./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/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_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/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_e3feeda8-6761-4c0b-a4d6-abe19135f817/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 5a3f2d13c78d25176694a62cbb92a7cb676735e2350dda904e35c5c69ea362e5 --- 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 13:59:50,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:59:50,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:59:50,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:59:50,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:59:50,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:59:50,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:59:50,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:59:50,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:59:50,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:59:50,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:59:50,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:59:50,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:59:50,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:59:50,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:59:50,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:59:50,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:59:50,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:59:50,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:59:50,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:59:50,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:59:50,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:59:50,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:59:50,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:59:50,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:59:50,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:59:50,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:59:50,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:59:50,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:59:50,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:59:50,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:59:50,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:59:50,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:59:50,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:59:50,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:59:50,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:59:50,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:59:50,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:59:50,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:59:50,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:59:50,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:59:50,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:59:50,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:59:50,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:59:50,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:59:50,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:59:50,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:59:50,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:59:50,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:59:50,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:59:50,714 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:59:50,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:59:50,714 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:59:50,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:59:50,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:59:50,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:59:50,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:59:50,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:59:50,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:59:50,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:59:50,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:59:50,717 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:59:50,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:59:50,717 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:59:50,717 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_e3feeda8-6761-4c0b-a4d6-abe19135f817/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a3f2d13c78d25176694a62cbb92a7cb676735e2350dda904e35c5c69ea362e5 [2022-12-13 13:59:50,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:59:50,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:59:50,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:59:50,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:59:50,903 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:59:50,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loops/sum01-2.i [2022-12-13 13:59:53,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:59:53,718 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:59:53,718 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/sv-benchmarks/c/loops/sum01-2.i [2022-12-13 13:59:53,722 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/data/3f20f78be/2f2062cb985c44ffb41df7c3f12599e1/FLAG8593bfcb0 [2022-12-13 13:59:53,733 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/data/3f20f78be/2f2062cb985c44ffb41df7c3f12599e1 [2022-12-13 13:59:53,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:59:53,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:59:53,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:59:53,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:59:53,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:59:53,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@843cc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53, skipping insertion in model container [2022-12-13 13:59:53,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:59:53,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:59:53,870 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_e3feeda8-6761-4c0b-a4d6-abe19135f817/sv-benchmarks/c/loops/sum01-2.i[849,862] [2022-12-13 13:59:53,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_assert [2022-12-13 13:59:53,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:59:53,886 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:59:53,895 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_e3feeda8-6761-4c0b-a4d6-abe19135f817/sv-benchmarks/c/loops/sum01-2.i[849,862] [2022-12-13 13:59:53,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_assert [2022-12-13 13:59:53,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:59:53,908 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:59:53,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53 WrapperNode [2022-12-13 13:59:53,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:59:53,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:59:53,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:59:53,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:59:53,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,932 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-12-13 13:59:53,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:59:53,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:59:53,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:59:53,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:59:53,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:59:53,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:59:53,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:59:53,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:59:53,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (1/1) ... [2022-12-13 13:59:53,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:59:53,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:59:53,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:59:53,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:59:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:59:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:59:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:59:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:59:54,056 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:59:54,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:59:54,122 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:59:54,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:59:54,127 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:59:54,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:59:54 BoogieIcfgContainer [2022-12-13 13:59:54,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:59:54,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:59:54,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:59:54,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:59:54,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:59:53" (1/3) ... [2022-12-13 13:59:54,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1a2e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:59:54, skipping insertion in model container [2022-12-13 13:59:54,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:53" (2/3) ... [2022-12-13 13:59:54,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1a2e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:59:54, skipping insertion in model container [2022-12-13 13:59:54,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:59:54" (3/3) ... [2022-12-13 13:59:54,136 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2022-12-13 13:59:54,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:59:54,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:59:54,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:59:54,192 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;@4b6cfd42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:59:54,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:59:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 13:59:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 13:59:54,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:59:54,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:59:54,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:59:54,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:59:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1807120264, now seen corresponding path program 1 times [2022-12-13 13:59:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:59:54,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057682118] [2022-12-13 13:59:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:59:54,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:59:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:59:54,308 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 13:59:54,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:59:54,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057682118] [2022-12-13 13:59:54,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057682118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:59:54,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:59:54,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:59:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314262106] [2022-12-13 13:59:54,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:59:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:59:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:59:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:59:54,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:59:54,337 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:59:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:59:54,348 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-13 13:59:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:59:54,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 13:59:54,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:59:54,355 INFO L225 Difference]: With dead ends: 21 [2022-12-13 13:59:54,356 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 13:59:54,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:59:54,360 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:59:54,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:59:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 13:59:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 13:59:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-12-13 13:59:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 13:59:54,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-12-13 13:59:54,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:59:54,383 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 13:59:54,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:59:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 13:59:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 13:59:54,384 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:59:54,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:59:54,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:59:54,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:59:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:59:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1806941518, now seen corresponding path program 1 times [2022-12-13 13:59:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:59:54,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892846477] [2022-12-13 13:59:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:59:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:59:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:59:54,495 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 13:59:54,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:59:54,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892846477] [2022-12-13 13:59:54,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892846477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:59:54,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:59:54,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:59:54,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505274936] [2022-12-13 13:59:54,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:59:54,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:59:54,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:59:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:59:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:59:54,498 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:59:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:59:54,533 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-12-13 13:59:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:59:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 13:59:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:59:54,534 INFO L225 Difference]: With dead ends: 14 [2022-12-13 13:59:54,534 INFO L226 Difference]: Without dead ends: 10 [2022-12-13 13:59:54,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:59:54,536 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:59:54,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:59:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-13 13:59:54,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-13 13:59:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 13:59:54,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-12-13 13:59:54,541 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2022-12-13 13:59:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:59:54,542 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-12-13 13:59:54,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:59:54,542 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-12-13 13:59:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:59:54,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:59:54,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:59:54,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:59:54,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:59:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:59:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1357243696, now seen corresponding path program 1 times [2022-12-13 13:59:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:59:54,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943992792] [2022-12-13 13:59:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:59:54,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:59:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:59:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:59:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:59:54,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943992792] [2022-12-13 13:59:54,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943992792] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:59:54,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860269063] [2022-12-13 13:59:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:59:54,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:59:54,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:59:54,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:59:54,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:59:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:59:54,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 13:59:54,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:59:55,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:59:55,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:59:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:59:55,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860269063] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:59:55,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:59:55,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-12-13 13:59:55,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327200880] [2022-12-13 13:59:55,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:59:55,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 13:59:55,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:59:55,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 13:59:55,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-12-13 13:59:55,149 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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 13:59:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:59:55,291 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-12-13 13:59:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:59:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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 9 [2022-12-13 13:59:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:59:55,292 INFO L225 Difference]: With dead ends: 20 [2022-12-13 13:59:55,292 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 13:59:55,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-12-13 13:59:55,295 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:59:55,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:59:55,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 13:59:55,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 13:59:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2022-12-13 13:59:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-12-13 13:59:55,299 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2022-12-13 13:59:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:59:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-12-13 13:59:55,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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 13:59:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-12-13 13:59:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 13:59:55,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:59:55,300 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:59:55,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:59:55,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:59:55,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:59:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:59:55,505 INFO L85 PathProgramCache]: Analyzing trace with hash -530250892, now seen corresponding path program 2 times [2022-12-13 13:59:55,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:59:55,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175209294] [2022-12-13 13:59:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:59:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:59:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:59:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:59:55,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:59:55,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175209294] [2022-12-13 13:59:55,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175209294] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:59:55,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597572940] [2022-12-13 13:59:55,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:59:55,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:59:55,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:59:55,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:59:55,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:59:55,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:59:55,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:59:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 13:59:55,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:59:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:59:56,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:59:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:59:56,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597572940] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:59:56,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:59:56,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 27 [2022-12-13 13:59:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794390323] [2022-12-13 13:59:56,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:59:56,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 13:59:56,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:59:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 13:59:56,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2022-12-13 13:59:56,285 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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 13:59:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:59:56,555 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-12-13 13:59:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 13:59:56,555 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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 13 [2022-12-13 13:59:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:59:56,556 INFO L225 Difference]: With dead ends: 18 [2022-12-13 13:59:56,556 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:59:56,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=1157, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 13:59:56,557 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:59:56,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:59:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:59:56,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:59:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 13:59:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:59:56,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-12-13 13:59:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:59:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:59:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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 13:59:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:59:56,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:59:56,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:59:56,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:59:56,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:59:56,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:59:56,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 13:59:56,901 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2022-12-13 13:59:56,902 INFO L895 garLoopResultBuilder]: At program point L25-3(lines 25 27) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_main_~sn~0#1| 0)) (let ((.cse1 (* 2 |ULTIMATE.start_main_~i~0#1|)) (.cse0 (+ 2 |ULTIMATE.start_main_~sn~0#1|))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< |ULTIMATE.start_main_~sn~0#1| (+ (* 2 |ULTIMATE.start_main_~n~0#1|) 1))))) [2022-12-13 13:59:56,903 INFO L899 garLoopResultBuilder]: For program point L25-4(lines 25 27) no Hoare annotation was computed. [2022-12-13 13:59:56,903 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-12-13 13:59:56,904 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 13:59:56,904 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 13:59:56,904 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 13:59:56,904 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-12-13 13:59:56,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-12-13 13:59:56,905 INFO L902 garLoopResultBuilder]: At program point L22(lines 22 29) the Hoare annotation is: true [2022-12-13 13:59:56,906 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 18) no Hoare annotation was computed. [2022-12-13 13:59:56,906 INFO L902 garLoopResultBuilder]: At program point L16-2(lines 15 20) the Hoare annotation is: true [2022-12-13 13:59:56,915 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 13:59:56,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:59:56,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:59:56 BoogieIcfgContainer [2022-12-13 13:59:56,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:59:56,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:59:56,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:59:56,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:59:56,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:59:54" (3/4) ... [2022-12-13 13:59:56,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:59:56,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 13:59:56,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:59:56,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:59:56,974 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:59:57,000 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:59:57,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:59:57,000 INFO L158 Benchmark]: Toolchain (without parser) took 3264.72ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 110.2MB in the beginning and 69.3MB in the end (delta: 40.9MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,000 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:59:57,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.63ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 99.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.40ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,001 INFO L158 Benchmark]: Boogie Preprocessor took 15.33ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 657.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:59:57,001 INFO L158 Benchmark]: RCFGBuilder took 180.33ms. Allocated memory is still 146.8MB. Free memory was 97.7MB in the beginning and 87.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,001 INFO L158 Benchmark]: TraceAbstraction took 2823.79ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 71.4MB in the end (delta: 15.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,002 INFO L158 Benchmark]: Witness Printer took 44.74ms. Allocated memory is still 176.2MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:59:57,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.63ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 99.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.40ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.33ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 657.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 180.33ms. Allocated memory is still 146.8MB. Free memory was 97.7MB in the beginning and 87.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2823.79ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 71.4MB in the end (delta: 15.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 44.74ms. Allocated memory is still 176.2MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 27 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 32 HoareAnnotationTreeSize, 3 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 SizeOfPredicates, 10 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (i == 1 && sn == 0) || ((2 + sn <= 2 * i && 2 * i <= 2 + sn) && sn < 2 * n + 1) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 13:59:57,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3feeda8-6761-4c0b-a4d6-abe19135f817/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE