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:34:29" (1/1) ... [2022-11-16 11:34:29,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:34:29,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:34:30,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:34:30,010 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:34:30,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:34:30,038 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:34:30,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30 WrapperNode [2022-11-16 11:34:30,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:34:30,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:34:30,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:34:30,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:34:30,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,074 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-16 11:34:30,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:34:30,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:34:30,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:34:30,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:34:30,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:34:30,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:34:30,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:34:30,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:34:30,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (1/1) ... [2022-11-16 11:34:30,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:30,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:30,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:30,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:34:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:34:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:34:30,285 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:34:30,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:34:30,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:34:30,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:34:30,402 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:34:30,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:34:30 BoogieIcfgContainer [2022-11-16 11:34:30,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:34:30,405 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:34:30,406 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:34:30,410 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:34:30,411 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:34:30,411 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:34:29" (1/3) ... [2022-11-16 11:34:30,412 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2484ac33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:34:30, skipping insertion in model container [2022-11-16 11:34:30,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:34:30,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:30" (2/3) ... [2022-11-16 11:34:30,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2484ac33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:34:30, skipping insertion in model container [2022-11-16 11:34:30,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:34:30,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:34:30" (3/3) ... [2022-11-16 11:34:30,415 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-02-false.c [2022-11-16 11:34:30,478 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:34:30,478 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:34:30,478 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:34:30,479 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:34:30,479 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:34:30,479 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:34:30,479 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:34:30,479 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:34:30,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2022-11-16 11:34:30,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:34:30,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:34:30,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:34:30,510 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:34:30,510 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:34:30,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:34:30,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2022-11-16 11:34:30,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:34:30,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:34:30,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:34:30,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:34:30,513 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:34:30,521 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2#L19-2true [2022-11-16 11:34:30,522 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 > 0);main_~b~0#1 := 1 + main_~b~0#1; 5#L21true assume 0 == main_~b~0#1 || 1 == main_~b~0#1;main_~b~0#1 := 1; 7#L21-4true main_~x~0#1 := main_~x~0#1 + main_~b~0#1; 2#L19-2true [2022-11-16 11:34:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:34:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:30,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462617208] [2022-11-16 11:34:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:30,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:30,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:34:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:30,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:34:30,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2022-11-16 11:34:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:30,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408654120] [2022-11-16 11:34:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:30,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:34:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:30,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:34:30,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2022-11-16 11:34:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:30,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366255163] [2022-11-16 11:34:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:30,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366255163] [2022-11-16 11:34:30,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366255163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:30,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:30,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:34:30,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920041541] [2022-11-16 11:34:30,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:30,953 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:34:30,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:34:30,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:34:30,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:34:30,960 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:34:30,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:30,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:34:30,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:34:30,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02-false.c_Iteration1_Loop [2022-11-16 11:34:30,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:34:30,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:34:30,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:31,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:34:31,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:34:31,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:31,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:31,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:31,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:34:31,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:31,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:34:31,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:31,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:31,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:31,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:31,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:34:31,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:34:31,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:31,228 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:34:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:31,236 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:34:31,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:34:31,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:34:31,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:34:31,236 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:34:31,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:31,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:34:31,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:34:31,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02-false.c_Iteration1_Loop [2022-11-16 11:34:31,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:34:31,237 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:34:31,239 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:31,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:34:31,365 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:34:31,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:31,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:31,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:34:31,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:34:31,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:34:31,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:34:31,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:34:31,389 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-16 11:34:31,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:34:31,395 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-16 11:34:31,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:34:31,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:34:31,417 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:34:31,417 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:34:31,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:31,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:31,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:31,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:34:31,432 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:34:31,432 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:34:31,433 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 1 Supporting invariants [] [2022-11-16 11:34:31,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:34:31,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:31,447 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:34:31,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:31,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:34:31,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:34:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:31,503 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:34:31,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:34:31,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:31,694 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 11:34:31,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 11:34:31,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Result 36 states and 49 transitions. Complement of second has 8 states. [2022-11-16 11:34:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:34:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 11:34:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-11-16 11:34:31,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-16 11:34:31,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:34:31,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-16 11:34:31,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:34:31,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-16 11:34:31,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:34:31,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 49 transitions. [2022-11-16 11:34:31,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:34:31,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 14 states and 18 transitions. [2022-11-16 11:34:31,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-16 11:34:31,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-16 11:34:31,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2022-11-16 11:34:31,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:34:31,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-11-16 11:34:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2022-11-16 11:34:31,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-16 11:34:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-16 11:34:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-16 11:34:31,848 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-16 11:34:31,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:31,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:34:31,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:34:31,854 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 11:34:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:31,884 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-11-16 11:34:31,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-11-16 11:34:31,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:34:31,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2022-11-16 11:34:31,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-16 11:34:31,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-16 11:34:31,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2022-11-16 11:34:31,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:34:31,888 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-16 11:34:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2022-11-16 11:34:31,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-11-16 11:34:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-11-16 11:34:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-16 11:34:31,891 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-16 11:34:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:34:31,893 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-16 11:34:31,893 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:34:31,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2022-11-16 11:34:31,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:34:31,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:34:31,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:34:31,895 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:34:31,895 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:34:31,896 INFO L748 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 114#L19-2 assume !!(main_~x~0#1 > 0);main_~b~0#1 := 1 + main_~b~0#1; 115#L21 assume !(0 == main_~b~0#1 || 1 == main_~b~0#1); 118#L21-2 [2022-11-16 11:34:31,897 INFO L750 eck$LassoCheckResult]: Loop: 118#L21-2 assume !false;main_~b~0#1 := ~bitwiseOr(main_~b~0#1, 1);assume main_~b~0#1 < 0 || (main_~b~0#1 >= main_~b~0#1 && main_~b~0#1 >= 1);assume main_~b~0#1 >= 0 || main_~b~0#1 < 0;assume main_~b~0#1 < 0 || main_~b~0#1 <= 1 + main_~b~0#1; 119#L21-4 main_~x~0#1 := main_~x~0#1 + main_~b~0#1; 120#L19-2 assume !!(main_~x~0#1 > 0);main_~b~0#1 := 1 + main_~b~0#1; 121#L21 assume !(0 == main_~b~0#1 || 1 == main_~b~0#1); 118#L21-2 [2022-11-16 11:34:31,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-16 11:34:31,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:31,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538398058] [2022-11-16 11:34:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:34:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:34:31,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2022-11-16 11:34:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:31,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514696332] [2022-11-16 11:34:31,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:34:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:34:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 297897967, now seen corresponding path program 1 times [2022-11-16 11:34:31,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:31,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761624889] [2022-11-16 11:34:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:34:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:34:31,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:34:32,059 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:34:32,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:34:32,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:34:32,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:34:32,059 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:34:32,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:34:32,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:34:32,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02-false.c_Iteration2_Loop [2022-11-16 11:34:32,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:34:32,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:34:32,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:32,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:34:32,177 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:34:32,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:34:32,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:34:32,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:34:32,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:34:32,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,355 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:34:32,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-2, ULTIMATE.start_main_~b~0#1=4} Honda state: {ULTIMATE.start_main_~x~0#1=-2, ULTIMATE.start_main_~b~0#1=4} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 15, 13] Nus: [1, 1] [2022-11-16 11:34:32,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,403 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:34:32,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:34:32,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:34:32,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:34:32,404 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:34:32,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:34:32,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:34:32,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02-false.c_Iteration2_Lasso [2022-11-16 11:34:32,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:34:32,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:34:32,406 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:32,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:32,412 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:34:32,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:34:32,535 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:34:32,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,537 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:34:32,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:34:32,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:34:32,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:34:32,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,575 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:34:32,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:34:32,599 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:34:32,599 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:34:32,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:34:32,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:34:32,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:34:32,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:32,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:32,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:34:32,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:34:32,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:34:32,979 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:34:32,979 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=0, ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~b~0#1=31, ULTIMATE.start_main_~x~0#1=64} Generalized eigenvectors: [{ULTIMATE.start_main_~b~0#1=3, ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~b~0#1=18, ULTIMATE.start_main_~x~0#1=21}, {ULTIMATE.start_main_~b~0#1=-30, ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 7, 0] Nus: [1, 0] [2022-11-16 11:34:32,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:34:32,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:34:32 BoogieIcfgContainer [2022-11-16 11:34:32,996 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:34:32,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:34:32,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:34:32,997 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:34:32,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:34:30" (3/4) ... [2022-11-16 11:34:33,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:34:33,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:34:33,006 INFO L158 Benchmark]: Toolchain (without parser) took 3226.47ms. Allocated memory is still 119.5MB. Free memory was 80.3MB in the beginning and 58.9MB in the end (delta: 21.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,006 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory was 96.6MB in the beginning and 96.4MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.59ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 96.1MB in the end (delta: -16.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 119.5MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:34:33,008 INFO L158 Benchmark]: Boogie Preprocessor took 29.91ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,014 INFO L158 Benchmark]: RCFGBuilder took 297.78ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 85.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,015 INFO L158 Benchmark]: BuchiAutomizer took 2590.87ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 59.6MB in the end (delta: 25.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-11-16 11:34:33,016 INFO L158 Benchmark]: Witness Printer took 6.91ms. Allocated memory is still 119.5MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:34:33,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory was 96.6MB in the beginning and 96.4MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.59ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 96.1MB in the end (delta: -16.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 119.5MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.91ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.78ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 85.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2590.87ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 59.6MB in the end (delta: 25.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 6.91ms. Allocated memory is still 119.5MB. Free memory is still 58.9MB. 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 Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function -2 * b + 1 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf95 smp100 dnf213 smp72 tf102 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: b = b|1 [21] (Reason bitwiseOr) Lasso 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_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume !!(main_~x~0#1 > 0);main_~b~0#1 := 1 + main_~b~0#1;" "assume !(0 == main_~b~0#1 || 1 == main_~b~0#1);" Loop: "assume !false;main_~b~0#1 := ~bitwiseOr(main_~b~0#1, 1);assume main_~b~0#1 < 0 || (main_~b~0#1 >= main_~b~0#1 && main_~b~0#1 >= 1);assume main_~b~0#1 >= 0 || main_~b~0#1 < 0;assume main_~b~0#1 < 0 || main_~b~0#1 <= 1 + main_~b~0#1;" "main_~x~0#1 := main_~x~0#1 + main_~b~0#1;" "assume !!(main_~x~0#1 > 0);main_~b~0#1 := 1 + main_~b~0#1;" "assume !(0 == main_~b~0#1 || 1 == main_~b~0#1);" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-16 11:34:33,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fb0871-5313-44dd-89fd-662f07bbfd3a/bin/uautomizer-tPACEb0tL8/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: UNKNOWN