./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro --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 0b12653f6fa3db43ddf9a1a43787bd2cd7fe91d3e4035502f1ea10705d9c83a6 --- 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-8393723 [2022-11-18 19:46:36,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:46:36,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:46:36,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:46:36,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:46:36,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:46:36,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:46:36,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:46:36,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:46:36,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:46:36,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:46:36,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:46:36,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:46:36,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:46:36,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:46:36,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:46:36,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:46:36,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:46:36,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:46:36,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:46:36,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:46:36,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:46:36,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:46:36,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:46:36,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:46:36,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:46:36,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:46:36,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:46:36,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:46:36,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:46:36,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:46:36,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:46:36,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:46:36,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:46:36,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:46:36,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:46:36,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:46:36,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:46:36,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:46:36,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:46:36,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:46:36,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:46:36,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:46:36,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:46:36,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:46:36,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:46:36,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:46:36,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:46:36,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:46:36,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:46:36,281 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:46:36,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:46:36,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:46:36,282 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:46:36,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:46:36,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:46:36,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:46:36,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:46:36,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:46:36,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:46:36,283 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:46:36,284 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:46:36,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:46:36,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:46:36,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:46:36,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:46:36,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:46:36,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:46:36,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:36,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:46:36,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:46:36,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:46:36,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b12653f6fa3db43ddf9a1a43787bd2cd7fe91d3e4035502f1ea10705d9c83a6 [2022-11-18 19:46:36,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:46:36,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:46:36,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:46:36,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:46:36,650 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:46:36,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2022-11-18 19:46:36,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/data/5dbb00526/7aff63e17f0044489588b95098eddd39/FLAG8a6f16d8e [2022-11-18 19:46:37,326 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:46:37,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2022-11-18 19:46:37,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/data/5dbb00526/7aff63e17f0044489588b95098eddd39/FLAG8a6f16d8e [2022-11-18 19:46:37,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/data/5dbb00526/7aff63e17f0044489588b95098eddd39 [2022-11-18 19:46:37,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:46:37,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:46:37,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:37,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:46:37,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:46:37,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:37,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6205216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37, skipping insertion in model container [2022-11-18 19:46:37,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:37,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:46:37,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:46:37,952 WARN L234 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_f36bf41e-2063-40b8-9924-4201b5725d27/sv-benchmarks/c/recursive-simple/sum_20x0-1.c[481,494] [2022-11-18 19:46:37,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:37,962 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:46:37,979 WARN L234 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_f36bf41e-2063-40b8-9924-4201b5725d27/sv-benchmarks/c/recursive-simple/sum_20x0-1.c[481,494] [2022-11-18 19:46:37,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:37,994 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:46:37,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37 WrapperNode [2022-11-18 19:46:37,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:37,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:37,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:46:37,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:46:38,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,031 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-18 19:46:38,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:38,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:46:38,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:46:38,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:46:38,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:46:38,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:46:38,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:46:38,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:46:38,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (1/1) ... [2022-11-18 19:46:38,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:38,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:38,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:46:38,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:46:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:46:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:46:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:46:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-18 19:46:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-18 19:46:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:46:38,250 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:46:38,253 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:46:38,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:46:38,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:46:38,478 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:46:38,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:38 BoogieIcfgContainer [2022-11-18 19:46:38,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:46:38,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:46:38,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:46:38,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:46:38,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:46:37" (1/3) ... [2022-11-18 19:46:38,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755904eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:38, skipping insertion in model container [2022-11-18 19:46:38,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:37" (2/3) ... [2022-11-18 19:46:38,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755904eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:38, skipping insertion in model container [2022-11-18 19:46:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:38" (3/3) ... [2022-11-18 19:46:38,495 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c [2022-11-18 19:46:38,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:46:38,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:46:38,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:38,620 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;@3942369d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:38,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:46:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:46:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:46:38,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:38,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:46:38,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:38,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-18 19:46:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:38,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239467268] [2022-11-18 19:46:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:39,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239467268] [2022-11-18 19:46:39,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239467268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:39,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:39,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:46:39,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117278807] [2022-11-18 19:46:39,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:39,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:46:39,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:46:39,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:46:39,162 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:39,322 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-18 19:46:39,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:39,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 19:46:39,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:39,335 INFO L225 Difference]: With dead ends: 54 [2022-11-18 19:46:39,335 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 19:46:39,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:46:39,343 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:39,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 72 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:39,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 19:46:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-11-18 19:46:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:46:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-18 19:46:39,391 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2022-11-18 19:46:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:39,391 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-18 19:46:39,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-18 19:46:39,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:46:39,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:39,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:46:39,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:46:39,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-11-18 19:46:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:39,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692291563] [2022-11-18 19:46:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:39,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:39,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692291563] [2022-11-18 19:46:39,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692291563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:39,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:39,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:39,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109035373] [2022-11-18 19:46:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:39,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:39,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:39,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:39,462 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:39,532 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-18 19:46:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 19:46:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:39,534 INFO L225 Difference]: With dead ends: 38 [2022-11-18 19:46:39,534 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:46:39,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:46:39,536 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:39,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:46:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-18 19:46:39,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.4) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:46:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-18 19:46:39,550 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2022-11-18 19:46:39,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:39,551 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 19:46:39,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,551 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-18 19:46:39,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:46:39,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:39,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:39,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:46:39,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:39,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:39,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-11-18 19:46:39,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:39,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229602857] [2022-11-18 19:46:39,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:39,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229602857] [2022-11-18 19:46:39,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229602857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:39,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:39,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:46:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681479688] [2022-11-18 19:46:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:39,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:39,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:39,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:39,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:39,681 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:39,797 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2022-11-18 19:46:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:39,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 19:46:39,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:39,801 INFO L225 Difference]: With dead ends: 46 [2022-11-18 19:46:39,801 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 19:46:39,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:46:39,803 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:39,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 19:46:39,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 19:46:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:46:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-18 19:46:39,815 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 7 [2022-11-18 19:46:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:39,816 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-18 19:46:39,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:39,816 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-18 19:46:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:46:39,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:39,817 