./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra3-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra3-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be69f8550c7a913949aef3a5cd6eb246d75bd127b105ae8a64bfc7bda606bcfc --- 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-dbf71c6-m [2022-10-17 10:30:48,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:30:48,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:30:48,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:30:48,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:30:48,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:30:48,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:30:48,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:30:48,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:30:48,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:30:48,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:30:48,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:30:48,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:30:48,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:30:48,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:30:48,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:30:48,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:30:48,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:30:48,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:30:48,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:30:48,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:30:48,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:30:48,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:30:48,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:30:48,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:30:48,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:30:48,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:30:48,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:30:48,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:30:48,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:30:48,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:30:48,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:30:48,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:30:48,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:30:48,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:30:48,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:30:48,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:30:48,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:30:48,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:30:48,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:30:48,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:30:48,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:30:48,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:30:48,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:30:48,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:30:48,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:30:48,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:30:48,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:30:48,851 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:30:48,851 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:30:48,851 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:30:48,852 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:30:48,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:30:48,852 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:30:48,852 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:30:48,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:30:48,853 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:30:48,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:30:48,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:30:48,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:30:48,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:30:48,854 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:30:48,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:30:48,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:30:48,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:30:48,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:30:48,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:30:48,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:30:48,857 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:30:48,857 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_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be69f8550c7a913949aef3a5cd6eb246d75bd127b105ae8a64bfc7bda606bcfc [2022-10-17 10:30:49,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:30:49,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:30:49,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:30:49,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:30:49,295 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:30:49,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-nla/dijkstra3-both-nt.c [2022-10-17 10:30:49,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/data/a197646db/4192c86b2e72474085ed042c6c203a97/FLAG7dffdcee0 [2022-10-17 10:30:49,858 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:30:49,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/sv-benchmarks/c/termination-nla/dijkstra3-both-nt.c [2022-10-17 10:30:49,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/data/a197646db/4192c86b2e72474085ed042c6c203a97/FLAG7dffdcee0 [2022-10-17 10:30:50,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/data/a197646db/4192c86b2e72474085ed042c6c203a97 [2022-10-17 10:30:50,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:30:50,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:30:50,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:50,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:30:50,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:30:50,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327724b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50, skipping insertion in model container [2022-10-17 10:30:50,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:30:50,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:30:50,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:50,509 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:30:50,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:50,538 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:30:50,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50 WrapperNode [2022-10-17 10:30:50,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:50,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:50,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:30:50,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:30:50,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,583 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-10-17 10:30:50,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:50,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:30:50,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:30:50,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:30:50,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:30:50,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:30:50,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:30:50,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:30:50,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (1/1) ... [2022-10-17 10:30:50,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:30:50,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:50,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:30:50,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:30:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:30:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:30:50,797 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:30:50,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:30:51,007 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:30:51,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:30:51,018 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:30:51,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:51 BoogieIcfgContainer [2022-10-17 10:30:51,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:30:51,022 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:30:51,023 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:30:51,027 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:30:51,028 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:30:51,028 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:30:50" (1/3) ... [2022-10-17 10:30:51,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ace2d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:30:51, skipping insertion in model container [2022-10-17 10:30:51,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:30:51,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:50" (2/3) ... [2022-10-17 10:30:51,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ace2d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:30:51, skipping insertion in model container [2022-10-17 10:30:51,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:30:51,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:51" (3/3) ... [2022-10-17 10:30:51,033 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra3-both-nt.c [2022-10-17 10:30:51,130 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:30:51,130 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:30:51,130 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:30:51,131 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:30:51,131 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:30:51,131 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:30:51,132 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:30:51,132 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:30:51,137 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) [2022-10-17 10:30:51,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:30:51,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:30:51,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:30:51,173 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:30:51,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:30:51,174 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:30:51,175 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) [2022-10-17 10:30:51,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:30:51,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:30:51,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:30:51,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:30:51,179 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:30:51,187 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true 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;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; 7#L40true assume main_~q~0#1 > main_~n~0#1; 8#L51-1true [2022-10-17 10:30:51,187 INFO L750 eck$LassoCheckResult]: Loop: 8#L51-1true assume !!(0 == main_~h~0#1 * main_~h~0#1 * main_~h~0#1 - 12 * main_~h~0#1 * main_~n~0#1 * main_~q~0#1 + 16 * main_~n~0#1 * main_~p~0#1 * main_~q~0#1 - main_~h~0#1 * main_~q~0#1 * main_~q~0#1 - 4 * main_~p~0#1 * main_~q~0#1 * main_~q~0#1 + 12 * main_~h~0#1 * main_~q~0#1 * main_~r~0#1 - 16 * main_~p~0#1 * main_~q~0#1 * main_~r~0#1); 4#L51true 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); 8#L51-1true [2022-10-17 10:30:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-10-17 10:30:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:51,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541129995] [2022-10-17 10:30:51,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:51,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:30:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:30:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1420, now seen corresponding path program 1 times [2022-10-17 10:30:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:51,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649735246] [2022-10-17 10:30:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:51,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:51,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:30:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123180382] [2022-10-17 10:30:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:51,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:51,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:30:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:30:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:30:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 28693997, now seen corresponding path program 1 times [2022-10-17 10:30:51,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:51,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163210863] [2022-10-17 10:30:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:51,456 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:30:51,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859758543] [2022-10-17 10:30:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:51,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:51,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:51,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:51,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecafe453-b7bb-4638-9989-b2f1e8b31592/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:30:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:30:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:30:51,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:31:04,343 WARN L233 SmtUtils]: Spent 12.56s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-17 10:31:33,373 WARN L233 SmtUtils]: Spent 29.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)