./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/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_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/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_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/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 42bdab47928922c9249a376933fe7b7a33d855d426cfe04eb271066ef5c44d0a --- 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 17:31:53,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:31:53,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:31:53,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:31:53,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:31:53,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:31:53,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:31:53,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:31:53,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:31:53,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:31:53,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:31:53,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:31:53,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:31:53,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:31:53,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:31:53,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:31:53,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:31:53,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:31:53,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:31:53,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:31:53,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:31:53,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:31:53,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:31:53,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:31:53,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:31:53,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:31:53,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:31:53,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:31:53,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:31:53,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:31:53,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:31:53,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:31:53,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:31:53,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:31:53,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:31:53,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:31:53,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:31:53,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:31:53,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:31:53,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:31:53,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:31:53,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:31:53,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:31:53,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:31:53,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:31:53,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:31:53,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:31:53,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:31:53,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:31:53,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:31:53,114 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:31:53,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:31:53,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:31:53,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:31:53,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:31:53,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:31:53,116 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:31:53,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:31:53,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:31:53,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:31:53,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:31:53,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:31:53,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:31:53,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:31:53,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:31:53,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:31:53,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:31:53,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:31:53,119 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:31:53,120 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_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42bdab47928922c9249a376933fe7b7a33d855d426cfe04eb271066ef5c44d0a [2022-12-13 17:31:53,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:31:53,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:31:53,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:31:53,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:31:53,331 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:31:53,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-acceleration/array_3-2.i [2022-12-13 17:31:55,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:31:56,065 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:31:56,066 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/sv-benchmarks/c/loop-acceleration/array_3-2.i [2022-12-13 17:31:56,070 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/data/f37b81351/547e805b3bb94d9da1f9a9e26c310bc1/FLAG9af3a4008 [2022-12-13 17:31:56,084 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/data/f37b81351/547e805b3bb94d9da1f9a9e26c310bc1 [2022-12-13 17:31:56,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:31:56,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:31:56,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:31:56,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:31:56,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:31:56,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccefc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56, skipping insertion in model container [2022-12-13 17:31:56,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:31:56,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:31:56,231 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_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/sv-benchmarks/c/loop-acceleration/array_3-2.i[809,822] [2022-12-13 17:31:56,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:31:56,247 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:31:56,256 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_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/sv-benchmarks/c/loop-acceleration/array_3-2.i[809,822] [2022-12-13 17:31:56,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:31:56,277 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:31:56,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56 WrapperNode [2022-12-13 17:31:56,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:31:56,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:31:56,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:31:56,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:31:56,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,305 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2022-12-13 17:31:56,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:31:56,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:31:56,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:31:56,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:31:56,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:31:56,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:31:56,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:31:56,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:31:56,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (1/1) ... [2022-12-13 17:31:56,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:31:56,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:56,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:31:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:31:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:31:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:31:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:31:56,432 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:31:56,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:31:56,529 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:31:56,534 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:31:56,534 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 17:31:56,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:31:56 BoogieIcfgContainer [2022-12-13 17:31:56,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:31:56,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:31:56,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:31:56,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:31:56,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:31:56" (1/3) ... [2022-12-13 17:31:56,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1669daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:31:56, skipping insertion in model container [2022-12-13 17:31:56,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:31:56" (2/3) ... [2022-12-13 17:31:56,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1669daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:31:56, skipping insertion in model container [2022-12-13 17:31:56,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:31:56" (3/3) ... [2022-12-13 17:31:56,545 INFO L112 eAbstractionObserver]: Analyzing ICFG array_3-2.i [2022-12-13 17:31:56,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:31:56,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:31:56,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:31:56,617 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;@314a1eef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:31:56,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 17:31:56,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 23 states have internal predecessors, (29), 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 17:31:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 17:31:56,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:56,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:31:56,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:56,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-12-13 17:31:56,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:56,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054809768] [2022-12-13 17:31:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:56,795 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 17:31:56,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:56,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054809768] [2022-12-13 17:31:56,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054809768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:56,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:56,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:31:56,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383169941] [2022-12-13 17:31:56,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:56,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:31:56,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:31:56,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:31:56,830 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 23 states have internal predecessors, (29), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 17:31:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:56,904 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-12-13 17:31:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:31:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-12-13 17:31:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:56,912 INFO L225 Difference]: With dead ends: 61 [2022-12-13 17:31:56,912 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 17:31:56,914 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 17:31:56,916 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:56,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 48 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:31:56,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 17:31:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2022-12-13 17:31:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 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 17:31:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-12-13 17:31:56,941 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 5 [2022-12-13 17:31:56,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:56,941 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-12-13 17:31:56,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 17:31:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-12-13 17:31:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 17:31:56,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:56,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 17:31:56,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:31:56,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:56,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:56,943 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-12-13 17:31:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:56,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955954698] [2022-12-13 17:31:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:57,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955954698] [2022-12-13 17:31:57,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955954698] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:57,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314872589] [2022-12-13 17:31:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:57,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:57,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:57,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:31:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:57,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:31:57,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:57,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:31:57,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314872589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:57,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:31:57,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 17:31:57,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328791028] [2022-12-13 17:31:57,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:57,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:31:57,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:57,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:31:57,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:31:57,140 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:31:57,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:57,189 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-12-13 17:31:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:31:57,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 17:31:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:57,190 INFO L225 Difference]: With dead ends: 29 [2022-12-13 17:31:57,190 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 17:31:57,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 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 17:31:57,192 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:57,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:31:57,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 17:31:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2022-12-13 17:31:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 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 17:31:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-12-13 17:31:57,198 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2022-12-13 17:31:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:57,198 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-12-13 17:31:57,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:31:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-12-13 17:31:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 17:31:57,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:57,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 17:31:57,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:31:57,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:57,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-12-13 17:31:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:57,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186440945] [2022-12-13 17:31:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 17:31:57,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:57,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186440945] [2022-12-13 17:31:57,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186440945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:57,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:57,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:31:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380260199] [2022-12-13 17:31:57,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:57,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:31:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:31:57,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:31:57,551 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:31:57,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:57,604 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-13 17:31:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:31:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 17:31:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:57,605 INFO L225 Difference]: With dead ends: 28 [2022-12-13 17:31:57,605 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 17:31:57,605 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 17:31:57,606 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:57,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:31:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 17:31:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2022-12-13 17:31:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 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 17:31:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-13 17:31:57,610 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2022-12-13 17:31:57,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:57,610 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-13 17:31:57,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:31:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-13 17:31:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 17:31:57,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:57,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:57,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:31:57,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:57,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1708915218, now seen corresponding path program 1 times [2022-12-13 17:31:57,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:57,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901108931] [2022-12-13 17:31:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:57,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:57,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901108931] [2022-12-13 17:31:57,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901108931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:57,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282282410] [2022-12-13 17:31:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:57,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:57,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:57,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:57,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:31:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:57,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:31:57,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:57,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:31:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:57,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282282410] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:31:57,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:31:57,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 17:31:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844737226] [2022-12-13 17:31:57,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:31:57,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:31:57,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:31:57,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:31:57,756 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 17:31:57,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:57,804 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-12-13 17:31:57,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:31:57,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 17:31:57,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:57,805 INFO L225 Difference]: With dead ends: 41 [2022-12-13 17:31:57,805 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 17:31:57,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:31:57,807 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:57,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 41 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:31:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 17:31:57,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2022-12-13 17:31:57,810 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 17:31:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-12-13 17:31:57,810 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 13 [2022-12-13 17:31:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:57,811 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-12-13 17:31:57,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 17:31:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-12-13 17:31:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 17:31:57,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:57,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:57,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 17:31:58,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:58,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:58,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1607405798, now seen corresponding path program 2 times [2022-12-13 17:31:58,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:58,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52217037] [2022-12-13 17:31:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 17:31:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:58,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52217037] [2022-12-13 17:31:58,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52217037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:58,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:58,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:31:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295964660] [2022-12-13 17:31:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:58,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:31:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:31:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:31:58,198 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:31:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:58,227 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-12-13 17:31:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:31:58,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:31:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:58,228 INFO L225 Difference]: With dead ends: 32 [2022-12-13 17:31:58,228 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 17:31:58,229 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 17:31:58,230 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:58,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:31:58,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 17:31:58,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-13 17:31:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 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 17:31:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-12-13 17:31:58,236 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2022-12-13 17:31:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:58,236 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-12-13 17:31:58,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:31:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-12-13 17:31:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 17:31:58,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:58,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:58,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:31:58,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:58,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:58,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1868053311, now seen corresponding path program 1 times [2022-12-13 17:31:58,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:58,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320973702] [2022-12-13 17:31:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:58,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:58,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:58,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320973702] [2022-12-13 17:31:58,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320973702] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:58,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613475299] [2022-12-13 17:31:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:58,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:58,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:58,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:58,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:31:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:58,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 17:31:58,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:58,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:31:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:58,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613475299] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:31:58,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:31:58,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 17:31:58,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381354364] [2022-12-13 17:31:58,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:31:58,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 17:31:58,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 17:31:58,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:31:58,535 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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 17:31:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:58,646 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2022-12-13 17:31:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:31:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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 27 [2022-12-13 17:31:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:58,647 INFO L225 Difference]: With dead ends: 61 [2022-12-13 17:31:58,647 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 17:31:58,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:31:58,648 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:58,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 62 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:31:58,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 17:31:58,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 17:31:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 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 17:31:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-12-13 17:31:58,652 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 27 [2022-12-13 17:31:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:58,652 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-12-13 17:31:58,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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 17:31:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-12-13 17:31:58,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 17:31:58,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:58,653 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:58,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:31:58,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 17:31:58,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:31:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1072477487, now seen corresponding path program 2 times [2022-12-13 17:31:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:58,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619988115] [2022-12-13 17:31:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:59,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619988115] [2022-12-13 17:31:59,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619988115] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773521304] [2022-12-13 17:31:59,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:31:59,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:59,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:59,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:59,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:31:59,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 17:31:59,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:31:59,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 17:31:59,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:59,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:31:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:31:59,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773521304] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:31:59,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:31:59,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-12-13 17:31:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112605409] [2022-12-13 17:31:59,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:31:59,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 17:31:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:59,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 17:31:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 17:31:59,523 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 17:31:59,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:31:59,777 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2022-12-13 17:31:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 17:31:59,778 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 43 [2022-12-13 17:31:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:31:59,779 INFO L225 Difference]: With dead ends: 93 [2022-12-13 17:31:59,780 INFO L226 Difference]: Without dead ends: 78 [2022-12-13 17:31:59,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 17:31:59,782 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 92 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:31:59,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 50 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:31:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-13 17:31:59,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-12-13 17:31:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0657894736842106) internal successors, (81), 77 states have internal predecessors, (81), 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 17:31:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-12-13 17:31:59,793 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 43 [2022-12-13 17:31:59,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:31:59,793 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-12-13 17:31:59,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 17:31:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-12-13 17:31:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 17:31:59,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:31:59,797 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:59,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:31:59,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:59,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:32:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1000339185, now seen corresponding path program 3 times [2022-12-13 17:32:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:00,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571491789] [2022-12-13 17:32:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:00,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:32:00,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:00,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571491789] [2022-12-13 17:32:00,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571491789] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:32:00,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164046682] [2022-12-13 17:32:00,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:32:00,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:00,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:32:00,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:32:00,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:32:00,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 17:32:00,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:32:00,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:32:00,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:32:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-13 17:32:00,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:32:00,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164046682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:00,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:32:00,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2022-12-13 17:32:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787086036] [2022-12-13 17:32:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:00,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:32:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:00,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:32:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 17:32:00,854 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 17:32:00,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:00,886 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2022-12-13 17:32:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:32:00,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 75 [2022-12-13 17:32:00,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:00,887 INFO L225 Difference]: With dead ends: 78 [2022-12-13 17:32:00,887 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 17:32:00,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 17:32:00,888 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:32:00,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 17:32:00,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-13 17:32:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.0526315789473684) internal successors, (80), 76 states have internal predecessors, (80), 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 17:32:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2022-12-13 17:32:00,895 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 75 [2022-12-13 17:32:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:00,895 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2022-12-13 17:32:00,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 17:32:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2022-12-13 17:32:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 17:32:00,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:00,897 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 17:32:00,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:32:01,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:01,098 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:32:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -945743592, now seen corresponding path program 1 times [2022-12-13 17:32:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:01,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569972462] [2022-12-13 17:32:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-12-13 17:32:01,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:01,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569972462] [2022-12-13 17:32:01,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569972462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:01,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:32:01,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:32:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520813885] [2022-12-13 17:32:01,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:01,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:32:01,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:01,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:32:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:32:01,308 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:01,334 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2022-12-13 17:32:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:32:01,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-12-13 17:32:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:01,335 INFO L225 Difference]: With dead ends: 78 [2022-12-13 17:32:01,335 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 17:32:01,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:32:01,336 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:32:01,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 17:32:01,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 17:32:01,337 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 17:32:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 17:32:01,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-12-13 17:32:01,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:01,337 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 17:32:01,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:01,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 17:32:01,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 17:32:01,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 17:32:01,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 17:32:01,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 17:32:01,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 17:32:01,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:32:01,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 17:32:01,359 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-12-13 17:32:01,360 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 29) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 27) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point L26-5(lines 26 27) no Hoare annotation was computed. [2022-12-13 17:32:01,361 INFO L899 garLoopResultBuilder]: For program point L26-6(line 26) no Hoare annotation was computed. [2022-12-13 17:32:01,362 INFO L899 garLoopResultBuilder]: For program point L26-7(line 26) no Hoare annotation was computed. [2022-12-13 17:32:01,362 INFO L895 garLoopResultBuilder]: At program point L26-8(lines 26 27) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-12-13 17:32:01,362 INFO L899 garLoopResultBuilder]: For program point L26-9(lines 26 27) no Hoare annotation was computed. [2022-12-13 17:32:01,362 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-12-13 17:32:01,362 INFO L902 garLoopResultBuilder]: At program point L14-2(lines 13 18) the Hoare annotation is: true [2022-12-13 17:32:01,365 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-12-13 17:32:01,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:32:01,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:32:01 BoogieIcfgContainer [2022-12-13 17:32:01,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:32:01,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:32:01,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:32:01,379 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:32:01,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:31:56" (3/4) ... [2022-12-13 17:32:01,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:32:01,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 17:32:01,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:32:01,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 17:32:01,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:32:01,411 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:32:01,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:32:01,412 INFO L158 Benchmark]: Toolchain (without parser) took 5323.59ms. Allocated memory was 115.3MB in the beginning and 188.7MB in the end (delta: 73.4MB). Free memory was 66.5MB in the beginning and 56.1MB in the end (delta: 10.4MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,412 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:32:01,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.90ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 66.2MB in the beginning and 130.1MB in the end (delta: -63.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.03ms. Allocated memory is still 157.3MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,413 INFO L158 Benchmark]: Boogie Preprocessor took 14.70ms. Allocated memory is still 157.3MB. Free memory was 128.0MB in the beginning and 127.2MB in the end (delta: 851.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:32:01,413 INFO L158 Benchmark]: RCFGBuilder took 215.23ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,414 INFO L158 Benchmark]: TraceAbstraction took 4839.76ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 116.3MB in the beginning and 58.2MB in the end (delta: 58.1MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,414 INFO L158 Benchmark]: Witness Printer took 32.65ms. Allocated memory is still 188.7MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:32:01,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.90ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 66.2MB in the beginning and 130.1MB in the end (delta: -63.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.03ms. Allocated memory is still 157.3MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.70ms. Allocated memory is still 157.3MB. Free memory was 128.0MB in the beginning and 127.2MB in the end (delta: 851.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 215.23ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4839.76ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 116.3MB in the beginning and 58.2MB in the end (delta: 58.1MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. * Witness Printer took 32.65ms. Allocated memory is still 188.7MB. Free memory was 58.2MB in the beginning and 56.1MB 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 219 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 93 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=7, InterpolantAutomatonStates: 80, 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, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 22 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 135 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 446 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 512 ConstructedInterpolants, 0 QuantifiedInterpolants, 1003 SizeOfPredicates, 14 NumberOfNonLiveVariables, 438 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 938/1697 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 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 17:32:01,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c38cec3-71ed-4638-a401-a10ca0c3c0d9/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