./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/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 ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 --- 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 12:44:22,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:44:22,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:44:23,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:44:23,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:44:23,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:44:23,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:44:23,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:44:23,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:44:23,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:44:23,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:44:23,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:44:23,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:44:23,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:44:23,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:44:23,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:44:23,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:44:23,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:44:23,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:44:23,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:44:23,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:44:23,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:44:23,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:44:23,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:44:23,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:44:23,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:44:23,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:44:23,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:44:23,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:44:23,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:44:23,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:44:23,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:44:23,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:44:23,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:44:23,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:44:23,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:44:23,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:44:23,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:44:23,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:44:23,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:44:23,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:44:23,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:44:23,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:44:23,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:44:23,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:44:23,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:44:23,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:44:23,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:44:23,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:44:23,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:44:23,070 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:44:23,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:44:23,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:44:23,081 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:44:23,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:44:23,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:44:23,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:44:23,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:44:23,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:44:23,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:44:23,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:44:23,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:44:23,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:44:23,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:44:23,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:44:23,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:44:23,085 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:44:23,086 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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 [2022-12-13 12:44:23,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:44:23,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:44:23,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:44:23,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:44:23,274 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:44:23,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2022-12-13 12:44:25,870 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:44:26,044 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:44:26,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2022-12-13 12:44:26,050 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/data/4a1359bfe/f0dd5528084948e19d5f66fd1f9e4e3e/FLAG474015670 [2022-12-13 12:44:26,064 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/data/4a1359bfe/f0dd5528084948e19d5f66fd1f9e4e3e [2022-12-13 12:44:26,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:44:26,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:44:26,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:44:26,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:44:26,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:44:26,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b0ab74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26, skipping insertion in model container [2022-12-13 12:44:26,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:44:26,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:44:26,234 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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2022-12-13 12:44:26,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:44:26,261 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:44:26,273 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_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2022-12-13 12:44:26,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:44:26,292 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:44:26,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26 WrapperNode [2022-12-13 12:44:26,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:44:26,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:44:26,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:44:26,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:44:26,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,326 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-13 12:44:26,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:44:26,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:44:26,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:44:26,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:44:26,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:44:26,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:44:26,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:44:26,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:44:26,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (1/1) ... [2022-12-13 12:44:26,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:44:26,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:26,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:44:26,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:44:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 12:44:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:44:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:44:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:44:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 12:44:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:44:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:44:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:44:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:44:26,455 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:44:26,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:44:26,559 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:44:26,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:44:26,564 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 12:44:26,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:44:26 BoogieIcfgContainer [2022-12-13 12:44:26,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:44:26,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:44:26,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:44:26,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:44:26,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:44:26" (1/3) ... [2022-12-13 12:44:26,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728a6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:44:26, skipping insertion in model container [2022-12-13 12:44:26,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:44:26" (2/3) ... [2022-12-13 12:44:26,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728a6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:44:26, skipping insertion in model container [2022-12-13 12:44:26,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:44:26" (3/3) ... [2022-12-13 12:44:26,572 INFO L112 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2022-12-13 12:44:26,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:44:26,586 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:44:26,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:44:26,627 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;@50023db3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:44:26,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 12:44:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 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 12:44:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 12:44:26,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:26,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:44:26,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:26,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-12-13 12:44:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:26,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759566342] [2022-12-13 12:44:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:26,826 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 12:44:26,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:26,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759566342] [2022-12-13 12:44:26,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759566342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:26,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:26,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:26,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555580964] [2022-12-13 12:44:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:26,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:44:26,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:26,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:44:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:44:26,867 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 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 12:44:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:26,923 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2022-12-13 12:44:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:26,925 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 12:44:26,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:26,933 INFO L225 Difference]: With dead ends: 83 [2022-12-13 12:44:26,933 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 12:44:26,936 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 12:44:26,939 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:26,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 87 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 12:44:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2022-12-13 12:44:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 29 states have internal predecessors, (35), 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 12:44:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-12-13 12:44:26,964 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2022-12-13 12:44:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:26,964 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-12-13 12:44:26,965 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 12:44:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-12-13 12:44:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 12:44:26,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:26,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:26,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:44:26,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:26,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:26,966 INFO L85 PathProgramCache]: Analyzing trace with hash 215923509, now seen corresponding path program 1 times [2022-12-13 12:44:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:26,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012376867] [2022-12-13 12:44:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:27,033 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 12:44:27,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:27,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012376867] [2022-12-13 12:44:27,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012376867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:27,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:27,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76818918] [2022-12-13 12:44:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:27,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:44:27,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:44:27,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:44:27,037 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 12:44:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:27,077 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-12-13 12:44:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-12-13 12:44:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:27,078 INFO L225 Difference]: With dead ends: 56 [2022-12-13 12:44:27,079 INFO L226 Difference]: Without dead ends: 44 [2022-12-13 12:44:27,079 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 12:44:27,080 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:27,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 62 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-13 12:44:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2022-12-13 12:44:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 34 states have internal predecessors, (41), 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 12:44:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-12-13 12:44:27,086 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 8 [2022-12-13 12:44:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:27,086 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-12-13 12:44:27,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 12:44:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-12-13 12:44:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:44:27,087 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:27,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 12:44:27,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:44:27,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:27,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:27,088 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-12-13 12:44:27,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:27,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30038549] [2022-12-13 12:44:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:27,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:27,196 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 12:44:27,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:27,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30038549] [2022-12-13 12:44:27,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30038549] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:27,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080021447] [2022-12-13 12:44:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:27,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:27,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:27,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:44:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:27,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:44:27,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:27,318 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 12:44:27,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:44:27,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080021447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:27,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:44:27,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 12:44:27,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132010771] [2022-12-13 12:44:27,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:27,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:44:27,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:27,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:44:27,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:44:27,320 INFO L87 Difference]: Start difference. First operand 35 states and 41 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 12:44:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:27,363 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2022-12-13 12:44:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:44:27,363 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 12:44:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:27,364 INFO L225 Difference]: With dead ends: 58 [2022-12-13 12:44:27,364 INFO L226 Difference]: Without dead ends: 57 [2022-12-13 12:44:27,365 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 12:44:27,366 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:27,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 153 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-13 12:44:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 34. [2022-12-13 12:44:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 33 states have internal predecessors, (40), 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 12:44:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-12-13 12:44:27,372 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 9 [2022-12-13 12:44:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:27,372 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-12-13 12:44:27,372 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 12:44:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-12-13 12:44:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:44:27,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:27,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 12:44:27,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:44:27,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:27,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:27,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-12-13 12:44:27,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:27,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766921052] [2022-12-13 12:44:27,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:27,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:44:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:27,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766921052] [2022-12-13 12:44:27,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766921052] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:27,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530031340] [2022-12-13 12:44:27,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:27,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:27,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:27,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:44:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:27,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:44:27,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:44:27,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:44:27,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530031340] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:27,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:27,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 12:44:27,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843174521] [2022-12-13 12:44:27,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:27,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:44:27,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:27,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:44:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:44:27,752 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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 12:44:27,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:27,819 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2022-12-13 12:44:27,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:44:27,820 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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 10 [2022-12-13 12:44:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:27,821 INFO L225 Difference]: With dead ends: 139 [2022-12-13 12:44:27,821 INFO L226 Difference]: Without dead ends: 138 [2022-12-13 12:44:27,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:44:27,822 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 144 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:27,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 178 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:27,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-13 12:44:27,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 46. [2022-12-13 12:44:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 45 states have internal predecessors, (55), 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 12:44:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-12-13 12:44:27,827 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 10 [2022-12-13 12:44:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:27,827 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-12-13 12:44:27,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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 12:44:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-13 12:44:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:44:27,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:27,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:27,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:44:28,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:28,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:28,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:28,030 INFO L85 PathProgramCache]: Analyzing trace with hash -965302825, now seen corresponding path program 1 times [2022-12-13 12:44:28,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:28,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863396269] [2022-12-13 12:44:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:28,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:28,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863396269] [2022-12-13 12:44:28,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863396269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:28,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:28,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633680438] [2022-12-13 12:44:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:28,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:44:28,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:44:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:44:28,099 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 12:44:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:28,126 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2022-12-13 12:44:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:44:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 13 [2022-12-13 12:44:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:28,131 INFO L225 Difference]: With dead ends: 69 [2022-12-13 12:44:28,131 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 12:44:28,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:44:28,134 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:28,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:28,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 12:44:28,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 12:44:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 45 states have internal predecessors, (54), 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 12:44:28,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-12-13 12:44:28,149 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 13 [2022-12-13 12:44:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:28,150 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-12-13 12:44:28,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 12:44:28,150 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-12-13 12:44:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 12:44:28,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:28,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:28,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:44:28,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash -64521645, now seen corresponding path program 1 times [2022-12-13 12:44:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:28,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444834864] [2022-12-13 12:44:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:28,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:28,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444834864] [2022-12-13 12:44:28,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444834864] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134177683] [2022-12-13 12:44:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:28,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:28,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:28,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:44:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:44:28,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:28,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:28,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134177683] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:28,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:28,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 12:44:28,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991125362] [2022-12-13 12:44:28,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:28,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 12:44:28,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 12:44:28,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:44:28,367 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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 12:44:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:28,408 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2022-12-13 12:44:28,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:44:28,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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) Word has length 17 [2022-12-13 12:44:28,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:28,409 INFO L225 Difference]: With dead ends: 69 [2022-12-13 12:44:28,409 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 12:44:28,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:44:28,410 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:28,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 96 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 12:44:28,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 12:44:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 45 states have internal predecessors, (52), 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 12:44:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-12-13 12:44:28,415 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-12-13 12:44:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:28,416 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-12-13 12:44:28,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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 12:44:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-12-13 12:44:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 12:44:28,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:28,417 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1] [2022-12-13 12:44:28,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:44:28,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:28,618 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:28,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1326689066, now seen corresponding path program 2 times [2022-12-13 12:44:28,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:28,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648712420] [2022-12-13 12:44:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:28,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:44:28,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:28,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648712420] [2022-12-13 12:44:28,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648712420] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:28,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692769188] [2022-12-13 12:44:28,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:44:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:28,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:28,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:44:28,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:44:28,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:44:28,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:44:28,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 12:44:28,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:28,995 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 12:44:28,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692769188] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:28,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:28,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-12-13 12:44:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534449122] [2022-12-13 12:44:28,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:28,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:44:28,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:28,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:44:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:44:28,997 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 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 12:44:29,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:29,136 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2022-12-13 12:44:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:44:29,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-13 12:44:29,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:29,138 INFO L225 Difference]: With dead ends: 120 [2022-12-13 12:44:29,138 INFO L226 Difference]: Without dead ends: 119 [2022-12-13 12:44:29,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-12-13 12:44:29,139 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 214 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:29,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 201 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:29,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-13 12:44:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 38. [2022-12-13 12:44:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 37 states have internal predecessors, (43), 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 12:44:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-12-13 12:44:29,146 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 22 [2022-12-13 12:44:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:29,146 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-12-13 12:44:29,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 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 12:44:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-12-13 12:44:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 12:44:29,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:29,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:29,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 12:44:29,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 12:44:29,348 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:29,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:29,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1897641653, now seen corresponding path program 2 times [2022-12-13 12:44:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:29,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427506176] [2022-12-13 12:44:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:29,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:29,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:29,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427506176] [2022-12-13 12:44:29,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427506176] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:29,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012980706] [2022-12-13 12:44:29,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:44:29,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:29,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:29,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:29,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 12:44:29,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:44:29,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:44:29,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:44:29,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:29,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:29,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012980706] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:29,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:29,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-12-13 12:44:29,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246572103] [2022-12-13 12:44:29,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:29,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 12:44:29,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:29,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 12:44:29,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2022-12-13 12:44:29,813 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 12:44:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:29,928 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-12-13 12:44:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:44:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 25 [2022-12-13 12:44:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:29,929 INFO L225 Difference]: With dead ends: 77 [2022-12-13 12:44:29,929 INFO L226 Difference]: Without dead ends: 54 [2022-12-13 12:44:29,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:44:29,931 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:29,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 179 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:44:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-13 12:44:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-13 12:44:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 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 12:44:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-12-13 12:44:29,939 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 25 [2022-12-13 12:44:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:29,939 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-12-13 12:44:29,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 12:44:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-12-13 12:44:29,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 12:44:29,941 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:29,941 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:29,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 12:44:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:30,142 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash -919699653, now seen corresponding path program 3 times [2022-12-13 12:44:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:30,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433605312] [2022-12-13 12:44:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:44:30,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:30,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433605312] [2022-12-13 12:44:30,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433605312] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:30,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248615050] [2022-12-13 12:44:30,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:44:30,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:30,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:30,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:30,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 12:44:30,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 12:44:30,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:44:30,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:44:30,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 12:44:30,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:44:30,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248615050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:30,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:44:30,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2022-12-13 12:44:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197159729] [2022-12-13 12:44:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:30,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:44:30,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:44:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-12-13 12:44:30,611 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 12:44:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:30,644 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-12-13 12:44:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:30,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 41 [2022-12-13 12:44:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:30,645 INFO L225 Difference]: With dead ends: 63 [2022-12-13 12:44:30,645 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 12:44:30,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:44:30,646 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:30,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 64 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 12:44:30,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2022-12-13 12:44:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 states have internal predecessors, (58), 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 12:44:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-12-13 12:44:30,652 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 41 [2022-12-13 12:44:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:30,652 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-12-13 12:44:30,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 12:44:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-12-13 12:44:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 12:44:30,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:30,653 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:30,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 12:44:30,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:30,854 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1554081898, now seen corresponding path program 1 times [2022-12-13 12:44:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:30,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336904470] [2022-12-13 12:44:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:30,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 12:44:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:30,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336904470] [2022-12-13 12:44:30,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336904470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:30,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:30,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355699746] [2022-12-13 12:44:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:30,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:44:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:44:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:44:30,922 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 12:44:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:30,947 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2022-12-13 12:44:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) Word has length 42 [2022-12-13 12:44:30,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:30,948 INFO L225 Difference]: With dead ends: 54 [2022-12-13 12:44:30,948 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 12:44:30,948 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 12:44:30,949 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 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 12:44:30,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 12:44:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2022-12-13 12:44:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 47 states have internal predecessors, (52), 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 12:44:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-12-13 12:44:30,954 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 42 [2022-12-13 12:44:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:30,954 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-12-13 12:44:30,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 12:44:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-12-13 12:44:30,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 12:44:30,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:30,955 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:30,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:44:30,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:30,956 INFO L85 PathProgramCache]: Analyzing trace with hash 884380021, now seen corresponding path program 1 times [2022-12-13 12:44:30,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:30,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922998316] [2022-12-13 12:44:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:30,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 12:44:31,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:31,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922998316] [2022-12-13 12:44:31,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922998316] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:31,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961380680] [2022-12-13 12:44:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:31,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:31,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:31,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:31,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 12:44:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:31,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:44:31,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 12:44:31,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:44:31,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961380680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:31,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:44:31,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-12-13 12:44:31,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280004997] [2022-12-13 12:44:31,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:31,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:44:31,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:31,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:44:31,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:44:31,143 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 12:44:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:31,151 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-12-13 12:44:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:44:31,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 43 [2022-12-13 12:44:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:31,152 INFO L225 Difference]: With dead ends: 70 [2022-12-13 12:44:31,152 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 12:44:31,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:44:31,153 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:31,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:31,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 12:44:31,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-12-13 12:44:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 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 12:44:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2022-12-13 12:44:31,159 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 43 [2022-12-13 12:44:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:31,160 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2022-12-13 12:44:31,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 12:44:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2022-12-13 12:44:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 12:44:31,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:31,161 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:31,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 12:44:31,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:31,363 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1277407031, now seen corresponding path program 1 times [2022-12-13 12:44:31,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:31,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158909214] [2022-12-13 12:44:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:31,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 12:44:31,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:31,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158909214] [2022-12-13 12:44:31,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158909214] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:31,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936196395] [2022-12-13 12:44:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:31,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:31,542 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:31,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 12:44:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:31,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 12:44:31,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:44:31,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:44:32,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936196395] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:32,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:32,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2022-12-13 12:44:32,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955224954] [2022-12-13 12:44:32,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:32,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-13 12:44:32,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:32,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-13 12:44:32,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 12:44:32,074 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 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 12:44:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:32,355 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2022-12-13 12:44:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 12:44:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 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 12:44:32,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:32,356 INFO L225 Difference]: With dead ends: 150 [2022-12-13 12:44:32,356 INFO L226 Difference]: Without dead ends: 122 [2022-12-13 12:44:32,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 12:44:32,357 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 91 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:32,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 117 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:44:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-13 12:44:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 100. [2022-12-13 12:44:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 99 states have internal predecessors, (109), 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 12:44:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2022-12-13 12:44:32,363 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 43 [2022-12-13 12:44:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:32,363 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2022-12-13 12:44:32,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 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 12:44:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2022-12-13 12:44:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 12:44:32,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:32,364 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:32,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 12:44:32,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 12:44:32,565 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:32,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash -162168787, now seen corresponding path program 1 times [2022-12-13 12:44:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:32,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656670114] [2022-12-13 12:44:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:32,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-12-13 12:44:32,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:32,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656670114] [2022-12-13 12:44:32,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656670114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:32,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:32,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256052925] [2022-12-13 12:44:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:32,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:44:32,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:44:32,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:44:32,741 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 12:44:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:32,768 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2022-12-13 12:44:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 80 [2022-12-13 12:44:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:32,769 INFO L225 Difference]: With dead ends: 114 [2022-12-13 12:44:32,769 INFO L226 Difference]: Without dead ends: 112 [2022-12-13 12:44:32,769 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 12:44:32,769 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:32,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-12-13 12:44:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-12-13 12:44:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.1090909090909091) internal successors, (122), 111 states have internal predecessors, (122), 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 12:44:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2022-12-13 12:44:32,775 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 80 [2022-12-13 12:44:32,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:32,775 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2022-12-13 12:44:32,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 12:44:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2022-12-13 12:44:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 12:44:32,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:32,776 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:32,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:44:32,776 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:32,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1973034152, now seen corresponding path program 1 times [2022-12-13 12:44:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:32,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690961380] [2022-12-13 12:44:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:32,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:33,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690961380] [2022-12-13 12:44:33,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690961380] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:33,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219017144] [2022-12-13 12:44:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:33,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:33,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:33,409 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:33,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 12:44:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:33,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 12:44:33,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:34,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:34,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219017144] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:34,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:34,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-12-13 12:44:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43030858] [2022-12-13 12:44:34,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:34,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-13 12:44:34,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-13 12:44:34,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2109, Invalid=6821, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 12:44:34,896 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 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 12:44:35,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:35,637 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2022-12-13 12:44:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-13 12:44:35,637 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 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 85 [2022-12-13 12:44:35,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:35,638 INFO L225 Difference]: With dead ends: 225 [2022-12-13 12:44:35,638 INFO L226 Difference]: Without dead ends: 176 [2022-12-13 12:44:35,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6114 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3836, Invalid=11664, Unknown=0, NotChecked=0, Total=15500 [2022-12-13 12:44:35,641 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 196 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:35,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 263 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:44:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-12-13 12:44:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-12-13 12:44:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0689655172413792) internal successors, (186), 175 states have internal predecessors, (186), 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 12:44:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2022-12-13 12:44:35,648 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 85 [2022-12-13 12:44:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:35,648 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2022-12-13 12:44:35,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 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 12:44:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2022-12-13 12:44:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 12:44:35,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:35,649 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:35,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 12:44:35,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 12:44:35,850 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash -211053464, now seen corresponding path program 2 times [2022-12-13 12:44:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205681017] [2022-12-13 12:44:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:38,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205681017] [2022-12-13 12:44:38,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205681017] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937241460] [2022-12-13 12:44:38,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:44:38,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:38,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:38,226 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:38,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 12:44:38,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:44:38,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:44:38,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-13 12:44:38,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:40,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:44:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:42,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937241460] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:44:42,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:44:42,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-12-13 12:44:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268696352] [2022-12-13 12:44:42,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:44:42,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-12-13 12:44:42,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-12-13 12:44:42,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8317, Invalid=27973, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 12:44:42,335 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 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 12:44:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:44,416 INFO L93 Difference]: Finished difference Result 353 states and 404 transitions. [2022-12-13 12:44:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-13 12:44:44,417 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 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 149 [2022-12-13 12:44:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:44,417 INFO L225 Difference]: With dead ends: 353 [2022-12-13 12:44:44,417 INFO L226 Difference]: Without dead ends: 304 [2022-12-13 12:44:44,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26034 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=15356, Invalid=48400, Unknown=0, NotChecked=0, Total=63756 [2022-12-13 12:44:44,422 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 600 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:44,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 243 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:44:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-13 12:44:44,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2022-12-13 12:44:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 302 states have (on average 1.0397350993377483) internal successors, (314), 303 states have internal predecessors, (314), 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 12:44:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 314 transitions. [2022-12-13 12:44:44,433 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 314 transitions. Word has length 149 [2022-12-13 12:44:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:44,433 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 314 transitions. [2022-12-13 12:44:44,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 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 12:44:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 314 transitions. [2022-12-13 12:44:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-12-13 12:44:44,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:44,436 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:44,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 12:44:44,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 12:44:44,639 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:44,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:44,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1204517912, now seen corresponding path program 3 times [2022-12-13 12:44:44,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:44,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620406218] [2022-12-13 12:44:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:44,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:44:51,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620406218] [2022-12-13 12:44:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620406218] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:44:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313996901] [2022-12-13 12:44:51,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:44:51,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:44:51,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:44:51,373 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:44:51,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 12:44:51,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 12:44:51,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:44:51,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:44:51,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:44:51,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7882 trivial. 0 not checked. [2022-12-13 12:44:51,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:44:51,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313996901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:51,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:44:51,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [129] total 132 [2022-12-13 12:44:51,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279542307] [2022-12-13 12:44:51,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:51,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:44:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:51,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:44:51,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4231, Invalid=13061, Unknown=0, NotChecked=0, Total=17292 [2022-12-13 12:44:51,682 INFO L87 Difference]: Start difference. First operand 304 states and 314 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:44:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:51,745 INFO L93 Difference]: Finished difference Result 304 states and 314 transitions. [2022-12-13 12:44:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:51,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 277 [2022-12-13 12:44:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:51,746 INFO L225 Difference]: With dead ends: 304 [2022-12-13 12:44:51,746 INFO L226 Difference]: Without dead ends: 303 [2022-12-13 12:44:51,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4281 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4236, Invalid=13320, Unknown=0, NotChecked=0, Total=17556 [2022-12-13 12:44:51,747 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:44:51,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-12-13 12:44:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-12-13 12:44:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.033112582781457) internal successors, (312), 302 states have internal predecessors, (312), 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 12:44:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 312 transitions. [2022-12-13 12:44:51,757 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 312 transitions. Word has length 277 [2022-12-13 12:44:51,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:51,758 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 312 transitions. [2022-12-13 12:44:51,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:44:51,758 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 312 transitions. [2022-12-13 12:44:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-13 12:44:51,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:51,760 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:51,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 12:44:51,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 12:44:51,961 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:44:51,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1314650493, now seen corresponding path program 1 times [2022-12-13 12:44:51,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:51,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484927934] [2022-12-13 12:44:51,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:51,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-12-13 12:44:52,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:52,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484927934] [2022-12-13 12:44:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484927934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:52,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:52,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:44:52,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112950263] [2022-12-13 12:44:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:52,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:44:52,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:44:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:44:52,329 INFO L87 Difference]: Start difference. First operand 303 states and 312 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 12:44:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:44:52,355 INFO L93 Difference]: Finished difference Result 303 states and 312 transitions. [2022-12-13 12:44:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:44:52,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) Word has length 278 [2022-12-13 12:44:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:44:52,356 INFO L225 Difference]: With dead ends: 303 [2022-12-13 12:44:52,356 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 12:44:52,357 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 12:44:52,358 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 39 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 12:44:52,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:44:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 12:44:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 12:44:52,358 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 12:44:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 12:44:52,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2022-12-13 12:44:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:52,359 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:44:52,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 12:44:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:44:52,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 12:44:52,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 12:44:52,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:44:52,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 12:44:53,372 INFO L899 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2022-12-13 12:44:53,372 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 41) the Hoare annotation is: (and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (< |ULTIMATE.start_init_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_init_~i~0#1|)) [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L35-6(lines 35 41) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_init_~size#1| 1000000)) (.cse1 (= |ULTIMATE.start_main_~flag~0#1| 0))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_init_~i~0#1|) (< |ULTIMATE.start_init_~i~0#1| 2147483647)) (and .cse0 (= |ULTIMATE.start_init_~i~0#1| 0) (<= 1000000 |ULTIMATE.start_init_~size#1|) .cse1))) [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 28 48) the Hoare annotation is: true [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 12:44:53,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L895 garLoopResultBuilder]: At program point L42-5(lines 42 46) the Hoare annotation is: (and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (< |ULTIMATE.start_init_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_init_~i~0#1|)) [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point L42-6(lines 42 46) no Hoare annotation was computed. [2022-12-13 12:44:53,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-13 12:44:53,376 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:44:53,378 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:44:53,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:44:53 BoogieIcfgContainer [2022-12-13 12:44:53,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:44:53,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:44:53,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:44:53,391 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:44:53,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:44:26" (3/4) ... [2022-12-13 12:44:53,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:44:53,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 12:44:53,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 12:44:53,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:44:53,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:44:53,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:44:53,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:44:53,434 INFO L158 Benchmark]: Toolchain (without parser) took 27366.38ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 139.5MB in the beginning and 267.9MB in the end (delta: -128.4MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,434 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:44:53,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.88ms. Allocated memory is still 167.8MB. Free memory was 139.3MB in the beginning and 128.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.25ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,435 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 125.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,435 INFO L158 Benchmark]: RCFGBuilder took 214.17ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 113.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,435 INFO L158 Benchmark]: TraceAbstraction took 26823.27ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 113.0MB in the beginning and 270.0MB in the end (delta: -157.0MB). Peak memory consumption was 219.7MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,435 INFO L158 Benchmark]: Witness Printer took 42.41ms. Allocated memory is still 377.5MB. Free memory was 270.0MB in the beginning and 267.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:44:53,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.88ms. Allocated memory is still 167.8MB. Free memory was 139.3MB in the beginning and 128.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.25ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 125.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.17ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 113.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26823.27ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 113.0MB in the beginning and 270.0MB in the end (delta: -157.0MB). Peak memory consumption was 219.7MB. Max. memory is 16.1GB. * Witness Printer took 42.41ms. Allocated memory is still 377.5MB. Free memory was 270.0MB in the beginning and 267.9MB 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: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: 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, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 26.8s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1457 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1457 mSDsluCounter, 1928 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1529 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1343 IncrementalHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 399 mSDtfsCounter, 1343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1504 GetRequests, 823 SyntacticMatches, 0 SemanticMatches, 681 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37384 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=15, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 261 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 78 NumberOfFragments, 58 HoareAnnotationTreeSize, 4 FomulaSimplifications, 7128 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5277 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 1868 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2184 ConstructedInterpolants, 0 QuantifiedInterpolants, 6878 SizeOfPredicates, 82 NumberOfNonLiveVariables, 2861 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 16850/32105 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 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((size <= 1000000 && flag == 0) && 1 <= i) && i < 2147483647) || (((size <= 1000000 && i == 0) && 1000000 <= size) && flag == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((size <= 1000000 && 0 <= i + 2147483648) && i < 2147483647) && 0 <= i - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((size <= 1000000 && 0 <= i + 2147483648) && i < 2147483647) && 0 <= i - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 12:44:53,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58f5739-c3fb-4ae3-8f33-16f950bfcab9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE