./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/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_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f607249994cf0ffcacc9c07747c47cb351729bf7053d82a0bf430a6b6707eef --- 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 15:57:29,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:57:29,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:57:30,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:57:30,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:57:30,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:57:30,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:57:30,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:57:30,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:57:30,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:57:30,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:57:30,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:57:30,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:57:30,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:57:30,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:57:30,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:57:30,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:57:30,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:57:30,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:57:30,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:57:30,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:57:30,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:57:30,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:57:30,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:57:30,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:57:30,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:57:30,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:57:30,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:57:30,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:57:30,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:57:30,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:57:30,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:57:30,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:57:30,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:57:30,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:57:30,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:57:30,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:57:30,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:57:30,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:57:30,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:57:30,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:57:30,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:57:30,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:57:30,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:57:30,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:57:30,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:57:30,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:57:30,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:57:30,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:57:30,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:57:30,065 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:57:30,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:57:30,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:57:30,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:57:30,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:57:30,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:57:30,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:57:30,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:57:30,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:57:30,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:57:30,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:57:30,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:57:30,069 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:57:30,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:57:30,069 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:57:30,069 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_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f607249994cf0ffcacc9c07747c47cb351729bf7053d82a0bf430a6b6707eef [2022-12-13 15:57:30,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:57:30,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:57:30,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:57:30,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:57:30,258 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:57:30,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-benchs/filter1.c [2022-12-13 15:57:32,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:57:32,888 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:57:32,889 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/sv-benchmarks/c/float-benchs/filter1.c [2022-12-13 15:57:32,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/data/6c473eb1e/324ea77f841942a991a78031aaa1f6a9/FLAGf5b2f30ce [2022-12-13 15:57:33,314 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/data/6c473eb1e/324ea77f841942a991a78031aaa1f6a9 [2022-12-13 15:57:33,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:57:33,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:57:33,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:57:33,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:57:33,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:57:33,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6147e3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33, skipping insertion in model container [2022-12-13 15:57:33,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:57:33,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:57:33,450 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_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/sv-benchmarks/c/float-benchs/filter1.c[627,640] [2022-12-13 15:57:33,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:57:33,468 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:57:33,477 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_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/sv-benchmarks/c/float-benchs/filter1.c[627,640] [2022-12-13 15:57:33,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:57:33,491 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:57:33,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33 WrapperNode [2022-12-13 15:57:33,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:57:33,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:57:33,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:57:33,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:57:33,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,514 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2022-12-13 15:57:33,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:57:33,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:57:33,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:57:33,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:57:33,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:57:33,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:57:33,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:57:33,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:57:33,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (1/1) ... [2022-12-13 15:57:33,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:57:33,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:57:33,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:57:33,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:57:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:57:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:57:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:57:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:57:33,639 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:57:33,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:57:33,725 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:57:33,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:57:33,730 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:57:33,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:57:33 BoogieIcfgContainer [2022-12-13 15:57:33,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:57:33,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:57:33,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:57:33,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:57:33,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:57:33" (1/3) ... [2022-12-13 15:57:33,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3164bb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:57:33, skipping insertion in model container [2022-12-13 15:57:33,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:57:33" (2/3) ... [2022-12-13 15:57:33,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3164bb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:57:33, skipping insertion in model container [2022-12-13 15:57:33,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:57:33" (3/3) ... [2022-12-13 15:57:33,738 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c [2022-12-13 15:57:33,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:57:33,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:57:33,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:57:33,789 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;@73c3fe8e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:57:33,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:57:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 16 states have (on average 1.4375) internal successors, (23), 18 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 15:57:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:57:33,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:57:33,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:57:33,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:57:33,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:57:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1473523597, now seen corresponding path program 1 times [2022-12-13 15:57:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:57:33,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789823902] [2022-12-13 15:57:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:57:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:57:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:57:33,908 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 15:57:33,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:57:33,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789823902] [2022-12-13 15:57:33,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789823902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:57:33,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:57:33,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:57:33,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748070053] [2022-12-13 15:57:33,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:57:33,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:57:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:57:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:57:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:57:33,937 INFO L87 Difference]: Start difference. First operand has 19 states, 16 states have (on average 1.4375) internal successors, (23), 18 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15:57:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:57:33,949 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-12-13 15:57:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:57:33,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-12-13 15:57:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:57:33,956 INFO L225 Difference]: With dead ends: 36 [2022-12-13 15:57:33,956 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:57:33,959 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 15:57:33,961 INFO L413 NwaCegarLoop]: 20 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, 20 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 15:57:33,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:57:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:57:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:57:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 15:57:33,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 15:57:33,985 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-13 15:57:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:57:33,986 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 15:57:33,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15:57:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 15:57:33,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:57:33,986 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:57:33,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:57:33,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:57:33,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:57:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:57:33,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2012097073, now seen corresponding path program 1 times [2022-12-13 15:57:33,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:57:33,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384055011] [2022-12-13 15:57:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:57:33,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:57:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:57:34,068 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 15:57:34,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:57:34,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384055011] [2022-12-13 15:57:34,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384055011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:57:34,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:57:34,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:57:34,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051824102] [2022-12-13 15:57:34,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:57:34,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:57:34,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:57:34,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:57:34,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:57:34,072 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 15:57:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:57:34,106 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-13 15:57:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:57:34,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-12-13 15:57:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:57:34,107 INFO L225 Difference]: With dead ends: 26 [2022-12-13 15:57:34,108 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 15:57:34,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 15:57:34,109 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:57:34,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:57:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 15:57:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 15:57:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 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 15:57:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-12-13 15:57:34,113 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 11 [2022-12-13 15:57:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:57:34,113 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-12-13 15:57:34,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 15:57:34,113 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-12-13 15:57:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 15:57:34,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:57:34,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:57:34,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:57:34,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:57:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:57:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash 865067806, now seen corresponding path program 1 times [2022-12-13 15:57:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:57:34,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91319667] [2022-12-13 15:57:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:57:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:57:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:57:34,281 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 15:57:34,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:57:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91319667] [2022-12-13 15:57:34,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91319667] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:57:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615441421] [2022-12-13 15:57:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:57:34,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:57:34,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:57:34,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:57:34,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:57:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:57:34,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:57:34,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:57:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:57:34,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:57:34,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615441421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:57:34,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:57:34,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 15:57:34,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579209447] [2022-12-13 15:57:34,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:57:34,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:57:34,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:57:34,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:57:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:57:34,421 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 15:57:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:57:34,455 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-12-13 15:57:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:57:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-12-13 15:57:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:57:34,457 INFO L225 Difference]: With dead ends: 24 [2022-12-13 15:57:34,457 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 15:57:34,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:57:34,459 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:57:34,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:57:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 15:57:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 15:57:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 15:57:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-12-13 15:57:34,464 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 21 [2022-12-13 15:57:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:57:34,464 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-12-13 15:57:34,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 15:57:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-12-13 15:57:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 15:57:34,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:57:34,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-12-13 15:57:34,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:57:34,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:57:34,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:57:34,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:57:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1047298280, now seen corresponding path program 1 times [2022-12-13 15:57:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:57:34,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273695892] [2022-12-13 15:57:34,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:57:34,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:57:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:57:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 15:57:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:57:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273695892] [2022-12-13 15:57:34,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273695892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:57:34,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:57:34,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:57:34,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623669852] [2022-12-13 15:57:34,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:57:34,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:57:34,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:57:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:57:34,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:57:34,862 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 15:57:34,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:57:34,879 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-12-13 15:57:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:57:34,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2022-12-13 15:57:34,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:57:34,880 INFO L225 Difference]: With dead ends: 23 [2022-12-13 15:57:34,880 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 15:57:34,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 15:57:34,882 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:57:34,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 18 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:57:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 15:57:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 15:57:34,884 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 15:57:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 15:57:34,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-12-13 15:57:34,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:57:34,884 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:57:34,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 15:57:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:57:34,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 15:57:34,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 15:57:34,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 15:57:34,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:57:34,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 15:57:34,911 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 38) no Hoare annotation was computed. [2022-12-13 15:57:34,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 15:57:34,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 15:57:34,911 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2022-12-13 15:57:34,911 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-12-13 15:57:34,912 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-12-13 15:57:34,912 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-12-13 15:57:34,912 INFO L895 garLoopResultBuilder]: At program point L17-3(line 17) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000000))) [2022-12-13 15:57:34,912 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 15:57:34,913 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 20 44) the Hoare annotation is: true [2022-12-13 15:57:34,913 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 15:57:34,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 15:57:34,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 15:57:34,913 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 42) no Hoare annotation was computed. [2022-12-13 15:57:34,913 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-12-13 15:57:34,914 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-12-13 15:57:34,914 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 42) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-12-13 15:57:34,914 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 28 42) no Hoare annotation was computed. [2022-12-13 15:57:34,914 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-12-13 15:57:34,918 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 15:57:34,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:57:34,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:57:34 BoogieIcfgContainer [2022-12-13 15:57:34,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:57:34,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:57:34,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:57:34,935 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:57:34,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:57:33" (3/4) ... [2022-12-13 15:57:34,939 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:57:34,948 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 15:57:34,949 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 15:57:34,949 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:57:34,949 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:57:34,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:57:34,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:57:34,980 INFO L158 Benchmark]: Toolchain (without parser) took 1661.08ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 105.1MB in the beginning and 121.8MB in the end (delta: -16.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-13 15:57:34,980 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:57:34,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 140.5MB. Free memory was 104.7MB in the beginning and 94.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:57:34,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.79ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 93.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:57:34,981 INFO L158 Benchmark]: Boogie Preprocessor took 17.42ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 92.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:57:34,982 INFO L158 Benchmark]: RCFGBuilder took 198.24ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 82.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:57:34,982 INFO L158 Benchmark]: TraceAbstraction took 1201.44ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 81.6MB in the beginning and 123.9MB in the end (delta: -42.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:57:34,982 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 180.4MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:57:34,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 140.5MB. Free memory was 104.7MB in the beginning and 94.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.79ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 93.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.42ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 92.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 198.24ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 82.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1201.44ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 81.6MB in the beginning and 123.9MB in the end (delta: -42.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.39ms. Allocated memory is still 180.4MB. Free memory was 123.9MB in the beginning and 121.8MB 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 56 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 8 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 2 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 19/28 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 2 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i == 0 || (1 <= i && i <= 1000000) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i RESULT: Ultimate proved your program to be correct! [2022-12-13 15:57:34,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad1a1fa5-70dc-4ca8-8c48-24b0d1e799d6/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