./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_10x0-2.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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_10x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/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 2b1e7360b510ceea1b4f190c67c2656c6deb0030b7718750b71696817135287b --- 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 10:36:55,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:36:55,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:36:55,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:36:55,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:36:55,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:36:55,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:36:55,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:36:55,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:36:55,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:36:55,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:36:55,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:36:55,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:36:56,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:36:56,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:36:56,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:36:56,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:36:56,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:36:56,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:36:56,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:36:56,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:36:56,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:36:56,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:36:56,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:36:56,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:36:56,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:36:56,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:36:56,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:36:56,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:36:56,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:36:56,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:36:56,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:36:56,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:36:56,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:36:56,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:36:56,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:36:56,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:36:56,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:36:56,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:36:56,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:36:56,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:36:56,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:36:56,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:36:56,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:36:56,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:36:56,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:36:56,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:36:56,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:36:56,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:36:56,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:36:56,090 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:36:56,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:36:56,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:36:56,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:36:56,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:36:56,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:36:56,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:36:56,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:36:56,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:36:56,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:36:56,093 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:36:56,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:36:56,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:36:56,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:36:56,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:36:56,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:36:56,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:36:56,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:36:56,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:36:56,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:36:56,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:36:56,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:36:56,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:36:56,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:36:56,096 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:36:56,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:36:56,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:36:56,096 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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1e7360b510ceea1b4f190c67c2656c6deb0030b7718750b71696817135287b [2022-11-20 10:36:56,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:36:56,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:36:56,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:36:56,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:36:56,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:36:56,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive-simple/sum_10x0-2.c [2022-11-20 10:36:59,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:36:59,646 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:36:59,646 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/sv-benchmarks/c/recursive-simple/sum_10x0-2.c [2022-11-20 10:36:59,652 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/data/c4afac90b/e8b41881c3fd4752a7c08637a0ba4165/FLAG969715532 [2022-11-20 10:36:59,666 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/data/c4afac90b/e8b41881c3fd4752a7c08637a0ba4165 [2022-11-20 10:36:59,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:36:59,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:36:59,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:36:59,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:36:59,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:36:59,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2b4500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59, skipping insertion in model container [2022-11-20 10:36:59,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:36:59,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:36:59,836 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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/sv-benchmarks/c/recursive-simple/sum_10x0-2.c[481,494] [2022-11-20 10:36:59,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:36:59,847 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:36:59,877 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_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/sv-benchmarks/c/recursive-simple/sum_10x0-2.c[481,494] [2022-11-20 10:36:59,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:36:59,889 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:36:59,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59 WrapperNode [2022-11-20 10:36:59,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:36:59,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:36:59,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:36:59,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:36:59,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,941 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-20 10:36:59,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:36:59,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:36:59,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:36:59,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:36:59,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:36:59,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:36:59,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:36:59,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:36:59,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (1/1) ... [2022-11-20 10:36:59,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:36:59,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:00,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:37:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:37:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:37:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:37:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:37:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-20 10:37:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-20 10:37:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:37:00,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:37:00,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:37:00,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:00,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:00,245 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:37:00,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:00 BoogieIcfgContainer [2022-11-20 10:37:00,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:00,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:00,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:00,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:00,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:36:59" (1/3) ... [2022-11-20 10:37:00,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9b2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:00, skipping insertion in model container [2022-11-20 10:37:00,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:59" (2/3) ... [2022-11-20 10:37:00,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9b2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:00, skipping insertion in model container [2022-11-20 10:37:00,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:00" (3/3) ... [2022-11-20 10:37:00,267 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_10x0-2.c [2022-11-20 10:37:00,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:00,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 10:37:00,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:00,390 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;@27da833b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:00,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 10:37:00,396 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 10:37:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:37:00,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:00,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:37:00,407 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 10:37:00,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-20 10:37:00,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:00,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334866710] [2022-11-20 10:37:00,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:00,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:00,818 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 10:37:00,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:00,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334866710] [2022-11-20 10:37:00,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334866710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:00,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:00,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:37:00,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090082704] [2022-11-20 10:37:00,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:00,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:37:00,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:00,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:37:00,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:37:00,857 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 10:37:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:01,005 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-20 10:37:01,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:37:01,008 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 10:37:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:01,016 INFO L225 Difference]: With dead ends: 54 [2022-11-20 10:37:01,017 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 10:37:01,020 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 10:37:01,029 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 10:37:01,030 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 10:37:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 10:37:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-11-20 10:37:01,069 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 10:37:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-20 10:37:01,073 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2022-11-20 10:37:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:01,073 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-20 10:37:01,074 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 10:37:01,074 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-20 10:37:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:37:01,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:01,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:37:01,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:37:01,076 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 10:37:01,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-11-20 10:37:01,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:01,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773249392] [2022-11-20 10:37:01,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:01,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:01,134 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 10:37:01,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:01,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773249392] [2022-11-20 10:37:01,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773249392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:01,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:01,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:37:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218339079] [2022-11-20 10:37:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:01,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:37:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:37:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:37:01,139 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 10:37:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:01,194 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-20 10:37:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:37:01,195 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 10:37:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:01,196 INFO L225 Difference]: With dead ends: 38 [2022-11-20 10:37:01,197 INFO L226 Difference]: Without dead ends: 37 [2022-11-20 10:37:01,197 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 10:37:01,198 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 10:37:01,199 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 10:37:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-20 10:37:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-20 10:37:01,206 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 10:37:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-20 10:37:01,208 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2022-11-20 10:37:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:01,208 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-20 10:37:01,208 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 10:37:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-20 10:37:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:37:01,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:01,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:01,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:37:01,210 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 10:37:01,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:01,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-11-20 10:37:01,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:01,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814573949] [2022-11-20 10:37:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:01,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:01,264 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 10:37:01,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:01,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814573949] [2022-11-20 10:37:01,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814573949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:01,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:01,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:37:01,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470948873] [2022-11-20 10:37:01,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:01,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:37:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:01,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:37:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:37:01,268 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 10:37:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:01,330 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2022-11-20 10:37:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:37:01,330 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 10:37:01,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:01,331 INFO L225 Difference]: With dead ends: 46 [2022-11-20 10:37:01,332 INFO L226 Difference]: Without dead ends: 35 [2022-11-20 10:37:01,332 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 10:37:01,334 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 10:37:01,334 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 10:37:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-20 10:37:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-20 10:37:01,341 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 10:37:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-20 10:37:01,342 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 7 [2022-11-20 10:37:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:01,343 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-20 10:37:01,343 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 10:37:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-20 10:37:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 10:37:01,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:01,344 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:01,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:37:01,344 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 10:37:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-20 10:37:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662196237] [2022-11-20 10:37:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:01,456 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 10:37:01,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:01,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662196237] [2022-11-20 10:37:01,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662196237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:01,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300075595] [2022-11-20 10:37:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:01,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:01,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:01,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:01,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:37:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:01,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:37:01,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:01,631 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 10:37:01,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:01,742 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 10:37:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300075595] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:01,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:37:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-11-20 10:37:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53214259] [2022-11-20 10:37:01,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:01,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:37:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:37:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:37:01,746 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 10:37:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:02,084 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-11-20 10:37:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:37:02,085 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 10:37:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:02,086 INFO L225 Difference]: With dead ends: 87 [2022-11-20 10:37:02,086 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 10:37:02,087 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 10:37:02,088 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 151 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 10:37:02,089 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 10:37:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 10:37:02,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-20 10:37:02,099 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 10:37:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-20 10:37:02,101 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 13 [2022-11-20 10:37:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:02,101 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-20 10:37:02,101 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 10:37:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-20 10:37:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:37:02,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:02,102 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:02,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:02,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:02,314 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 10:37:02,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:02,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-20 10:37:02,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:02,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538454861] [2022-11-20 10:37:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:02,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:02,400 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 10:37:02,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:02,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538454861] [2022-11-20 10:37:02,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538454861] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:02,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285865208] [2022-11-20 10:37:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:02,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:02,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:02,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:02,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:37:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:02,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:37:02,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:02,540 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 10:37:02,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:02,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285865208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:02,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:37:02,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 10:37:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114535304] [2022-11-20 10:37:02,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:02,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:37:02,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:37:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:37:02,552 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 10:37:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:02,622 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-20 10:37:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:37:02,623 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 10:37:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:02,625 INFO L225 Difference]: With dead ends: 62 [2022-11-20 10:37:02,625 INFO L226 Difference]: Without dead ends: 61 [2022-11-20 10:37:02,626 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 10:37:02,628 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 10:37:02,628 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 10:37:02,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-20 10:37:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-20 10:37:02,648 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 10:37:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2022-11-20 10:37:02,652 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 16 [2022-11-20 10:37:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:02,653 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2022-11-20 10:37:02,653 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 10:37:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2022-11-20 10:37:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:37:02,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:02,654 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 10:37:02,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:02,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:02,859 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 10:37:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1760820046, now seen corresponding path program 1 times [2022-11-20 10:37:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:02,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610229551] [2022-11-20 10:37:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:03,014 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 10:37:03,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:03,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610229551] [2022-11-20 10:37:03,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610229551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:03,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057422705] [2022-11-20 10:37:03,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:03,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:03,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:03,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:03,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:37:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:03,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:37:03,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:03,128 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 10:37:03,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:03,230 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 10:37:03,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057422705] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:03,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:37:03,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-20 10:37:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599273894] [2022-11-20 10:37:03,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:03,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:37:03,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:03,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:37:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:37:03,233 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 10:37:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:03,465 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-20 10:37:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:37:03,466 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 10:37:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:03,470 INFO L225 Difference]: With dead ends: 92 [2022-11-20 10:37:03,472 INFO L226 Difference]: Without dead ends: 91 [2022-11-20 10:37:03,474 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 10:37:03,476 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 10:37:03,479 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 10:37:03,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-20 10:37:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2022-11-20 10:37:03,489 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 10:37:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2022-11-20 10:37:03,492 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 22 [2022-11-20 10:37:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:03,493 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2022-11-20 10:37:03,493 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 10:37:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2022-11-20 10:37:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 10:37:03,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:03,494 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-20 10:37:03,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:03,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:37:03,699 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 10:37:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1208760848, now seen corresponding path program 2 times [2022-11-20 10:37:03,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:03,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139447055] [2022-11-20 10:37:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:03,960 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 10:37:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:03,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139447055] [2022-11-20 10:37:03,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139447055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:03,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777548552] [2022-11-20 10:37:03,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:37:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:03,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:03,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:37:04,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:37:04,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:04,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:37:04,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:04,317 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 10:37:04,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:04,604 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 10:37:04,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777548552] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:04,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:37:04,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-11-20 10:37:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465514720] [2022-11-20 10:37:04,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 10:37:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:04,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 10:37:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:37:04,607 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 10:37:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:05,306 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2022-11-20 10:37:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:37:05,307 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 10:37:05,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:05,308 INFO L225 Difference]: With dead ends: 159 [2022-11-20 10:37:05,308 INFO L226 Difference]: Without dead ends: 127 [2022-11-20 10:37:05,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=480, Invalid=2172, Unknown=0, NotChecked=0, Total=2652 [2022-11-20 10:37:05,311 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 10:37:05,311 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 10:37:05,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-20 10:37:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2022-11-20 10:37:05,327 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 10:37:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2022-11-20 10:37:05,329 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 34 [2022-11-20 10:37:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:05,330 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2022-11-20 10:37:05,330 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 10:37:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2022-11-20 10:37:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:37:05,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:05,334 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-20 10:37:05,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 10:37:05,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:05,539 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 10:37:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1182445582, now seen corresponding path program 2 times [2022-11-20 10:37:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:05,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487126065] [2022-11-20 10:37:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:05,804 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 10:37:05,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487126065] [2022-11-20 10:37:05,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487126065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914001533] [2022-11-20 10:37:05,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:37:05,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:05,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:05,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:37:05,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:37:05,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:05,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:37:05,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:06,023 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 10:37:06,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:06,361 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 10:37:06,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914001533] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:06,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:37:06,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2022-11-20 10:37:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58404663] [2022-11-20 10:37:06,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:06,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 10:37:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 10:37:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 10:37:06,364 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 10:37:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:06,954 INFO L93 Difference]: Finished difference Result 180 states and 193 transitions. [2022-11-20 10:37:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:37:06,954 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 10:37:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:06,956 INFO L225 Difference]: With dead ends: 180 [2022-11-20 10:37:06,956 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 10:37:06,957 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 10:37:06,959 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:06,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 364 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:37:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 10:37:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2022-11-20 10:37:06,980 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 10:37:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 182 transitions. [2022-11-20 10:37:06,981 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 182 transitions. Word has length 50 [2022-11-20 10:37:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:06,981 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 182 transitions. [2022-11-20 10:37:06,981 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 10:37:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 182 transitions. [2022-11-20 10:37:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 10:37:06,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:06,989 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-20 10:37:07,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:07,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:07,194 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 10:37:07,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash -448735504, now seen corresponding path program 3 times [2022-11-20 10:37:07,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:07,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142671518] [2022-11-20 10:37:07,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:07,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:07,846 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 10:37:07,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:07,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142671518] [2022-11-20 10:37:07,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142671518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:07,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305494107] [2022-11-20 10:37:07,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:37:07,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:07,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:07,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:37:07,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:37:07,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:07,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:37:07,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:08,027 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 10:37:08,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:08,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305494107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:08,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:37:08,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-11-20 10:37:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090843713] [2022-11-20 10:37:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:08,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:37:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:37:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:37:08,031 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 10:37:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:08,124 INFO L93 Difference]: Finished difference Result 179 states and 193 transitions. [2022-11-20 10:37:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:37:08,125 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 10:37:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:08,129 INFO L225 Difference]: With dead ends: 179 [2022-11-20 10:37:08,129 INFO L226 Difference]: Without dead ends: 178 [2022-11-20 10:37:08,130 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 10:37:08,132 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 10:37:08,133 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 10:37:08,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-20 10:37:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2022-11-20 10:37:08,158 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 10:37:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2022-11-20 10:37:08,159 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 76 [2022-11-20 10:37:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:08,162 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2022-11-20 10:37:08,162 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 10:37:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2022-11-20 10:37:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 10:37:08,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:08,169 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:08,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 10:37:08,380 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 10:37:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1025898680, now seen corresponding path program 1 times [2022-11-20 10:37:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781408087] [2022-11-20 10:37:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 212 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:08,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:08,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781408087] [2022-11-20 10:37:08,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781408087] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:08,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377195797] [2022-11-20 10:37:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:08,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:08,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:08,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:08,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:37:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:09,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 10:37:09,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:09,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:09,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377195797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:09,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:37:09,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [24] total 30 [2022-11-20 10:37:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641657928] [2022-11-20 10:37:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:09,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 10:37:09,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:09,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 10:37:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-20 10:37:09,377 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:09,849 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2022-11-20 10:37:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 10:37:09,849 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 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 10:37:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:09,851 INFO L225 Difference]: With dead ends: 178 [2022-11-20 10:37:09,851 INFO L226 Difference]: Without dead ends: 177 [2022-11-20 10:37:09,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-11-20 10:37:09,852 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:09,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 283 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:37:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-20 10:37:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 167. [2022-11-20 10:37:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 134 states have (on average 1.044776119402985) internal successors, (140), 135 states have internal predecessors, (140), 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 10:37:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2022-11-20 10:37:09,874 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 77 [2022-11-20 10:37:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:09,875 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2022-11-20 10:37:09,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2022-11-20 10:37:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 10:37:09,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:09,880 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-20 10:37:09,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:10,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:37:10,086 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 10:37:10,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1081620878, now seen corresponding path program 3 times [2022-11-20 10:37:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:10,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062230739] [2022-11-20 10:37:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-20 10:37:10,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:10,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062230739] [2022-11-20 10:37:10,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062230739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:10,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:10,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 10:37:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953263928] [2022-11-20 10:37:10,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:10,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:37:10,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:10,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:37:10,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:37:10,666 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:11,026 INFO L93 Difference]: Finished difference Result 202 states and 206 transitions. [2022-11-20 10:37:11,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:37:11,026 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 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 10:37:11,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:11,027 INFO L225 Difference]: With dead ends: 202 [2022-11-20 10:37:11,027 INFO L226 Difference]: Without dead ends: 112 [2022-11-20 10:37:11,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:37:11,029 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 163 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:11,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 214 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:37:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-20 10:37:11,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-20 10:37:11,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 89 states have (on average 1.0) internal successors, (89), 89 states have internal predecessors, (89), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 10:37:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 111 transitions. [2022-11-20 10:37:11,039 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 111 transitions. Word has length 106 [2022-11-20 10:37:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:11,039 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 111 transitions. [2022-11-20 10:37:11,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 111 transitions. [2022-11-20 10:37:11,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 10:37:11,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:11,041 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:11,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:37:11,042 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 10:37:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1045830572, now seen corresponding path program 1 times [2022-11-20 10:37:11,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:11,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169797689] [2022-11-20 10:37:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:37:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:37:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-20 10:37:11,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:11,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169797689] [2022-11-20 10:37:11,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169797689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:11,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:11,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:11,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220708020] [2022-11-20 10:37:11,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:11,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:11,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:11,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:11,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:11,337 INFO L87 Difference]: Start difference. First operand 112 states and 111 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 10:37:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:11,345 INFO L93 Difference]: Finished difference Result 112 states and 111 transitions. [2022-11-20 10:37:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:11,345 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 111 [2022-11-20 10:37:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:11,346 INFO L225 Difference]: With dead ends: 112 [2022-11-20 10:37:11,346 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:37:11,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 10:37:11,348 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 10:37:11,348 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 10:37:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:37:11,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:37:11,349 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 10:37:11,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:37:11,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2022-11-20 10:37:11,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:11,349 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:37:11,350 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 10:37:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:37:11,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:37:11,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-20 10:37:11,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-20 10:37:11,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-20 10:37:11,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-20 10:37:11,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-20 10:37:11,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-20 10:37:11,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-20 10:37:11,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-20 10:37:11,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:37:11,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:37:12,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 10:37:12,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-20 10:37:12,006 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-20 10:37:12,007 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (<= 10 |ULTIMATE.start_main_~a~0#1|) (= |ULTIMATE.start_main_~b~0#1| 0) (<= |ULTIMATE.start_main_~a~0#1| 10)) [2022-11-20 10:37:12,007 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-20 10:37:12,007 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-20 10:37:12,007 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-20 10:37:12,007 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,008 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,009 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-20 10:37:12,010 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-20 10:37:12,010 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,011 INFO L895 garLoopResultBuilder]: At program point L9-4(line 9) the Hoare annotation is: (and (or (not (<= 10 |sum_#in~m|)) (not (<= |sum_#in~n| 0)) (not (< |sum_#in~m| 2147483644)) (not (<= 0 |sum_#in~n|))) (or (not (<= |sum_#in~n| 5)) (not (<= |sum_#in~m| 5)) (and (< 4 sum_~n) (<= sum_~n 5) (<= 5 sum_~m) (<= sum_~m 5)) (not (< 4 |sum_#in~n|)) (not (<= 5 |sum_#in~m|))) (or (not (<= 1 |sum_#in~m|)) (not (<= |sum_#in~m| 1)) (not (<= 9 |sum_#in~n|)) (and (<= sum_~n 9) (<= 1 sum_~m) (<= sum_~m 1) (<= 9 sum_~n)) (not (<= |sum_#in~n| 9))) (or (not (<= |sum_#in~m| 4)) (not (<= |sum_#in~n| 6)) (and (<= sum_~m 4) (<= 4 sum_~m) (<= 6 sum_~n) (<= sum_~n 6)) (not (<= 4 |sum_#in~m|)) (not (<= 6 |sum_#in~n|))) (or (not (<= 2 |sum_#in~m|)) (not (<= 8 |sum_#in~n|)) (and (<= 8 sum_~n) (<= sum_~m 2) (<= sum_~n 8) (<= 2 sum_~m)) (not (<= |sum_#in~n| 8)) (not (<= |sum_#in~m| 2))) (or (not (<= 8 |sum_#in~m|)) (not (< |sum_#in~m| 2147483642)) (not (< 1 |sum_#in~n|)) (not (<= |sum_#in~n| 2)) (and (<= sum_~n 2) (<= 8 sum_~m) (< sum_~m 2147483642) (< 1 sum_~n))) (or (not (<= |sum_#in~m| 6)) (not (<= 6 |sum_#in~m|)) (not (<= |sum_#in~n| 4)) (and (< 3 sum_~n) (<= sum_~n 4) (<= 6 sum_~m) (<= sum_~m 6)) (not (< 3 |sum_#in~n|))) (or (and (< sum_~m 2147483643) (<= sum_~n 1) (< 0 sum_~n) (<= 9 sum_~m)) (not (< 0 |sum_#in~n|)) (not (< |sum_#in~m| 2147483643)) (not (<= |sum_#in~n| 1)) (not (<= 9 |sum_#in~m|))) (or (not (<= |sum_#in~m| 3)) (not (<= 7 |sum_#in~n|)) (not (<= 3 |sum_#in~m|)) (and (<= 3 sum_~m) (<= sum_~m 3) (<= 7 sum_~n) (<= sum_~n 7)) (not (<= |sum_#in~n| 7))) (or (and (< sum_~m 2147483641) (< 2 sum_~n) (<= sum_~n 3) (<= 7 sum_~m)) (not (<= 7 |sum_#in~m|)) (not (<= |sum_#in~n| 3)) (not (< 2 |sum_#in~n|)) (not (< |sum_#in~m| 2147483641))) (or (not (<= |sum_#in~n| 10)) (not (<= 10 |sum_#in~n|)) (not (= |sum_#in~m| 0)) (and (<= 10 sum_~n) (<= sum_~n 10) (= sum_~m 0)))) [2022-11-20 10:37:12,011 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-20 10:37:12,011 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-20 10:37:12,014 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:12,017 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:37:12,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:37:12 BoogieIcfgContainer [2022-11-20 10:37:12,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:37:12,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:37:12,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:37:12,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:37:12,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:00" (3/4) ... [2022-11-20 10:37:12,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:37:12,032 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-20 10:37:12,036 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 10:37:12,036 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 10:37:12,036 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:37:12,037 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:37:12,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:37:12,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:37:12,067 INFO L158 Benchmark]: Toolchain (without parser) took 12396.17ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 147.8MB in the beginning and 101.0MB in the end (delta: 46.8MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2022-11-20 10:37:12,067 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:12,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.33ms. Allocated memory is still 178.3MB. Free memory was 147.8MB in the beginning and 150.6MB in the end (delta: -2.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-20 10:37:12,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.12ms. Allocated memory is still 178.3MB. Free memory was 150.4MB in the beginning and 149.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:12,068 INFO L158 Benchmark]: Boogie Preprocessor took 17.76ms. Allocated memory is still 178.3MB. Free memory was 149.2MB in the beginning and 148.5MB in the end (delta: 770.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:12,068 INFO L158 Benchmark]: RCFGBuilder took 297.45ms. Allocated memory is still 178.3MB. Free memory was 148.5MB in the beginning and 137.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:37:12,069 INFO L158 Benchmark]: TraceAbstraction took 11761.78ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 136.7MB in the beginning and 103.1MB in the end (delta: 33.6MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-11-20 10:37:12,069 INFO L158 Benchmark]: Witness Printer took 44.52ms. Allocated memory is still 213.9MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:12,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.33ms. Allocated memory is still 178.3MB. Free memory was 147.8MB in the beginning and 150.6MB in the end (delta: -2.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.12ms. Allocated memory is still 178.3MB. Free memory was 150.4MB in the beginning and 149.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.76ms. Allocated memory is still 178.3MB. Free memory was 149.2MB in the beginning and 148.5MB in the end (delta: 770.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.45ms. Allocated memory is still 178.3MB. Free memory was 148.5MB in the beginning and 137.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11761.78ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 136.7MB in the beginning and 103.1MB in the end (delta: 33.6MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. * Witness Printer took 44.52ms. Allocated memory is still 213.9MB. Free memory was 103.1MB in the beginning and 101.0MB 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: 11.7s, OverallIterations: 12, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1595 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1581 mSDsluCounter, 1909 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1611 mSDsCounter, 338 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2233 IncrementalHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 338 mSolverCounterUnsat, 298 mSDtfsCounter, 2233 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=8, InterpolantAutomatonStates: 174, 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, 12 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 33 PreInvPairs, 33 NumberOfFragments, 322 HoareAnnotationTreeSize, 33 FomulaSimplifications, 322 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 720 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 812 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 908 ConstructedInterpolants, 0 QuantifiedInterpolants, 2341 SizeOfPredicates, 32 NumberOfNonLiveVariables, 670 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 2085/3161 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 10:37:12,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e092ee-70d3-4c60-b6ea-19c4b93d7bdf/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