./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem103_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem103_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd158ebc348827106e37f3cec44cef5fe66600b4dbba4197b9790e0d4ad173e0 --- 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-2329fc7 [2022-12-13 21:38:12,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:38:12,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:38:12,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:38:12,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:38:12,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:38:12,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:38:12,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:38:12,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:38:12,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:38:12,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:38:12,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:38:12,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:38:12,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:38:12,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:38:12,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:38:12,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:38:12,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:38:12,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:38:12,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:38:12,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:38:12,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:38:12,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:38:12,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:38:12,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:38:12,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:38:12,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:38:12,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:38:12,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:38:12,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:38:12,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:38:12,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:38:12,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:38:12,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:38:12,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:38:12,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:38:12,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:38:12,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:38:12,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:38:12,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:38:12,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:38:12,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:38:12,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:38:12,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:38:12,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:38:12,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:38:12,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:38:12,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:38:12,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:38:12,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:38:12,851 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:38:12,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:38:12,851 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:38:12,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:38:12,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:38:12,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:38:12,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:38:12,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:38:12,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:38:12,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:38:12,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:38:12,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:38:12,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:38:12,855 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:38:12,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:38:12,855 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:38:12,855 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd158ebc348827106e37f3cec44cef5fe66600b4dbba4197b9790e0d4ad173e0 [2022-12-13 21:38:13,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:38:13,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:38:13,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:38:13,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:38:13,079 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:38:13,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-programs/Problem103_label48.c [2022-12-13 21:38:15,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:38:17,401 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:38:17,402 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/sv-benchmarks/c/eca-programs/Problem103_label48.c [2022-12-13 21:38:17,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/data/76b5b32c5/5885d31327d94f12b4a7fb82ce9b37a5/FLAGf16a15e2d [2022-12-13 21:38:18,173 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/data/76b5b32c5/5885d31327d94f12b4a7fb82ce9b37a5 [2022-12-13 21:38:18,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:38:18,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:38:18,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:38:18,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:38:18,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:38:18,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:38:18" (1/1) ... [2022-12-13 21:38:18,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a3e579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:18, skipping insertion in model container [2022-12-13 21:38:18,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:38:18" (1/1) ... [2022-12-13 21:38:18,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:38:19,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:38:43,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/sv-benchmarks/c/eca-programs/Problem103_label48.c[6304687,6304700] [2022-12-13 21:38:43,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:38:43,795 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:38:56,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/sv-benchmarks/c/eca-programs/Problem103_label48.c[6304687,6304700] [2022-12-13 21:38:56,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:39:00,630 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:39:00,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00 WrapperNode [2022-12-13 21:39:00,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:39:00,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:39:00,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:39:00,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:39:00,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:01,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:03,746 INFO L138 Inliner]: procedures = 88, calls = 82, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 197824 [2022-12-13 21:39:03,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:39:03,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:39:03,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:39:03,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:39:03,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:03,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:04,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:04,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:05,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:05,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:05,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:06,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:06,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:39:06,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:39:06,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:39:06,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:39:06,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (1/1) ... [2022-12-13 21:39:06,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:39:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:39:06,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:39:06,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35649d8f-f23d-4aef-85e7-19b755f03339/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:39:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:39:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:39:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:39:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:39:06,892 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:39:06,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:40:10,253 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:40:10,302 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:40:10,302 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:40:10,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:10 BoogieIcfgContainer [2022-12-13 21:40:10,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:40:10,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:40:10,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:40:10,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:40:10,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:38:18" (1/3) ... [2022-12-13 21:40:10,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2a5cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:40:10, skipping insertion in model container [2022-12-13 21:40:10,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:00" (2/3) ... [2022-12-13 21:40:10,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2a5cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:40:10, skipping insertion in model container [2022-12-13 21:40:10,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:10" (3/3) ... [2022-12-13 21:40:10,320 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem103_label48.c [2022-12-13 21:40:10,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:40:10,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:40:10,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:40:10,524 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f867211, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:40:10,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:40:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 20356 states, 20354 states have (on average 1.902525302151911) internal successors, (38724), 20355 states have internal predecessors, (38724), 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) [2022-12-13 21:40:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16496 [2022-12-13 21:40:11,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:40:11,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:40:11,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:40:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1885048099, now seen corresponding path program 1 times [2022-12-13 21:40:11,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:11,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525778985] [2022-12-13 21:40:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:41:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:41:24,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:41:24,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525778985] [2022-12-13 21:41:24,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525778985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:41:24,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:41:24,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:41:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620863517] [2022-12-13 21:41:24,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:41:24,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:41:24,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:41:24,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:41:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:41:24,136 INFO L87 Difference]: Start difference. First operand has 20356 states, 20354 states have (on average 1.902525302151911) internal successors, (38724), 20355 states have internal predecessors, (38724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5498.333333333333) internal successors, (16495), 2 states have internal predecessors, (16495), 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) [2022-12-13 21:42:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:42:17,353 INFO L93 Difference]: Finished difference Result 58721 states and 112420 transitions. [2022-12-13 21:42:17,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:42:17,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5498.333333333333) internal successors, (16495), 2 states have internal predecessors, (16495), 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) Word has length 16495 [2022-12-13 21:42:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:42:17,462 INFO L225 Difference]: With dead ends: 58721 [2022-12-13 21:42:17,462 INFO L226 Difference]: Without dead ends: 38301 [2022-12-13 21:42:17,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:42:17,482 INFO L413 NwaCegarLoop]: 10456 mSDtfsCounter, 6030 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 55887 mSolverCounterSat, 14342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6030 SdHoareTripleChecker+Valid, 12647 SdHoareTripleChecker+Invalid, 70229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14342 IncrementalHoareTripleChecker+Valid, 55887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:42:17,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6030 Valid, 12647 Invalid, 70229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14342 Valid, 55887 Invalid, 0 Unknown, 0 Unchecked, 52.2s Time] [2022-12-13 21:42:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38301 states. [2022-12-13 21:42:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38301 to 38045. [2022-12-13 21:42:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38045 states, 38044 states have (on average 1.795368520660288) internal successors, (68303), 38044 states have internal predecessors, (68303), 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) [2022-12-13 21:42:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38045 states to 38045 states and 68303 transitions. [2022-12-13 21:42:18,030 INFO L78 Accepts]: Start accepts. Automaton has 38045 states and 68303 transitions. Word has length 16495 [2022-12-13 21:42:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:42:18,046 INFO L495 AbstractCegarLoop]: Abstraction has 38045 states and 68303 transitions. [2022-12-13 21:42:18,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5498.333333333333) internal successors, (16495), 2 states have internal predecessors, (16495), 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) [2022-12-13 21:42:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 38045 states and 68303 transitions. [2022-12-13 21:42:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16500 [2022-12-13 21:42:19,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:42:19,472 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:19,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:42:19,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:42:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:19,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1452727634, now seen corresponding path program 1 times [2022-12-13 21:42:19,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:19,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452419468] [2022-12-13 21:42:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat