./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/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_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/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 64bit --witnessprinter.graph.data.programhash 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5 --- 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 12:49:42,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:49:42,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:49:42,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:49:42,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:49:42,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:49:42,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:49:42,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:49:42,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:49:42,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:49:42,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:49:42,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:49:42,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:49:42,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:49:42,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:49:42,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:49:42,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:49:42,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:49:42,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:49:42,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:49:42,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:49:42,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:49:42,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:49:42,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:49:42,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:49:42,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:49:42,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:49:42,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:49:42,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:49:42,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:49:42,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:49:42,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:49:42,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:49:42,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:49:42,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:49:42,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:49:42,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:49:42,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:49:42,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:49:42,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:49:42,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:49:42,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 12:49:42,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:49:42,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:49:42,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:49:42,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:49:42,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:49:42,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:49:42,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:49:42,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:49:42,345 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:49:42,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:49:42,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:49:42,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:49:42,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:49:42,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:49:42,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:49:42,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:49:42,350 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:49:42,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:49:42,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:49:42,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:49:42,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:49:42,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:49:42,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:49:42,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:42,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:49:42,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:49:42,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:49:42,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:49:42,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:49:42,353 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:49:42,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:49:42,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:49:42,355 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_0310d5a1-98d6-4276-a2df-7236ba729913/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5 [2022-11-20 12:49:42,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:49:42,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:49:42,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:49:42,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:49:42,707 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:49:42,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2022-11-20 12:49:45,708 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:46,122 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:46,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2022-11-20 12:49:46,151 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/data/c3065fcf9/ec72b58b94284e038a00eae4944ded17/FLAG25629719a [2022-11-20 12:49:46,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/data/c3065fcf9/ec72b58b94284e038a00eae4944ded17 [2022-11-20 12:49:46,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:46,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:46,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:46,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:46,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:46,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:46" (1/1) ... [2022-11-20 12:49:46,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1297b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:46, skipping insertion in model container [2022-11-20 12:49:46,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:46" (1/1) ... [2022-11-20 12:49:46,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:46,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:46,664 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:49:47,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:47,383 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:49:47,411 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:49:47,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:47,593 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:49:47,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47 WrapperNode [2022-11-20 12:49:47,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:47,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:47,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:49:47,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:49:47,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,645 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2022-11-20 12:49:47,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:47,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:49:47,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:49:47,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:49:47,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:49:47,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:49:47,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:49:47,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:49:47,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (1/1) ... [2022-11-20 12:49:47,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:47,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:49:47,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:49:47,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:49:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 12:49:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 12:49:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 12:49:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 12:49:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 12:49:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:49:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 12:49:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:49:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:49:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:49:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:49:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 12:49:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:49:47,947 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:49:47,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:49:48,171 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:49:48,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:49:48,177 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:49:48,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:48 BoogieIcfgContainer [2022-11-20 12:49:48,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:49:48,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:49:48,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:49:48,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:49:48,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:49:46" (1/3) ... [2022-11-20 12:49:48,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a16ee31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:48, skipping insertion in model container [2022-11-20 12:49:48,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:47" (2/3) ... [2022-11-20 12:49:48,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a16ee31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:48, skipping insertion in model container [2022-11-20 12:49:48,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:48" (3/3) ... [2022-11-20 12:49:48,188 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2022-11-20 12:49:48,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:49:48,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 12:49:48,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:49:48,260 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;@54092175, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:49:48,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 12:49:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.6) internal successors, (40), 33 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 12:49:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:49:48,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:48,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:48,280 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:49:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash 738338144, now seen corresponding path program 1 times [2022-11-20 12:49:48,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:48,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800595711] [2022-11-20 12:49:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:48,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:48,546 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 12:49:48,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:48,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800595711] [2022-11-20 12:49:48,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800595711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:48,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:48,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:48,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512759112] [2022-11-20 12:49:48,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:48,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:49:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:49:48,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:49:48,607 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.6) internal successors, (40), 33 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:48,629 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2022-11-20 12:49:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:49:48,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-20 12:49:48,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:48,638 INFO L225 Difference]: With dead ends: 68 [2022-11-20 12:49:48,638 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 12:49:48,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:49:48,643 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:48,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 12:49:48,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-20 12:49:48,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 25 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:49:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-20 12:49:48,705 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 12 [2022-11-20 12:49:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:48,708 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-20 12:49:48,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-20 12:49:48,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:49:48,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:48,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:48,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:49:48,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:49:48,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash 571865221, now seen corresponding path program 1 times [2022-11-20 12:49:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:48,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901031229] [2022-11-20 12:49:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:48,933 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 12:49:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:48,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901031229] [2022-11-20 12:49:48,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901031229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:48,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:48,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:48,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129316738] [2022-11-20 12:49:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:48,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:49:48,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:48,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:49:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:49:48,938 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:48,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:48,972 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-20 12:49:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:49:48,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-20 12:49:48,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:48,974 INFO L225 Difference]: With dead ends: 30 [2022-11-20 12:49:48,974 INFO L226 Difference]: Without dead ends: 29 [2022-11-20 12:49:48,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:49:48,976 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:48,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 41 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-20 12:49:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-20 12:49:48,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 24 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:49:48,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-20 12:49:48,983 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 14 [2022-11-20 12:49:48,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:48,984 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-20 12:49:48,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-20 12:49:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:49:48,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:48,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:48,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:49:48,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:49:48,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash 547952746, now seen corresponding path program 1 times [2022-11-20 12:49:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:48,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814675309] [2022-11-20 12:49:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,055 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 12:49:49,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:49,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814675309] [2022-11-20 12:49:49,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814675309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:49,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:49,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:49,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028702823] [2022-11-20 12:49:49,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:49,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:49:49,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:49,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:49:49,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:49:49,058 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:49,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:49,079 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2022-11-20 12:49:49,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:49:49,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-20 12:49:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:49,080 INFO L225 Difference]: With dead ends: 51 [2022-11-20 12:49:49,081 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 12:49:49,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:49:49,082 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:49,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 54 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 12:49:49,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2022-11-20 12:49:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:49:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-20 12:49:49,098 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 15 [2022-11-20 12:49:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:49,099 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-20 12:49:49,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:49:49,099 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-20 12:49:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 12:49:49,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:49,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:49:49,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:49:49,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -918621471, now seen corresponding path program 1 times [2022-11-20 12:49:49,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:49,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312774346] [2022-11-20 12:49:49,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:49:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:49:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:49,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312774346] [2022-11-20 12:49:49,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312774346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:49,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:49,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:49,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284360875] [2022-11-20 12:49:49,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:49,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:49:49,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:49,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:49:49,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:49:49,181 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:49:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:49,191 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-20 12:49:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:49:49,192 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-20 12:49:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:49,193 INFO L225 Difference]: With dead ends: 31 [2022-11-20 12:49:49,193 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 12:49:49,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 12:49:49,195 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:49,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 12:49:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-20 12:49:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:49:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-20 12:49:49,203 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2022-11-20 12:49:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:49,204 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-20 12:49:49,204 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:49:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-20 12:49:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 12:49:49,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:49,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:49,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:49:49,206 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:49:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1587505583, now seen corresponding path program 1 times [2022-11-20 12:49:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:49,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949053049] [2022-11-20 12:49:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:49:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:49:49,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:49,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949053049] [2022-11-20 12:49:49,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949053049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:49,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:49,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:49,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759296641] [2022-11-20 12:49:49,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:49,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:49:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:49:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:49:49,384 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:49:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:49,400 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-20 12:49:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:49:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-20 12:49:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:49,403 INFO L225 Difference]: With dead ends: 30 [2022-11-20 12:49:49,403 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:49:49,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 12:49:49,405 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:49,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:49,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:49:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:49:49,407 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 12:49:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:49:49,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-20 12:49:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:49,408 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:49:49,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:49:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:49:49,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:49:49,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 12:49:49,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 12:49:49,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 12:49:49,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 12:49:49,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:49:49,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:49:49,477 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 12:49:49,478 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 12:49:49,478 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-20 12:49:49,478 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 12:49:49,478 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 12:49:49,479 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 12:49:49,479 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 12:49:49,479 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2022-11-20 12:49:49,479 INFO L902 garLoopResultBuilder]: At program point L1609(line 1609) the Hoare annotation is: true [2022-11-20 12:49:49,480 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 12:49:49,480 INFO L899 garLoopResultBuilder]: For program point L1609-1(line 1609) no Hoare annotation was computed. [2022-11-20 12:49:49,480 INFO L895 garLoopResultBuilder]: At program point L1572(line 1572) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0))) [2022-11-20 12:49:49,480 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:49:49,481 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-20 12:49:49,481 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:49:49,481 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:49:49,481 INFO L899 garLoopResultBuilder]: For program point L1593(line 1593) no Hoare annotation was computed. [2022-11-20 12:49:49,481 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2022-11-20 12:49:49,482 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 12:49:49,482 INFO L895 garLoopResultBuilder]: At program point L1585loopEntry(lines 1585 1589) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647)) [2022-11-20 12:49:49,482 INFO L895 garLoopResultBuilder]: At program point L1552loopEntry(lines 1552 1566) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0))) [2022-11-20 12:49:49,483 INFO L895 garLoopResultBuilder]: At program point L1585-2(lines 1582 1598) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (and (<= .cse0 0) (<= 0 .cse0) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647))) [2022-11-20 12:49:49,483 INFO L895 garLoopResultBuilder]: At program point L1552-2(lines 1549 1580) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 12:49:49,483 INFO L899 garLoopResultBuilder]: For program point L1581(lines 1581 1598) no Hoare annotation was computed. [2022-11-20 12:49:49,483 INFO L899 garLoopResultBuilder]: For program point L1548(lines 1548 1580) no Hoare annotation was computed. [2022-11-20 12:49:49,484 INFO L902 garLoopResultBuilder]: At program point L1610(lines 1604 1611) the Hoare annotation is: true [2022-11-20 12:49:49,484 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1577) no Hoare annotation was computed. [2022-11-20 12:49:49,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-20 12:49:49,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:49:49,485 INFO L902 garLoopResultBuilder]: At program point L1594(line 1594) the Hoare annotation is: true [2022-11-20 12:49:49,485 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2022-11-20 12:49:49,485 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed. [2022-11-20 12:49:49,485 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1603) no Hoare annotation was computed. [2022-11-20 12:49:49,486 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2022-11-20 12:49:49,486 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0))) [2022-11-20 12:49:49,486 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 12:49:49,486 INFO L899 garLoopResultBuilder]: For program point L1571(line 1571) no Hoare annotation was computed. [2022-11-20 12:49:49,487 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed. [2022-11-20 12:49:49,490 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 12:49:49,493 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:49:49,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:49:49 BoogieIcfgContainer [2022-11-20 12:49:49,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:49:49,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:49:49,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:49:49,509 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:49:49,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:48" (3/4) ... [2022-11-20 12:49:49,513 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:49:49,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 12:49:49,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 12:49:49,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 12:49:49,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 12:49:49,525 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 12:49:49,525 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:49:49,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:49:49,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:49:49,563 INFO L158 Benchmark]: Toolchain (without parser) took 3385.37ms. Allocated memory was 142.6MB in the beginning and 178.3MB in the end (delta: 35.7MB). Free memory was 96.0MB in the beginning and 133.5MB in the end (delta: -37.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:49:49,563 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:49:49,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1413.77ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 56.4MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.64ms. Allocated memory is still 142.6MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,564 INFO L158 Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 51.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,565 INFO L158 Benchmark]: RCFGBuilder took 501.89ms. Allocated memory is still 142.6MB. Free memory was 51.6MB in the beginning and 106.0MB in the end (delta: -54.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,565 INFO L158 Benchmark]: TraceAbstraction took 1327.01ms. Allocated memory was 142.6MB in the beginning and 178.3MB in the end (delta: 35.7MB). Free memory was 105.0MB in the beginning and 136.6MB in the end (delta: -31.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,566 INFO L158 Benchmark]: Witness Printer took 53.35ms. Allocated memory is still 178.3MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:49:49,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1413.77ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 56.4MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.64ms. Allocated memory is still 142.6MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.50ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 51.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.89ms. Allocated memory is still 142.6MB. Free memory was 51.6MB in the beginning and 106.0MB in the end (delta: -54.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1327.01ms. Allocated memory was 142.6MB in the beginning and 178.3MB in the end (delta: 35.7MB). Free memory was 105.0MB in the beginning and 136.6MB in the end (delta: -31.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 53.35ms. Allocated memory is still 178.3MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: 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 3 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 162 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 22 PreInvPairs, 31 NumberOfFragments, 65 HoareAnnotationTreeSize, 22 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1585]: Loop Invariant Derived loop invariant: 0 <= data + 2 && data <= 2147483647 - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: data <= 2147483647 && !(data + 2147483648 <= 0) - InvariantResult [Line: 1582]: Loop Invariant Derived loop invariant: (data + 2 <= 0 && 0 <= data + 2) && data <= 2147483647 - InvariantResult [Line: 1549]: Loop Invariant Derived loop invariant: data <= 2147483647 - InvariantResult [Line: 1604]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 12:49:49,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0310d5a1-98d6-4276-a2df-7236ba729913/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