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:39,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:46:39,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-18 19:46:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:39,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112308799] [2022-11-18 19:46:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:39,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:39,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112308799] [2022-11-18 19:46:39,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112308799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:39,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221718042] [2022-11-18 19:46:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:39,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:39,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:39,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:40,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:46:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:40,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:46:40,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:40,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:40,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221718042] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:40,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:40,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-11-18 19:46:40,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530991098] [2022-11-18 19:46:40,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:40,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:46:40,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:46:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:46:40,267 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:40,667 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-11-18 19:46:40,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:46:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:46:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:40,669 INFO L225 Difference]: With dead ends: 87 [2022-11-18 19:46:40,670 INFO L226 Difference]: Without dead ends: 69 [2022-11-18 19:46:40,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:46:40,672 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 151 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:40,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 205 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:46:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-18 19:46:40,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-18 19:46:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 50 states have internal predecessors, (56), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:46:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-18 19:46:40,686 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 13 [2022-11-18 19:46:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:40,686 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-18 19:46:40,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:40,687 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-18 19:46:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:46:40,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:40,688 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:40,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:40,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:40,894 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:40,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:40,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-18 19:46:40,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:40,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309721431] [2022-11-18 19:46:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:41,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:41,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309721431] [2022-11-18 19:46:41,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309721431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262436188] [2022-11-18 19:46:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:41,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:41,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:41,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:41,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:46:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:41,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:46:41,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:41,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:41,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262436188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:41,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:41,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-18 19:46:41,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379742565] [2022-11-18 19:46:41,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:41,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:46:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:41,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:46:41,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:46:41,201 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:41,279 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-18 19:46:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:46:41,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:46:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:41,280 INFO L225 Difference]: With dead ends: 62 [2022-11-18 19:46:41,281 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 19:46:41,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:46:41,282 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:41,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 44 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 19:46:41,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-18 19:46:41,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 49 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:46:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2022-11-18 19:46:41,292 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 16 [2022-11-18 19:46:41,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:41,293 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2022-11-18 19:46:41,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2022-11-18 19:46:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 19:46:41,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:41,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 19:46:41,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:41,517 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:41,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:41,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1760820046, now seen corresponding path program 1 times [2022-11-18 19:46:41,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:41,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750706781] [2022-11-18 19:46:41,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:41,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:41,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:41,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750706781] [2022-11-18 19:46:41,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750706781] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:41,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791965671] [2022-11-18 19:46:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:41,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:41,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:41,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:41,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:46:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:41,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:46:41,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:41,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:42,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791965671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:42,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:42,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-18 19:46:42,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27264286] [2022-11-18 19:46:42,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:42,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 19:46:42,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:42,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 19:46:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:46:42,032 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:42,271 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-18 19:46:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:46:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 19:46:42,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:42,281 INFO L225 Difference]: With dead ends: 92 [2022-11-18 19:46:42,281 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 19:46:42,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:46:42,287 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:42,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 150 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 19:46:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2022-11-18 19:46:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 69 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:46:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2022-11-18 19:46:42,320 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 22 [2022-11-18 19:46:42,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:42,321 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2022-11-18 19:46:42,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2022-11-18 19:46:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 19:46:42,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:42,323 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-18 19:46:42,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:42,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:42,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:42,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1208760848, now seen corresponding path program 2 times [2022-11-18 19:46:42,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:42,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112863354] [2022-11-18 19:46:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:42,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112863354] [2022-11-18 19:46:42,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112863354] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584736822] [2022-11-18 19:46:42,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:42,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:42,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:42,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:46:42,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:42,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:42,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:46:42,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:43,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:43,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584736822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:43,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:43,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-11-18 19:46:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404079499] [2022-11-18 19:46:43,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:43,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-18 19:46:43,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:43,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-18 19:46:43,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:46:43,605 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:44,365 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2022-11-18 19:46:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:46:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-18 19:46:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:44,367 INFO L225 Difference]: With dead ends: 159 [2022-11-18 19:46:44,367 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 19:46:44,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=480, Invalid=2172, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 19:46:44,370 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 382 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:44,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 409 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:46:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 19:46:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2022-11-18 19:46:44,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 94 states have (on average 1.0851063829787233) internal successors, (102), 97 states have internal predecessors, (102), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:46:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2022-11-18 19:46:44,392 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 34 [2022-11-18 19:46:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:44,392 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2022-11-18 19:46:44,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2022-11-18 19:46:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:46:44,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:44,394 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-18 19:46:44,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:44,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:46:44,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:44,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1182445582, now seen corresponding path program 2 times [2022-11-18 19:46:44,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:44,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206892538] [2022-11-18 19:46:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:44,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:44,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:44,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206892538] [2022-11-18 19:46:44,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206892538] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190673862] [2022-11-18 19:46:44,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:44,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:44,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:44,934 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:44,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:46:45,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:45,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:46:45,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:45,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:45,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190673862] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:45,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:45,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2022-11-18 19:46:45,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184146856] [2022-11-18 19:46:45,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:45,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 19:46:45,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:45,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 19:46:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 19:46:45,536 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:46,139 INFO L93 Difference]: Finished difference Result 180 states and 193 transitions. [2022-11-18 19:46:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 19:46:46,140 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-18 19:46:46,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:46,141 INFO L225 Difference]: With dead ends: 180 [2022-11-18 19:46:46,141 INFO L226 Difference]: Without dead ends: 179 [2022-11-18 19:46:46,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1741, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 19:46:46,144 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:46,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 364 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:46:46,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-18 19:46:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2022-11-18 19:46:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.1194029850746268) internal successors, (150), 137 states have internal predecessors, (150), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:46:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 182 transitions. [2022-11-18 19:46:46,163 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 182 transitions. Word has length 50 [2022-11-18 19:46:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:46,164 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 182 transitions. [2022-11-18 19:46:46,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 182 transitions. [2022-11-18 19:46:46,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-18 19:46:46,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:46,166 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-18 19:46:46,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:46,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:46,384 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:46,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash -448735504, now seen corresponding path program 3 times [2022-11-18 19:46:46,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:46,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892392551] [2022-11-18 19:46:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:46,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:47,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:47,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892392551] [2022-11-18 19:46:47,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892392551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:47,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996451101] [2022-11-18 19:46:47,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:46:47,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:47,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:47,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:47,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:46:47,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:46:47,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:47,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:46:47,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 19:46:47,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:47,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996451101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:47,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:47,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-11-18 19:46:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735619663] [2022-11-18 19:46:47,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:47,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:46:47,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:47,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:46:47,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:46:47,184 INFO L87 Difference]: Start difference. First operand 169 states and 182 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:47,291 INFO L93 Difference]: Finished difference Result 179 states and 193 transitions. [2022-11-18 19:46:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:46:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-18 19:46:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:47,294 INFO L225 Difference]: With dead ends: 179 [2022-11-18 19:46:47,294 INFO L226 Difference]: Without dead ends: 178 [2022-11-18 19:46:47,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=838, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:46:47,296 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:47,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-18 19:46:47,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2022-11-18 19:46:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 134 states have (on average 1.0820895522388059) internal successors, (145), 136 states have internal predecessors, (145), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:46:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2022-11-18 19:46:47,332 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 76 [2022-11-18 19:46:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:47,334 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2022-11-18 19:46:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2022-11-18 19:46:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 19:46:47,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:47,344 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:47,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:47,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:47,552 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:47,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1025898680, now seen corresponding path program 1 times [2022-11-18 19:46:47,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:47,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196306832] [2022-11-18 19:46:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:48,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:48,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196306832] [2022-11-18 19:46:48,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196306832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:48,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045967626] [2022-11-18 19:46:48,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:48,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:48,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:48,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:48,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:46:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:48,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:46:48,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:48,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:49,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045967626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:49,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:49,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 44 [2022-11-18 19:46:49,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473465187] [2022-11-18 19:46:49,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:49,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-18 19:46:49,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:49,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-18 19:46:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=466, Invalid=1426, Unknown=0, NotChecked=0, Total=1892 [2022-11-18 19:46:49,053 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 44 states, 42 states have (on average 2.9047619047619047) internal successors, (122), 24 states have internal predecessors, (122), 21 states have call successors, (21), 20 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:49,947 INFO L93 Difference]: Finished difference Result 287 states and 307 transitions. [2022-11-18 19:46:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-18 19:46:49,948 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 42 states have (on average 2.9047619047619047) internal successors, (122), 24 states have internal predecessors, (122), 21 states have call successors, (21), 20 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-18 19:46:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:49,954 INFO L225 Difference]: With dead ends: 287 [2022-11-18 19:46:49,954 INFO L226 Difference]: Without dead ends: 228 [2022-11-18 19:46:49,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 131 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1116, Invalid=2916, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 19:46:49,958 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 599 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:49,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 496 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:46:49,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-18 19:46:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 220. [2022-11-18 19:46:49,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 174 states have (on average 1.0517241379310345) internal successors, (183), 176 states have internal predecessors, (183), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-18 19:46:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 227 transitions. [2022-11-18 19:46:49,978 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 227 transitions. Word has length 77 [2022-11-18 19:46:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:49,981 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 227 transitions. [2022-11-18 19:46:49,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 42 states have (on average 2.9047619047619047) internal successors, (122), 24 states have internal predecessors, (122), 21 states have call successors, (21), 20 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 227 transitions. [2022-11-18 19:46:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-18 19:46:49,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:49,987 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-18 19:46:49,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:50,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:46:50,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:50,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1081620878, now seen corresponding path program 3 times [2022-11-18 19:46:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:50,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726769093] [2022-11-18 19:46:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:51,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:51,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726769093] [2022-11-18 19:46:51,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726769093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:51,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709438128] [2022-11-18 19:46:51,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:46:51,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:51,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:51,107 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:51,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:46:51,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-18 19:46:51,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:51,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 19:46:51,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:51,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:52,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709438128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:52,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:52,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 66 [2022-11-18 19:46:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555459159] [2022-11-18 19:46:52,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:52,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-18 19:46:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-18 19:46:52,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1064, Invalid=3358, Unknown=0, NotChecked=0, Total=4422 [2022-11-18 19:46:52,793 INFO L87 Difference]: Start difference. First operand 220 states and 227 transitions. Second operand has 67 states, 63 states have (on average 2.984126984126984) internal successors, (188), 36 states have internal predecessors, (188), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:54,335 INFO L93 Difference]: Finished difference Result 353 states and 380 transitions. [2022-11-18 19:46:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-18 19:46:54,336 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 63 states have (on average 2.984126984126984) internal successors, (188), 36 states have internal predecessors, (188), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-11-18 19:46:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:54,341 INFO L225 Difference]: With dead ends: 353 [2022-11-18 19:46:54,342 INFO L226 Difference]: Without dead ends: 352 [2022-11-18 19:46:54,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2491, Invalid=6821, Unknown=0, NotChecked=0, Total=9312 [2022-11-18 19:46:54,347 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 943 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:54,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 660 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:46:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-18 19:46:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 340. [2022-11-18 19:46:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 274 states have (on average 1.083941605839416) internal successors, (297), 276 states have internal predecessors, (297), 32 states have call successors, (32), 31 states have call predecessors, (32), 31 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-18 19:46:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 361 transitions. [2022-11-18 19:46:54,376 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 361 transitions. Word has length 106 [2022-11-18 19:46:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:54,376 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 361 transitions. [2022-11-18 19:46:54,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 63 states have (on average 2.984126984126984) internal successors, (188), 36 states have internal predecessors, (188), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 361 transitions. [2022-11-18 19:46:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-18 19:46:54,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:54,387 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:54,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:54,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:46:54,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:54,600 INFO L85 PathProgramCache]: Analyzing trace with hash -872465624, now seen corresponding path program 2 times [2022-11-18 19:46:54,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:54,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097464975] [2022-11-18 19:46:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:54,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 1107 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097464975] [2022-11-18 19:46:56,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097464975] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801251782] [2022-11-18 19:46:56,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:56,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:56,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:56,224 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:56,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:46:56,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:56,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:56,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 19:46:56,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:57,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:57,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801251782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:57,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:57,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [44] total 86 [2022-11-18 19:46:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679092944] [2022-11-18 19:46:57,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:57,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-18 19:46:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-18 19:46:57,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1713, Invalid=5769, Unknown=0, NotChecked=0, Total=7482 [2022-11-18 19:46:57,932 INFO L87 Difference]: Start difference. First operand 340 states and 361 transitions. Second operand has 44 states, 42 states have (on average 3.0) internal successors, (126), 24 states have internal predecessors, (126), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,969 INFO L93 Difference]: Finished difference Result 362 states and 384 transitions. [2022-11-18 19:46:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 19:46:58,970 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 42 states have (on average 3.0) internal successors, (126), 24 states have internal predecessors, (126), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-11-18 19:46:58,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,975 INFO L225 Difference]: With dead ends: 362 [2022-11-18 19:46:58,975 INFO L226 Difference]: Without dead ends: 361 [2022-11-18 19:46:58,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4659 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2509, Invalid=9263, Unknown=0, NotChecked=0, Total=11772 [2022-11-18 19:46:58,982 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 426 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:58,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 495 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:46:58,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-18 19:46:59,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 339. [2022-11-18 19:46:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 274 states have (on average 1.0437956204379562) internal successors, (286), 275 states have internal predecessors, (286), 32 states have call successors, (32), 31 states have call predecessors, (32), 31 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-18 19:46:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 350 transitions. [2022-11-18 19:46:59,027 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 350 transitions. Word has length 147 [2022-11-18 19:46:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:59,028 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 350 transitions. [2022-11-18 19:46:59,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 42 states have (on average 3.0) internal successors, (126), 24 states have internal predecessors, (126), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 350 transitions. [2022-11-18 19:46:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:46:59,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:59,034 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-11-18 19:46:59,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:59,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:46:59,246 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:46:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1836305550, now seen corresponding path program 4 times [2022-11-18 19:46:59,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123491399] [2022-11-18 19:46:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 2850 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-18 19:47:00,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:00,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123491399] [2022-11-18 19:47:00,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123491399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:00,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:00,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-11-18 19:47:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980388726] [2022-11-18 19:47:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:00,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-18 19:47:00,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-18 19:47:00,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 19:47:00,988 INFO L87 Difference]: Start difference. First operand 339 states and 350 transitions. Second operand has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:01,912 INFO L93 Difference]: Finished difference Result 404 states and 414 transitions. [2022-11-18 19:47:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 19:47:01,913 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2022-11-18 19:47:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:01,914 INFO L225 Difference]: With dead ends: 404 [2022-11-18 19:47:01,915 INFO L226 Difference]: Without dead ends: 212 [2022-11-18 19:47:01,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1221, Invalid=3069, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 19:47:01,917 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 383 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:01,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 424 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:47:01,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-18 19:47:01,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-18 19:47:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 169 states have (on average 1.0) internal successors, (169), 169 states have internal predecessors, (169), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-18 19:47:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 211 transitions. [2022-11-18 19:47:01,933 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 211 transitions. Word has length 218 [2022-11-18 19:47:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:01,934 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 211 transitions. [2022-11-18 19:47:01,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 211 transitions. [2022-11-18 19:47:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-18 19:47:01,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:01,938 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:01,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:47:01,939 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:47:01,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:01,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1445419948, now seen corresponding path program 1 times [2022-11-18 19:47:01,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:01,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004159059] [2022-11-18 19:47:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:01,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2022-11-18 19:47:02,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:02,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004159059] [2022-11-18 19:47:02,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004159059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:02,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:02,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:47:02,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137293028] [2022-11-18 19:47:02,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:02,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:02,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:02,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:02,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:02,690 INFO L87 Difference]: Start difference. First operand 212 states and 211 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:47:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:02,703 INFO L93 Difference]: Finished difference Result 212 states and 211 transitions. [2022-11-18 19:47:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:02,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 211 [2022-11-18 19:47:02,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:02,704 INFO L225 Difference]: With dead ends: 212 [2022-11-18 19:47:02,704 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:47:02,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:02,706 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:02,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:47:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:47:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:47:02,708 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) [2022-11-18 19:47:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:47:02,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 211 [2022-11-18 19:47:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:02,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:47:02,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:47:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:47:02,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:47:02,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-18 19:47:02,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-18 19:47:02,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-18 19:47:02,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-18 19:47:02,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-18 19:47:02,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-18 19:47:02,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-18 19:47:02,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-18 19:47:02,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:47:02,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:47:04,350 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-18 19:47:04,350 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:47:04,351 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:47:04,351 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-18 19:47:04,351 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:47:04,351 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:47:04,351 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-18 19:47:04,352 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-18 19:47:04,352 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (<= 20 |ULTIMATE.start_main_~a~0#1|) (= |ULTIMATE.start_main_~b~0#1| 0) (<= |ULTIMATE.start_main_~a~0#1| 20)) [2022-11-18 19:47:04,352 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-18 19:47:04,353 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-18 19:47:04,353 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-18 19:47:04,353 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-18 19:47:04,353 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-18 19:47:04,353 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-18 19:47:04,354 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-18 19:47:04,354 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,354 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,354 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,354 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,355 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-18 19:47:04,355 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,355 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,355 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-18 19:47:04,355 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,355 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-18 19:47:04,356 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-18 19:47:04,356 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,357 INFO L895 garLoopResultBuilder]: At program point L9-4(line 9) the Hoare annotation is: (let ((.cse1 (<= 1 sum_~m)) (.cse0 (not (<= 1 |sum_#in~m|)))) (and (or .cse0 (not (<= |sum_#in~n| 12)) (not (<= 12 |sum_#in~n|)) (not (<= |sum_#in~m| 8)) (and .cse1 (<= sum_~n 12) (<= sum_~m 8) (<= 12 sum_~n))) (or .cse0 (not (<= |sum_#in~m| 1)) (not (<= |sum_#in~n| 19)) (not (<= 19 |sum_#in~n|)) (and (<= 19 sum_~n) (<= sum_~n 19) .cse1 (<= sum_~m 1))) (or .cse0 (not (<= |sum_#in~m| 3)) (not (<= |sum_#in~n| 17)) (and (<= sum_~m 3) .cse1 (<= 17 sum_~n) (<= sum_~n 17)) (not (<= 17 |sum_#in~n|))) (or .cse0 (and (<= sum_~m 14) .cse1 (< 5 sum_~n) (<= sum_~n 6)) (not (<= |sum_#in~n| 6)) (not (< 5 |sum_#in~n|)) (not (<= |sum_#in~m| 14))) (or .cse0 (not (<= |sum_#in~m| 10)) (not (<= |sum_#in~n| 10)) (not (<= 10 |sum_#in~n|)) (and .cse1 (<= 10 sum_~n) (<= sum_~n 10) (<= sum_~m 10))) (or .cse0 (not (<= |sum_#in~n| 14)) (not (<= |sum_#in~m| 6)) (and .cse1 (<= sum_~n 14) (<= sum_~m 6) (<= 14 sum_~n)) (not (<= 14 |sum_#in~n|))) (or (and (<= 20 sum_~n) (<= sum_~n 20) (= sum_~m 0)) (not (<= |sum_#in~n| 20)) (not (= |sum_#in~m| 0)) (not (<= 20 |sum_#in~n|))) (or .cse0 (and (<= sum_~n 15) .cse1 (<= 15 sum_~n) (<= sum_~m 5)) (not (<= |sum_#in~m| 5)) (not (<= 15 |sum_#in~n|)) (not (<= |sum_#in~n| 15))) (or .cse0 (not (< |sum_#in~m| 2147483636)) (and (<= sum_~n 2) .cse1 (< 1 sum_~n) (< sum_~m 2147483636)) (not (< 1 |sum_#in~n|)) (not (<= |sum_#in~n| 2))) (or .cse0 (not (< 6 |sum_#in~n|)) (not (<= |sum_#in~n| 7)) (and .cse1 (<= sum_~m 13) (< 6 sum_~n) (<= sum_~n 7)) (not (<= |sum_#in~m| 13))) (or .cse0 (not (<= |sum_#in~n| 5)) (not (< 4 |sum_#in~n|)) (not (< |sum_#in~m| 2147483633)) (and (< 4 sum_~n) (<= sum_~n 5) .cse1 (< sum_~m 2147483633))) (or .cse0 (and (<= sum_~n 8) .cse1 (< 7 sum_~n) (<= sum_~m 12)) (not (< 7 |sum_#in~n|)) (not (<= |sum_#in~m| 12)) (not (<= |sum_#in~n| 8))) (or .cse0 (not (<= |sum_#in~n| 18)) (not (<= 18 |sum_#in~n|)) (and (<= sum_~m 2) (<= sum_~n 18) .cse1 (<= 18 sum_~n)) (not (<= |sum_#in~m| 2))) (or .cse0 (not (<= |sum_#in~m| 7)) (not (<= |sum_#in~n| 13)) (and (<= sum_~n 13) .cse1 (<= sum_~m 7) (<= 13 sum_~n)) (not (<= 13 |sum_#in~n|))) (or .cse0 (not (<= |sum_#in~m| 4)) (not (<= 16 |sum_#in~n|)) (not (<= |sum_#in~n| 16)) (and (<= sum_~n 16) (<= sum_~m 4) .cse1 (<= 16 sum_~n))) (or .cse0 (and (<= sum_~n 1) .cse1 (< 0 sum_~n) (< sum_~m 2147483637)) (not (< 0 |sum_#in~n|)) (not (< |sum_#in~m| 2147483637)) (not (<= |sum_#in~n| 1))) (or .cse0 (not (<= |sum_#in~m| 11)) (not (< 8 |sum_#in~n|)) (not (<= |sum_#in~n| 9)) (and (< 8 sum_~n) (<= sum_~n 9) .cse1 (<= sum_~m 11))) (or .cse0 (not (<= |sum_#in~n| 11)) (and .cse1 (<= 11 sum_~n) (<= sum_~m 9) (<= sum_~n 11)) (not (<= |sum_#in~m| 9)) (not (<= 11 |sum_#in~n|))) (or .cse0 (not (< |sum_#in~m| 2147483634)) (not (<= |sum_#in~n| 4)) (not (< 3 |sum_#in~n|)) (and (< 3 sum_~n) (<= sum_~n 4) .cse1 (< sum_~m 2147483634))) (or .cse0 (not (<= |sum_#in~n| 3)) (not (< |sum_#in~m| 2147483635)) (not (< 2 |sum_#in~n|)) (and (< 2 sum_~n) (<= sum_~n 3) .cse1 (< sum_~m 2147483635))) (or .cse0 (not (< |sum_#in~m| 2147483638)) (not (<= |sum_#in~n| 0)) (not (<= 0 |sum_#in~n|))))) [2022-11-18 19:47:04,358 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-18 19:47:04,358 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-18 19:47:04,362 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1] [2022-11-18 19:47:04,365 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:47:04,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:47:04 BoogieIcfgContainer [2022-11-18 19:47:04,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:47:04,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:47:04,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:47:04,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:47:04,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:38" (3/4) ... [2022-11-18 19:47:04,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:47:04,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-18 19:47:04,388 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 19:47:04,388 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 19:47:04,389 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:47:04,389 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:47:04,425 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:47:04,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:47:04,426 INFO L158 Benchmark]: Toolchain (without parser) took 26721.88ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 110.2MB in the beginning and 149.7MB in the end (delta: -39.6MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,426 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:04,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.28ms. Allocated memory is still 140.5MB. Free memory was 109.8MB in the beginning and 117.5MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.60ms. Allocated memory is still 140.5MB. Free memory was 117.5MB in the beginning and 116.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,428 INFO L158 Benchmark]: Boogie Preprocessor took 19.85ms. Allocated memory is still 140.5MB. Free memory was 116.1MB in the beginning and 115.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:04,428 INFO L158 Benchmark]: RCFGBuilder took 427.85ms. Allocated memory is still 140.5MB. Free memory was 115.0MB in the beginning and 105.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,429 INFO L158 Benchmark]: TraceAbstraction took 25883.40ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 104.0MB in the beginning and 151.8MB in the end (delta: -47.8MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,429 INFO L158 Benchmark]: Witness Printer took 55.13ms. Allocated memory is still 249.6MB. Free memory was 151.8MB in the beginning and 149.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:04,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.28ms. Allocated memory is still 140.5MB. Free memory was 109.8MB in the beginning and 117.5MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.60ms. Allocated memory is still 140.5MB. Free memory was 117.5MB in the beginning and 116.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.85ms. Allocated memory is still 140.5MB. Free memory was 116.1MB in the beginning and 115.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 427.85ms. Allocated memory is still 140.5MB. Free memory was 115.0MB in the beginning and 105.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25883.40ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 104.0MB in the beginning and 151.8MB in the end (delta: -47.8MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. * Witness Printer took 55.13ms. Allocated memory is still 249.6MB. Free memory was 151.8MB in the beginning and 149.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: 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 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 25.8s, OverallIterations: 14, TraceHistogramMax: 31, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3581 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3563 mSDsluCounter, 3487 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3006 mSDsCounter, 785 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4036 IncrementalHoareTripleChecker+Invalid, 4821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 785 mSolverCounterUnsat, 481 mSDtfsCounter, 4036 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1279 GetRequests, 745 SyntacticMatches, 4 SemanticMatches, 530 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9724 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=11, InterpolantAutomatonStates: 320, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 86 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 65 PreInvPairs, 65 NumberOfFragments, 622 HoareAnnotationTreeSize, 65 FomulaSimplifications, 864 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1564 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 1530 NumberOfCodeBlocks, 1467 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1803 ConstructedInterpolants, 0 QuantifiedInterpolants, 4981 SizeOfPredicates, 67 NumberOfNonLiveVariables, 1265 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 29 InterpolantComputations, 8 PerfectInterpolantSequences, 7993/12335 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:47:04,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36bf41e-2063-40b8-9924-4201b5725d27/bin/uautomizer-TMbwUNV5ro/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