./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a --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 9e241e364e7e84705de2023588aa213286a3b079544bac52ed0c220994808714 --- 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-b5237d8 [2022-11-21 09:02:19,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:02:19,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:02:19,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:02:19,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:02:19,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:02:19,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:02:19,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:02:19,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:02:19,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:02:19,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:02:19,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:02:19,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:02:19,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:02:19,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:02:19,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:02:19,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:02:19,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:02:19,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:02:19,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:02:19,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:02:19,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:02:19,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:02:19,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:02:19,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:02:19,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:02:19,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:02:19,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:02:19,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:02:19,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:02:19,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:02:19,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:02:19,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:02:19,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:02:19,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:02:19,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:02:19,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:02:19,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:02:19,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:02:19,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:02:19,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:02:19,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 09:02:19,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:02:19,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:02:19,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:02:19,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:02:19,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:02:19,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:02:19,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:02:19,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:02:19,698 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:02:19,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:02:19,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:02:19,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:02:19,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:02:19,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:02:19,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:02:19,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:02:19,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 09:02:19,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:02:19,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:02:19,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:02:19,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:02:19,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:02:19,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:02:19,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:02:19,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:02:19,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:02:19,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:02:19,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:02:19,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:02:19,705 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:02:19,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:02:19,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:02:19,706 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_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e241e364e7e84705de2023588aa213286a3b079544bac52ed0c220994808714 [2022-11-21 09:02:20,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:02:20,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:02:20,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:02:20,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:02:20,106 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:02:20,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_good.i [2022-11-21 09:02:23,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:02:24,129 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:02:24,130 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_good.i [2022-11-21 09:02:24,158 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/data/2d29b97a9/2f40ebcb91b940e19752aff6332a120a/FLAG84e108745 [2022-11-21 09:02:24,177 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/data/2d29b97a9/2f40ebcb91b940e19752aff6332a120a [2022-11-21 09:02:24,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:02:24,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:02:24,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:02:24,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:02:24,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:02:24,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:24" (1/1) ... [2022-11-21 09:02:24,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134b89a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:24, skipping insertion in model container [2022-11-21 09:02:24,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:24" (1/1) ... [2022-11-21 09:02:24,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:02:24,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:02:24,769 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 09:02:25,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:02:25,511 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:02:25,537 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 09:02:25,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:02:25,747 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:02:25,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25 WrapperNode [2022-11-21 09:02:25,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:02:25,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:02:25,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:02:25,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:02:25,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,836 INFO L138 Inliner]: procedures = 501, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2022-11-21 09:02:25,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:02:25,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:02:25,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:02:25,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:02:25,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:02:25,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:02:25,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:02:25,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:02:25,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2022-11-21 09:02:25,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:02:25,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:02:25,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:02:25,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:02:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 09:02:25,996 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 09:02:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 09:02:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 09:02:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:02:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:02:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:02:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 09:02:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:02:26,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:02:26,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:02:26,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:02:26,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:02:26,463 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 09:02:26,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:26 BoogieIcfgContainer [2022-11-21 09:02:26,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:02:26,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:02:26,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:02:26,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:02:26,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:24" (1/3) ... [2022-11-21 09:02:26,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25df39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:26, skipping insertion in model container [2022-11-21 09:02:26,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (2/3) ... [2022-11-21 09:02:26,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25df39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:26, skipping insertion in model container [2022-11-21 09:02:26,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:26" (3/3) ... [2022-11-21 09:02:26,477 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_18_good.i [2022-11-21 09:02:26,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:02:26,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 09:02:26,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:02:26,621 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;@14cc0eae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:02:26,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 09:02:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-21 09:02:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 09:02:26,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:02:26,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:02:26,637 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)] === [2022-11-21 09:02:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:02:26,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1789006991, now seen corresponding path program 1 times [2022-11-21 09:02:26,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:02:26,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64256112] [2022-11-21 09:02:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:02:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:02:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:02:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:02:27,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:02:27,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64256112] [2022-11-21 09:02:27,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64256112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:02:27,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:02:27,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:02:27,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142438007] [2022-11-21 09:02:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:02:27,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:02:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:02:27,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:02:27,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:02:27,324 INFO L87 Difference]: Start difference. First operand has 36 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-21 09:02:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:02:27,438 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-11-21 09:02:27,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:02:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-11-21 09:02:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:02:27,455 INFO L225 Difference]: With dead ends: 36 [2022-11-21 09:02:27,456 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 09:02:27,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:02:27,463 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:02:27,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 83 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:02:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 09:02:27,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-21 09:02:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 09:02:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-21 09:02:27,512 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 13 [2022-11-21 09:02:27,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:02:27,516 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-21 09:02:27,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-21 09:02:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-21 09:02:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 09:02:27,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:02:27,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:02:27,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:02:27,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 09:02:27,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:02:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash 375358188, now seen corresponding path program 1 times [2022-11-21 09:02:27,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:02:27,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306755988] [2022-11-21 09:02:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:02:27,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:02:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:02:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:02:27,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:02:27,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306755988] [2022-11-21 09:02:27,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306755988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:02:27,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:02:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:02:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038510161] [2022-11-21 09:02:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:02:27,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:02:27,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:02:27,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:02:27,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:02:27,757 INFO L87 Difference]: Start difference. First operand 27 states and 30 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) [2022-11-21 09:02:27,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:02:27,774 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-21 09:02:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:02:27,775 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 [2022-11-21 09:02:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:02:27,776 INFO L225 Difference]: With dead ends: 27 [2022-11-21 09:02:27,777 INFO L226 Difference]: Without dead ends: 26 [2022-11-21 09:02:27,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:02:27,779 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:02:27,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:02:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-21 09:02:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-21 09:02:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 09:02:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-21 09:02:27,787 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2022-11-21 09:02:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:02:27,788 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-21 09:02:27,788 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) [2022-11-21 09:02:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-21 09:02:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 09:02:27,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:02:27,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:02:27,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:02:27,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 09:02:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:02:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash 286884742, now seen corresponding path program 1 times [2022-11-21 09:02:27,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:02:27,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928681762] [2022-11-21 09:02:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:02:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:02:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:02:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:02:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 09:02:27,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:02:27,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928681762] [2022-11-21 09:02:27,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928681762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:02:27,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:02:27,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:02:27,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081360369] [2022-11-21 09:02:27,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:02:27,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:02:27,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:02:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:02:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:02:27,920 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-21 09:02:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:02:27,943 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-21 09:02:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:02:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21 [2022-11-21 09:02:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:02:27,945 INFO L225 Difference]: With dead ends: 26 [2022-11-21 09:02:27,945 INFO L226 Difference]: Without dead ends: 25 [2022-11-21 09:02:27,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:02:27,947 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:02:27,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 72 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:02:27,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-21 09:02:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-21 09:02:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 09:02:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-21 09:02:27,955 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 21 [2022-11-21 09:02:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:02:27,955 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-21 09:02:27,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-21 09:02:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-21 09:02:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 09:02:27,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:02:27,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:02:27,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:02:27,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 09:02:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:02:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash 303492485, now seen corresponding path program 1 times [2022-11-21 09:02:27,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:02:27,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170613685] [2022-11-21 09:02:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:02:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:02:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:02:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:02:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:02:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 09:02:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:02:28,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170613685] [2022-11-21 09:02:28,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170613685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:02:28,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:02:28,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:02:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657868042] [2022-11-21 09:02:28,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:02:28,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:02:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:02:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:02:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:02:28,082 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) [2022-11-21 09:02:28,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:02:28,115 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-11-21 09:02:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:02:28,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 [2022-11-21 09:02:28,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:02:28,118 INFO L225 Difference]: With dead ends: 25 [2022-11-21 09:02:28,118 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:02:28,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:02:28,124 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:02:28,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 72 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:02:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:02:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:02:28,135 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) [2022-11-21 09:02:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:02:28,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-21 09:02:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:02:28,136 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:02:28,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) [2022-11-21 09:02:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:02:28,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:02:28,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-21 09:02:28,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-21 09:02:28,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-21 09:02:28,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-21 09:02:28,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:02:28,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 09:02:28,238 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-21 09:02:28,238 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-21 09:02:28,239 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-21 09:02:28,239 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-21 09:02:28,239 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-21 09:02:28,239 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-21 09:02:28,239 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-21 09:02:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1559) no Hoare annotation was computed. [2022-11-21 09:02:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 09:02:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1578) no Hoare annotation was computed. [2022-11-21 09:02:28,241 INFO L895 garLoopResultBuilder]: At program point L1565(line 1565) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,241 INFO L899 garLoopResultBuilder]: For program point L1565-1(lines 1548 1567) no Hoare annotation was computed. [2022-11-21 09:02:28,241 INFO L895 garLoopResultBuilder]: At program point L1594(lines 1588 1595) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,241 INFO L895 garLoopResultBuilder]: At program point L1561(line 1561) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,241 INFO L899 garLoopResultBuilder]: For program point L1559(line 1559) no Hoare annotation was computed. [2022-11-21 09:02:28,242 INFO L899 garLoopResultBuilder]: For program point L1559-1(line 1559) no Hoare annotation was computed. [2022-11-21 09:02:28,242 INFO L895 garLoopResultBuilder]: At program point L1555(lines 1549 1567) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,242 INFO L895 garLoopResultBuilder]: At program point L1580(line 1580) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,243 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1568 1582) no Hoare annotation was computed. [2022-11-21 09:02:28,243 INFO L899 garLoopResultBuilder]: For program point L1578(line 1578) no Hoare annotation was computed. [2022-11-21 09:02:28,243 INFO L899 garLoopResultBuilder]: For program point L1578-1(line 1578) no Hoare annotation was computed. [2022-11-21 09:02:28,243 INFO L895 garLoopResultBuilder]: At program point L1572(lines 1569 1582) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647)) [2022-11-21 09:02:28,244 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 09:02:28,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1559) no Hoare annotation was computed. [2022-11-21 09:02:28,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1578) no Hoare annotation was computed. [2022-11-21 09:02:28,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 09:02:28,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 09:02:28,245 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,245 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2022-11-21 09:02:28,245 INFO L902 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: true [2022-11-21 09:02:28,246 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2022-11-21 09:02:28,246 INFO L899 garLoopResultBuilder]: For program point L1554(line 1554) no Hoare annotation was computed. [2022-11-21 09:02:28,246 INFO L895 garLoopResultBuilder]: At program point L1552(lines 1549 1567) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-21 09:02:28,246 INFO L899 garLoopResultBuilder]: For program point L1554-2(line 1554) no Hoare annotation was computed. [2022-11-21 09:02:28,247 INFO L899 garLoopResultBuilder]: For program point L1583(lines 1583 1587) no Hoare annotation was computed. [2022-11-21 09:02:28,247 INFO L895 garLoopResultBuilder]: At program point L1575(lines 1569 1582) 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))) [2022-11-21 09:02:28,251 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 09:02:28,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:02:28,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:02:28 BoogieIcfgContainer [2022-11-21 09:02:28,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:02:28,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:02:28,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:02:28,272 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:02:28,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:26" (3/4) ... [2022-11-21 09:02:28,276 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:02:28,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 09:02:28,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 09:02:28,289 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 09:02:28,290 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 09:02:28,290 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 09:02:28,290 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:02:28,337 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:02:28,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:02:28,338 INFO L158 Benchmark]: Toolchain (without parser) took 4156.41ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 119.8MB in the end (delta: 6.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,339 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 125.8MB. Free memory was 70.5MB in the beginning and 70.4MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:02:28,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1564.19ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 67.6MB in the end (delta: 58.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.72ms. Allocated memory is still 163.6MB. Free memory was 67.6MB in the beginning and 64.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,340 INFO L158 Benchmark]: Boogie Preprocessor took 35.09ms. Allocated memory is still 163.6MB. Free memory was 64.2MB in the beginning and 62.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:02:28,340 INFO L158 Benchmark]: RCFGBuilder took 593.54ms. Allocated memory is still 163.6MB. Free memory was 62.9MB in the beginning and 128.5MB in the end (delta: -65.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,341 INFO L158 Benchmark]: TraceAbstraction took 1801.97ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 122.9MB in the end (delta: 4.6MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,341 INFO L158 Benchmark]: Witness Printer took 66.35ms. Allocated memory is still 163.6MB. Free memory was 122.9MB in the beginning and 119.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:02:28,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 125.8MB. Free memory was 70.5MB in the beginning and 70.4MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1564.19ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 67.6MB in the end (delta: 58.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.72ms. Allocated memory is still 163.6MB. Free memory was 67.6MB in the beginning and 64.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.09ms. Allocated memory is still 163.6MB. Free memory was 64.2MB in the beginning and 62.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 593.54ms. Allocated memory is still 163.6MB. Free memory was 62.9MB in the beginning and 128.5MB in the end (delta: -65.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1801.97ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 122.9MB in the end (delta: 4.6MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 66.35ms. Allocated memory is still 163.6MB. Free memory was 122.9MB in the beginning and 119.8MB in the end (delta: 3.1MB). 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: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: 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, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 279 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 167 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 112 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 47 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 1569]: Loop Invariant Derived loop invariant: 0 <= data + 2 && data <= 2147483647 - InvariantResult [Line: 1549]: Loop Invariant Derived loop invariant: data <= 2147483647 - InvariantResult [Line: 1588]: Loop Invariant Derived loop invariant: data <= 2147483647 - InvariantResult [Line: 1549]: Loop Invariant Derived loop invariant: data <= 2147483647 - InvariantResult [Line: 1569]: Loop Invariant Derived loop invariant: (data + 2 <= 0 && 0 <= data + 2) && data <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-21 09:02:28,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa734464-50b3-4c50-838d-60c21333531b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE