./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina2f.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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/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 e23a153007909016a01fbe630ca1e32f2767aaf9a3ccafb094486520a26abba4 --- 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 20:30:03,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:30:03,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:30:03,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:30:03,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:30:03,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:30:03,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:30:03,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:30:03,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:30:03,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:30:03,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:30:03,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:30:03,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:30:03,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:30:03,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:30:03,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:30:03,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:30:03,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:30:03,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:30:03,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:30:03,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:30:03,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:30:03,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:30:03,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:30:03,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:30:03,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:30:03,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:30:03,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:30:03,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:30:03,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:30:03,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:30:03,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:30:03,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:30:03,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:30:03,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:30:03,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:30:03,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:30:03,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:30:03,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:30:03,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:30:03,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:30:03,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:30:03,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:30:03,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:30:03,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:30:03,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:30:03,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:30:03,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:30:03,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:30:03,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:30:03,991 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:30:03,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:30:03,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:30:03,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:30:03,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:30:03,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:30:03,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:30:03,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:30:03,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:30:03,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:30:03,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:30:03,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:30:04,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:30:04,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:30:04,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:30:04,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:30:04,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:30:04,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:30:04,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:30:04,001 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:30:04,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:30:04,001 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:30:04,002 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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e23a153007909016a01fbe630ca1e32f2767aaf9a3ccafb094486520a26abba4 [2022-12-13 20:30:04,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:30:04,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:30:04,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:30:04,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:30:04,210 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:30:04,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-fpi/sina2f.c [2022-12-13 20:30:06,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:30:06,864 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:30:06,864 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/sv-benchmarks/c/array-fpi/sina2f.c [2022-12-13 20:30:06,869 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/data/6de8f615a/a2ac6cdb3f1a46a39fe4635f7a6e3957/FLAGc7bcdc2df [2022-12-13 20:30:06,879 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/data/6de8f615a/a2ac6cdb3f1a46a39fe4635f7a6e3957 [2022-12-13 20:30:06,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:30:06,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:30:06,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:30:06,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:30:06,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:30:06,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:30:06" (1/1) ... [2022-12-13 20:30:06,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5089b10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:06, skipping insertion in model container [2022-12-13 20:30:06,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:30:06" (1/1) ... [2022-12-13 20:30:06,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:30:06,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:30:07,001 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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/sv-benchmarks/c/array-fpi/sina2f.c[589,602] [2022-12-13 20:30:07,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:30:07,021 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:30:07,029 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_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/sv-benchmarks/c/array-fpi/sina2f.c[589,602] [2022-12-13 20:30:07,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:30:07,044 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:30:07,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07 WrapperNode [2022-12-13 20:30:07,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:30:07,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:30:07,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:30:07,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:30:07,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,069 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2022-12-13 20:30:07,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:30:07,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:30:07,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:30:07,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:30:07,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,086 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:30:07,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:30:07,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:30:07,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:30:07,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (1/1) ... [2022-12-13 20:30:07,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:30:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:30:07,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:30:07,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:30:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:30:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:30:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:30:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:30:07,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:30:07,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:30:07,321 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:30:07,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:30:07,326 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 20:30:07,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:07 BoogieIcfgContainer [2022-12-13 20:30:07,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:30:07,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:30:07,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:30:07,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:30:07,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:30:06" (1/3) ... [2022-12-13 20:30:07,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adebf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:30:07, skipping insertion in model container [2022-12-13 20:30:07,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:07" (2/3) ... [2022-12-13 20:30:07,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adebf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:30:07, skipping insertion in model container [2022-12-13 20:30:07,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:07" (3/3) ... [2022-12-13 20:30:07,335 INFO L112 eAbstractionObserver]: Analyzing ICFG sina2f.c [2022-12-13 20:30:07,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:30:07,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:30:07,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:30:07,394 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;@36b82347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:30:07,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:30:07,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 20:30:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:30:07,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:07,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:07,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:07,408 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2022-12-13 20:30:07,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:07,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852948540] [2022-12-13 20:30:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:07,534 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 20:30:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852948540] [2022-12-13 20:30:07,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852948540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:07,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:07,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:30:07,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828279092] [2022-12-13 20:30:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:07,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:30:07,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:07,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:30:07,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:30:07,566 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.0) internal successors, (14), 2 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 20:30:07,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:07,578 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2022-12-13 20:30:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:30:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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) Word has length 14 [2022-12-13 20:30:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:07,586 INFO L225 Difference]: With dead ends: 44 [2022-12-13 20:30:07,586 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 20:30:07,588 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 20:30:07,591 INFO L413 NwaCegarLoop]: 28 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, 28 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 20:30:07,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:30:07,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 20:30:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-13 20:30:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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 20:30:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-13 20:30:07,619 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2022-12-13 20:30:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:07,619 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-13 20:30:07,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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 20:30:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-13 20:30:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:30:07,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:07,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:07,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:30:07,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:07,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:07,622 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2022-12-13 20:30:07,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:07,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283979820] [2022-12-13 20:30:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:07,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:07,735 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 20:30:07,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:07,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283979820] [2022-12-13 20:30:07,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283979820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:07,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:07,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:30:07,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840083840] [2022-12-13 20:30:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:07,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:30:07,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:30:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:30:07,739 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 20:30:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:07,794 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-12-13 20:30:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:30:07,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Word has length 14 [2022-12-13 20:30:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:07,795 INFO L225 Difference]: With dead ends: 45 [2022-12-13 20:30:07,795 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 20:30:07,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:30:07,797 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:07,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:30:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 20:30:07,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2022-12-13 20:30:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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 20:30:07,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-13 20:30:07,803 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2022-12-13 20:30:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:07,804 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-13 20:30:07,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 20:30:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-13 20:30:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 20:30:07,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:07,805 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] [2022-12-13 20:30:07,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:30:07,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:07,806 INFO L85 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2022-12-13 20:30:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:07,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057371780] [2022-12-13 20:30:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:30:07,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:30:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:30:07,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:30:07,909 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:30:07,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 20:30:07,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:30:07,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 20:30:07,919 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:30:07,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:30:07 BoogieIcfgContainer [2022-12-13 20:30:07,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:30:07,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:30:07,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:30:07,936 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:30:07,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:07" (3/4) ... [2022-12-13 20:30:07,938 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:30:07,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77ebd39f-e41a-41ff-aee0-8d2c5c0bacbc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:30:07,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:30:07,966 INFO L158 Benchmark]: Toolchain (without parser) took 1084.05ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 99.3MB in the end (delta: 4.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,966 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:30:07,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.48ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 92.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.07ms. Allocated memory is still 144.7MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,967 INFO L158 Benchmark]: Boogie Preprocessor took 18.19ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,968 INFO L158 Benchmark]: RCFGBuilder took 239.46ms. Allocated memory is still 144.7MB. Free memory was 89.4MB in the beginning and 78.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,968 INFO L158 Benchmark]: TraceAbstraction took 606.37ms. Allocated memory is still 144.7MB. Free memory was 77.4MB in the beginning and 102.1MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:30:07,968 INFO L158 Benchmark]: Witness Printer took 29.57ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:30:07,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.48ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 92.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.07ms. Allocated memory is still 144.7MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.19ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.46ms. Allocated memory is still 144.7MB. Free memory was 89.4MB in the beginning and 78.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 606.37ms. Allocated memory is still 144.7MB. Free memory was 77.4MB in the beginning and 102.1MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.57ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 99.3MB 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 1 [L32] i=0 VAL [a={-2:0}, i=0, N=1, sum={4:0}] [L32] COND TRUE i