./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN --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 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a --- 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-6b4ec56 [2022-11-20 10:43:49,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:43:49,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:43:49,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:43:49,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:43:49,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:43:49,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:43:49,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:43:49,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:43:50,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:43:50,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:43:50,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:43:50,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:43:50,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:43:50,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:43:50,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:43:50,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:43:50,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:43:50,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:43:50,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:43:50,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:43:50,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:43:50,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:43:50,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:43:50,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:43:50,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:43:50,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:43:50,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:43:50,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:43:50,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:43:50,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:43:50,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:43:50,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:43:50,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:43:50,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:43:50,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:43:50,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:43:50,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:43:50,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:43:50,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:43:50,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:43:50,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:43:50,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:43:50,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:43:50,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:43:50,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:43:50,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:43:50,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:43:50,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:43:50,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:43:50,095 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:43:50,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:43:50,098 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:43:50,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:43:50,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:43:50,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:43:50,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:43:50,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:43:50,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:43:50,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:43:50,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:43:50,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:43:50,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:43:50,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:43:50,103 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:43:50,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:43:50,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:43:50,104 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_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a [2022-11-20 10:43:50,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:43:50,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:43:50,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:43:50,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:43:50,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:43:50,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2022-11-20 10:43:53,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:43:53,704 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:43:53,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2022-11-20 10:43:53,711 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/data/0e45648d0/5e8d6e7eabbc4baca149f6317db97ab8/FLAGdc25ed637 [2022-11-20 10:43:53,732 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/data/0e45648d0/5e8d6e7eabbc4baca149f6317db97ab8 [2022-11-20 10:43:53,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:43:53,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:43:53,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:43:53,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:43:53,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:43:53,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295b2b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53, skipping insertion in model container [2022-11-20 10:43:53,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:43:53,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:43:53,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2022-11-20 10:43:53,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:53,930 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:43:53,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2022-11-20 10:43:53,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:53,953 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:43:53,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53 WrapperNode [2022-11-20 10:43:53,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:43:53,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:53,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:43:53,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:43:53,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,984 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-20 10:43:53,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:53,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:43:53,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:43:53,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:43:53,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:43:54,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:43:54,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:43:54,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:43:54,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:43:54,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:54,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:43:54,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-20 10:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-20 10:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:43:54,150 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:43:54,154 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:43:54,271 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:43:54,278 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:43:54,278 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:43:54,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:43:54 BoogieIcfgContainer [2022-11-20 10:43:54,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:43:54,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:43:54,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:43:54,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:43:54,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:43:53" (1/3) ... [2022-11-20 10:43:54,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6276e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:43:54, skipping insertion in model container [2022-11-20 10:43:54,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (2/3) ... [2022-11-20 10:43:54,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6276e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:43:54, skipping insertion in model container [2022-11-20 10:43:54,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:43:54" (3/3) ... [2022-11-20 10:43:54,291 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_20x0-2.c [2022-11-20 10:43:54,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:43:54,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 10:43:54,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:43:54,412 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;@56a254b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:43:54,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 10:43:54,417 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) [2022-11-20 10:43:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:43:54,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:54,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:43:54,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-20 10:43:54,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:54,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142220074] [2022-11-20 10:43:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:54,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:54,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142220074] [2022-11-20 10:43:54,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142220074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:54,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:54,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:43:54,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567414477] [2022-11-20 10:43:54,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:54,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:43:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:54,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:43:54,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:43:54,879 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) [2022-11-20 10:43:55,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:55,069 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-20 10:43:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:43:55,072 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 [2022-11-20 10:43:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:55,081 INFO L225 Difference]: With dead ends: 54 [2022-11-20 10:43:55,081 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 10:43:55,084 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 [2022-11-20 10:43:55,088 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 [2022-11-20 10:43:55,088 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] [2022-11-20 10:43:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 10:43:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-11-20 10:43:55,127 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) [2022-11-20 10:43:55,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-20 10:43:55,136 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2022-11-20 10:43:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:55,136 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-20 10:43:55,137 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) [2022-11-20 10:43:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-20 10:43:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:43:55,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:55,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:43:55,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:43:55,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:55,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:55,139 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-11-20 10:43:55,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:55,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119116357] [2022-11-20 10:43:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:55,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:55,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119116357] [2022-11-20 10:43:55,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119116357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:55,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:55,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:43:55,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630823703] [2022-11-20 10:43:55,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:55,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:43:55,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:55,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:43:55,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:43:55,202 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) [2022-11-20 10:43:55,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:55,254 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-20 10:43:55,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:43:55,255 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 [2022-11-20 10:43:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:55,256 INFO L225 Difference]: With dead ends: 38 [2022-11-20 10:43:55,256 INFO L226 Difference]: Without dead ends: 37 [2022-11-20 10:43:55,256 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 [2022-11-20 10:43:55,258 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 [2022-11-20 10:43:55,258 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] [2022-11-20 10:43:55,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-20 10:43:55,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-20 10:43:55,264 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) [2022-11-20 10:43:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-20 10:43:55,266 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2022-11-20 10:43:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:55,266 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-20 10:43:55,266 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) [2022-11-20 10:43:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-20 10:43:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:43:55,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:55,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:55,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:43:55,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:55,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-11-20 10:43:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:55,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246328141] [2022-11-20 10:43:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:55,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:55,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246328141] [2022-11-20 10:43:55,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246328141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:55,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:55,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:43:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453138261] [2022-11-20 10:43:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:43:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:43:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:43:55,366 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) [2022-11-20 10:43:55,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:55,429 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2022-11-20 10:43:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:43:55,430 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 [2022-11-20 10:43:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:55,430 INFO L225 Difference]: With dead ends: 46 [2022-11-20 10:43:55,431 INFO L226 Difference]: Without dead ends: 35 [2022-11-20 10:43:55,431 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 [2022-11-20 10:43:55,433 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:55,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:43:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-20 10:43:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-20 10:43:55,440 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) [2022-11-20 10:43:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-20 10:43:55,441 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 7 [2022-11-20 10:43:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:55,442 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-20 10:43:55,442 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) [2022-11-20 10:43:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-20 10:43:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 10:43:55,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:55,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:55,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:43:55,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-20 10:43:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:55,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565270562] [2022-11-20 10:43:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:55,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:55,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565270562] [2022-11-20 10:43:55,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565270562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:55,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599293208] [2022-11-20 10:43:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:55,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:55,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:55,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:55,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:43:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:55,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:43:55,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599293208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:43:55,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:43:55,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-11-20 10:43:55,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132112176] [2022-11-20 10:43:55,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:55,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:43:55,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:55,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:43:55,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:43:55,966 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) [2022-11-20 10:43:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:56,326 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-11-20 10:43:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:43:56,327 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 [2022-11-20 10:43:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:56,329 INFO L225 Difference]: With dead ends: 87 [2022-11-20 10:43:56,329 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 10:43:56,330 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 [2022-11-20 10:43:56,332 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 [2022-11-20 10:43:56,332 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] [2022-11-20 10:43:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 10:43:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-20 10:43:56,343 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) [2022-11-20 10:43:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-20 10:43:56,345 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 13 [2022-11-20 10:43:56,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:56,346 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-20 10:43:56,346 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) [2022-11-20 10:43:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-20 10:43:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:43:56,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:56,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:56,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 10:43:56,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:56,553 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:56,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-20 10:43:56,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:56,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825138308] [2022-11-20 10:43:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:56,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:56,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:56,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825138308] [2022-11-20 10:43:56,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825138308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:56,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100411023] [2022-11-20 10:43:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:56,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:56,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:56,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:56,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:43:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:56,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:43:56,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:56,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:43:56,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100411023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:56,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:43:56,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 10:43:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664918194] [2022-11-20 10:43:56,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:56,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:43:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:56,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:43:56,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:43:56,877 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) [2022-11-20 10:43:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:56,967 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-20 10:43:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:43:56,967 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 [2022-11-20 10:43:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:56,971 INFO L225 Difference]: With dead ends: 62 [2022-11-20 10:43:56,971 INFO L226 Difference]: Without dead ends: 61 [2022-11-20 10:43:56,972 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 [2022-11-20 10:43:56,975 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:56,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 44 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:43:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-20 10:43:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-20 10:43:57,004 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) [2022-11-20 10:43:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2022-11-20 10:43:57,006 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 16 [2022-11-20 10:43:57,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:57,006 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2022-11-20 10:43:57,007 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) [2022-11-20 10:43:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2022-11-20 10:43:57,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:43:57,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:57,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 10:43:57,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:57,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:57,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1760820046, now seen corresponding path program 1 times [2022-11-20 10:43:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:57,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363146651] [2022-11-20 10:43:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:57,432 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:57,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:57,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363146651] [2022-11-20 10:43:57,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363146651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:57,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874018773] [2022-11-20 10:43:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:57,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:57,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:57,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:43:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:57,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:43:57,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:57,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:57,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874018773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:43:57,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:43:57,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-20 10:43:57,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359912332] [2022-11-20 10:43:57,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:57,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:43:57,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:57,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:43:57,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:43:57,675 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) [2022-11-20 10:43:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:57,934 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-20 10:43:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:43:57,937 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 [2022-11-20 10:43:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:57,942 INFO L225 Difference]: With dead ends: 92 [2022-11-20 10:43:57,942 INFO L226 Difference]: Without dead ends: 91 [2022-11-20 10:43:57,943 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 [2022-11-20 10:43:57,947 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 [2022-11-20 10:43:57,947 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] [2022-11-20 10:43:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-20 10:43:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2022-11-20 10:43:57,966 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) [2022-11-20 10:43:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2022-11-20 10:43:57,970 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 22 [2022-11-20 10:43:57,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:57,971 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2022-11-20 10:43:57,972 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) [2022-11-20 10:43:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2022-11-20 10:43:57,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 10:43:57,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:57,973 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-20 10:43:57,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:58,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:43:58,180 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1208760848, now seen corresponding path program 2 times [2022-11-20 10:43:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:58,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151230226] [2022-11-20 10:43:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:58,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:58,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:58,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151230226] [2022-11-20 10:43:58,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151230226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:58,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617985884] [2022-11-20 10:43:58,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:43:58,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:58,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:58,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:58,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:43:58,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:43:58,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:43:58,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:43:58,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:58,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:59,016 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:59,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617985884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:43:59,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:43:59,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-11-20 10:43:59,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954248936] [2022-11-20 10:43:59,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:59,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 10:43:59,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 10:43:59,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:43:59,019 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) [2022-11-20 10:43:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:59,688 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2022-11-20 10:43:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:43:59,689 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 [2022-11-20 10:43:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:59,690 INFO L225 Difference]: With dead ends: 159 [2022-11-20 10:43:59,690 INFO L226 Difference]: Without dead ends: 127 [2022-11-20 10:43:59,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=480, Invalid=2172, Unknown=0, NotChecked=0, Total=2652 [2022-11-20 10:43:59,692 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:59,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 409 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:43:59,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-20 10:43:59,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2022-11-20 10:43:59,704 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) [2022-11-20 10:43:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2022-11-20 10:43:59,705 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 34 [2022-11-20 10:43:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:59,705 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2022-11-20 10:43:59,706 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) [2022-11-20 10:43:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2022-11-20 10:43:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:43:59,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:59,707 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-20 10:43:59,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 10:43:59,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:59,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:43:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1182445582, now seen corresponding path program 2 times [2022-11-20 10:43:59,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:59,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987508418] [2022-11-20 10:43:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:59,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:00,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987508418] [2022-11-20 10:44:00,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987508418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:00,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412264238] [2022-11-20 10:44:00,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:44:00,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:00,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:44:00,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:44:00,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:44:00,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:44:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:00,450 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:00,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:44:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:00,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412264238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:44:00,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:44:00,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2022-11-20 10:44:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393352334] [2022-11-20 10:44:00,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:44:00,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 10:44:00,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 10:44:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 10:44:00,827 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) [2022-11-20 10:44:01,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:01,331 INFO L93 Difference]: Finished difference Result 180 states and 193 transitions. [2022-11-20 10:44:01,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:44:01,331 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 [2022-11-20 10:44:01,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:01,333 INFO L225 Difference]: With dead ends: 180 [2022-11-20 10:44:01,333 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 10:44:01,334 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 [2022-11-20 10:44:01,336 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:01,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 364 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:44:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 10:44:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2022-11-20 10:44:01,361 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) [2022-11-20 10:44:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 182 transitions. [2022-11-20 10:44:01,363 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 182 transitions. Word has length 50 [2022-11-20 10:44:01,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:01,365 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 182 transitions. [2022-11-20 10:44:01,366 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) [2022-11-20 10:44:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 182 transitions. [2022-11-20 10:44:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 10:44:01,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:01,371 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-20 10:44:01,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:01,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 10:44:01,577 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash -448735504, now seen corresponding path program 3 times [2022-11-20 10:44:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:01,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614511441] [2022-11-20 10:44:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:02,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:02,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614511441] [2022-11-20 10:44:02,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614511441] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:02,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681220032] [2022-11-20 10:44:02,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:44:02,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:02,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:02,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:02,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:44:02,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:44:02,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:44:02,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:44:02,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 10:44:02,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:44:02,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681220032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:02,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:44:02,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-11-20 10:44:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314839174] [2022-11-20 10:44:02,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:02,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:44:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:44:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:44:02,269 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) [2022-11-20 10:44:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:02,358 INFO L93 Difference]: Finished difference Result 179 states and 193 transitions. [2022-11-20 10:44:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:44:02,359 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 [2022-11-20 10:44:02,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:02,363 INFO L225 Difference]: With dead ends: 179 [2022-11-20 10:44:02,363 INFO L226 Difference]: Without dead ends: 178 [2022-11-20 10:44:02,364 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 [2022-11-20 10:44:02,366 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 [2022-11-20 10:44:02,367 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] [2022-11-20 10:44:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-20 10:44:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2022-11-20 10:44:02,382 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) [2022-11-20 10:44:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2022-11-20 10:44:02,383 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 76 [2022-11-20 10:44:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:02,385 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2022-11-20 10:44:02,386 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) [2022-11-20 10:44:02,386 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2022-11-20 10:44:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 10:44:02,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:02,392 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:02,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:02,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:02,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:02,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1025898680, now seen corresponding path program 1 times [2022-11-20 10:44:02,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:02,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517472551] [2022-11-20 10:44:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:02,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:03,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:03,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517472551] [2022-11-20 10:44:03,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517472551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:03,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570202171] [2022-11-20 10:44:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:03,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:03,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:03,172 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:03,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:44:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:03,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 10:44:03,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:03,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:44:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:03,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570202171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:44:03,980 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:44:03,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 44 [2022-11-20 10:44:03,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406795820] [2022-11-20 10:44:03,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:44:03,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-20 10:44:03,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:03,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-20 10:44:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=466, Invalid=1426, Unknown=0, NotChecked=0, Total=1892 [2022-11-20 10:44:03,983 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) [2022-11-20 10:44:04,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:04,775 INFO L93 Difference]: Finished difference Result 287 states and 307 transitions. [2022-11-20 10:44:04,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-20 10:44:04,776 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 [2022-11-20 10:44:04,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:04,778 INFO L225 Difference]: With dead ends: 287 [2022-11-20 10:44:04,778 INFO L226 Difference]: Without dead ends: 228 [2022-11-20 10:44:04,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 131 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1116, Invalid=2916, Unknown=0, NotChecked=0, Total=4032 [2022-11-20 10:44:04,780 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:04,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 496 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:44:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-20 10:44:04,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 220. [2022-11-20 10:44:04,792 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) [2022-11-20 10:44:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 227 transitions. [2022-11-20 10:44:04,794 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 227 transitions. Word has length 77 [2022-11-20 10:44:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:04,794 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 227 transitions. [2022-11-20 10:44:04,794 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) [2022-11-20 10:44:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 227 transitions. [2022-11-20 10:44:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 10:44:04,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:04,796 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-20 10:44:04,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:05,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:05,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:05,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1081620878, now seen corresponding path program 3 times [2022-11-20 10:44:05,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:05,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444085861] [2022-11-20 10:44:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:05,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444085861] [2022-11-20 10:44:05,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444085861] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972797108] [2022-11-20 10:44:05,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:44:05,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:05,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:05,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:05,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:44:05,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-20 10:44:05,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:44:05,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 10:44:05,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:06,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:44:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:07,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972797108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:44:07,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:44:07,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 66 [2022-11-20 10:44:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936647109] [2022-11-20 10:44:07,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:44:07,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-20 10:44:07,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:07,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-20 10:44:07,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1064, Invalid=3358, Unknown=0, NotChecked=0, Total=4422 [2022-11-20 10:44:07,244 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) [2022-11-20 10:44:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:08,683 INFO L93 Difference]: Finished difference Result 353 states and 380 transitions. [2022-11-20 10:44:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-20 10:44:08,684 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 [2022-11-20 10:44:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:08,686 INFO L225 Difference]: With dead ends: 353 [2022-11-20 10:44:08,686 INFO L226 Difference]: Without dead ends: 352 [2022-11-20 10:44:08,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2491, Invalid=6821, Unknown=0, NotChecked=0, Total=9312 [2022-11-20 10:44:08,689 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 [2022-11-20 10:44:08,689 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] [2022-11-20 10:44:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-20 10:44:08,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 340. [2022-11-20 10:44:08,707 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) [2022-11-20 10:44:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 361 transitions. [2022-11-20 10:44:08,709 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 361 transitions. Word has length 106 [2022-11-20 10:44:08,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:08,710 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 361 transitions. [2022-11-20 10:44:08,710 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) [2022-11-20 10:44:08,710 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 361 transitions. [2022-11-20 10:44:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-20 10:44:08,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:08,718 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:08,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:08,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 10:44:08,923 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:08,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash -872465624, now seen corresponding path program 2 times [2022-11-20 10:44:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778861647] [2022-11-20 10:44:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:08,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 1107 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:10,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778861647] [2022-11-20 10:44:10,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778861647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151248909] [2022-11-20 10:44:10,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:44:10,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:10,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:10,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:10,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:44:10,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:44:10,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:44:10,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-20 10:44:10,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:11,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:44:11,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151248909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:11,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:44:11,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [44] total 86 [2022-11-20 10:44:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101140111] [2022-11-20 10:44:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:11,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-20 10:44:11,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-20 10:44:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1713, Invalid=5769, Unknown=0, NotChecked=0, Total=7482 [2022-11-20 10:44:11,907 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) [2022-11-20 10:44:12,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:12,833 INFO L93 Difference]: Finished difference Result 362 states and 384 transitions. [2022-11-20 10:44:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 10:44:12,834 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 [2022-11-20 10:44:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:12,837 INFO L225 Difference]: With dead ends: 362 [2022-11-20 10:44:12,838 INFO L226 Difference]: Without dead ends: 361 [2022-11-20 10:44:12,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4659 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2509, Invalid=9263, Unknown=0, NotChecked=0, Total=11772 [2022-11-20 10:44:12,844 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 [2022-11-20 10:44:12,844 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] [2022-11-20 10:44:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-20 10:44:12,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 339. [2022-11-20 10:44:12,868 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) [2022-11-20 10:44:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 350 transitions. [2022-11-20 10:44:12,870 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 350 transitions. Word has length 147 [2022-11-20 10:44:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:12,871 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 350 transitions. [2022-11-20 10:44:12,871 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) [2022-11-20 10:44:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 350 transitions. [2022-11-20 10:44:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-20 10:44:12,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:12,875 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-11-20 10:44:12,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:13,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 10:44:13,087 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1836305550, now seen corresponding path program 4 times [2022-11-20 10:44:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:13,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085066752] [2022-11-20 10:44:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 2850 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-20 10:44:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:14,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085066752] [2022-11-20 10:44:14,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085066752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:14,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:14,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-11-20 10:44:14,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828820911] [2022-11-20 10:44:14,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:14,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-20 10:44:14,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-20 10:44:14,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2022-11-20 10:44:14,634 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) [2022-11-20 10:44:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:15,422 INFO L93 Difference]: Finished difference Result 404 states and 414 transitions. [2022-11-20 10:44:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 10:44:15,423 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 [2022-11-20 10:44:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:15,424 INFO L225 Difference]: With dead ends: 404 [2022-11-20 10:44:15,424 INFO L226 Difference]: Without dead ends: 212 [2022-11-20 10:44:15,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1221, Invalid=3069, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 10:44:15,426 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 383 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:15,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 424 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:44:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-20 10:44:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-20 10:44:15,440 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) [2022-11-20 10:44:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 211 transitions. [2022-11-20 10:44:15,442 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 211 transitions. Word has length 218 [2022-11-20 10:44:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:15,443 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 211 transitions. [2022-11-20 10:44:15,444 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) [2022-11-20 10:44:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 211 transitions. [2022-11-20 10:44:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-20 10:44:15,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:15,447 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:15,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:44:15,447 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:44:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:15,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1445419948, now seen corresponding path program 1 times [2022-11-20 10:44:15,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:15,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028149783] [2022-11-20 10:44:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:15,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:44:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2022-11-20 10:44:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:16,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028149783] [2022-11-20 10:44:16,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028149783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:16,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:16,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:44:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965991373] [2022-11-20 10:44:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:16,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:44:16,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:44:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:44:16,097 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) [2022-11-20 10:44:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:16,106 INFO L93 Difference]: Finished difference Result 212 states and 211 transitions. [2022-11-20 10:44:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:44:16,107 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 [2022-11-20 10:44:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:16,108 INFO L225 Difference]: With dead ends: 212 [2022-11-20 10:44:16,108 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:44:16,109 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 [2022-11-20 10:44:16,109 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 [2022-11-20 10:44:16,110 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] [2022-11-20 10:44:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:44:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:44:16,110 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) [2022-11-20 10:44:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:44:16,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 211 [2022-11-20 10:44:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:16,111 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:44:16,111 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) [2022-11-20 10:44:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:44:16,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:44:16,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-20 10:44:16,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-20 10:44:16,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-20 10:44:16,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-20 10:44:16,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-20 10:44:16,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-20 10:44:16,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-20 10:44:16,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-20 10:44:16,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:44:16,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:44:17,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 10:44:17,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:44:17,616 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:44:17,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 10:44:17,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:44:17,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:44:17,617 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-20 10:44:17,617 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-20 10:44:17,618 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)) [2022-11-20 10:44:17,618 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-20 10:44:17,618 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-20 10:44:17,619 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,620 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,620 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,620 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,620 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-20 10:44:17,621 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-20 10:44:17,622 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,622 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|))))) [2022-11-20 10:44:17,623 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-20 10:44:17,623 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-20 10:44:17,626 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1] [2022-11-20 10:44:17,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:44:17,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:44:17 BoogieIcfgContainer [2022-11-20 10:44:17,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:44:17,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:44:17,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:44:17,633 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:44:17,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:43:54" (3/4) ... [2022-11-20 10:44:17,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:44:17,644 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-20 10:44:17,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 10:44:17,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 10:44:17,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:44:17,649 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:44:17,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:44:17,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:44:17,688 INFO L158 Benchmark]: Toolchain (without parser) took 23946.44ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 119.9MB in the beginning and 183.6MB in the end (delta: -63.7MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,688 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:44:17,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 110.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:44:17,690 INFO L158 Benchmark]: Boogie Preprocessor took 15.64ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 108.0MB in the end (delta: 740.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,690 INFO L158 Benchmark]: RCFGBuilder took 279.20ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 96.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,692 INFO L158 Benchmark]: TraceAbstraction took 23349.30ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 96.2MB in the beginning and 185.7MB in the end (delta: -89.5MB). Peak memory consumption was 133.7MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,692 INFO L158 Benchmark]: Witness Printer took 54.30ms. Allocated memory is still 281.0MB. Free memory was 185.7MB in the beginning and 183.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:44:17,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 110.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.64ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 108.0MB in the end (delta: 740.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.20ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 96.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 23349.30ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 96.2MB in the beginning and 185.7MB in the end (delta: -89.5MB). Peak memory consumption was 133.7MB. Max. memory is 16.1GB. * Witness Printer took 54.30ms. Allocated memory is still 281.0MB. Free memory was 185.7MB in the beginning and 183.6MB 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: 23.2s, OverallIterations: 14, TraceHistogramMax: 31, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3581 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3563 mSDsluCounter, 3487 SdHoareTripleChecker+Invalid, 2.4s 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, 8.7s 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: 0.2s 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, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.9s 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! [2022-11-20 10:44:17,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2537e4a-f8e8-4c3e-99c4-04be60a9ce69/bin/uautomizer-ug76WZFUDN/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