./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 --- 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-4e7fbc6 [2022-11-23 15:45:23,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:45:23,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:45:23,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:45:23,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:45:23,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:45:23,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:45:23,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:45:23,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:45:23,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:45:23,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:45:23,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:45:23,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:45:23,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:45:23,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:45:23,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:45:23,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:45:23,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:45:23,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:45:23,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:45:23,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:45:23,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:45:23,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:45:23,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:45:23,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:45:23,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:45:23,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:45:23,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:45:23,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:45:23,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:45:23,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:45:23,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:45:23,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:45:23,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:45:23,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:45:23,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:45:23,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:45:23,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:45:23,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:45:23,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:45:23,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:45:23,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:45:23,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:45:23,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:45:23,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:45:23,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:45:23,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:45:23,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:45:23,908 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:45:23,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:45:23,909 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:45:23,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:45:23,910 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:45:23,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:45:23,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:45:23,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:45:23,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:45:23,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:45:23,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:45:23,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:45:23,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:45:23,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:45:23,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:45:23,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:45:23,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:45:23,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:45:23,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:45:23,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:45:23,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:45:23,916 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:45:23,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:45:23,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:45:23,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:45:23,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:45:23,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:45:23,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:45:23,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:23,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:45:23,918 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:45:23,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:45:23,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:45:23,919 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:45:23,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:45:23,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:45:23,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:45:23,920 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_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 [2022-11-23 15:45:24,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:45:24,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:45:24,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:45:24,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:45:24,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:45:24,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/num_conversion_2.c [2022-11-23 15:45:27,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:45:27,612 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:45:27,613 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c [2022-11-23 15:45:27,620 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/b916266ce/8be6bdfa831b432386954428c674be39/FLAG4b6d721ea [2022-11-23 15:45:27,639 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/b916266ce/8be6bdfa831b432386954428c674be39 [2022-11-23 15:45:27,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:45:27,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:45:27,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:27,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:45:27,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:45:27,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea36b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27, skipping insertion in model container [2022-11-23 15:45:27,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:45:27,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:45:27,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c[685,698] [2022-11-23 15:45:27,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:27,886 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:45:27,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c[685,698] [2022-11-23 15:45:27,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:27,917 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:45:27,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27 WrapperNode [2022-11-23 15:45:27,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:27,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:27,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:45:27,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:45:27,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,954 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-11-23 15:45:27,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:27,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:45:27,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:45:27,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:45:27,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,976 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:45:27,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:45:27,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:45:27,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:45:27,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (1/1) ... [2022-11-23 15:45:27,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:28,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:45:28,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:45:28,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:45:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:45:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:45:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:45:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:45:28,134 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:45:28,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:45:28,277 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:45:28,334 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:45:28,335 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:45:28,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:28 BoogieIcfgContainer [2022-11-23 15:45:28,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:45:28,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:45:28,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:45:28,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:45:28,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:45:27" (1/3) ... [2022-11-23 15:45:28,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c950f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:45:28, skipping insertion in model container [2022-11-23 15:45:28,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:27" (2/3) ... [2022-11-23 15:45:28,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c950f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:45:28, skipping insertion in model container [2022-11-23 15:45:28,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:28" (3/3) ... [2022-11-23 15:45:28,352 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2022-11-23 15:45:28,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:45:28,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-23 15:45:28,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:45:28,451 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=FINITE_AUTOMATA, 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;@2d5956c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:45:28,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-23 15:45:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.9) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-11-23 15:45:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 15:45:28,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:28,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 15:45:28,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-11-23 15:45:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash 78194, now seen corresponding path program 1 times [2022-11-23 15:45:28,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:45:28,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292189143] [2022-11-23 15:45:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:28,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:45:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:28,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:45:28,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292189143] [2022-11-23 15:45:28,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292189143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:45:28,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:45:28,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:45:28,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572509068] [2022-11-23 15:45:28,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:45:28,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:45:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:45:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:45:28,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:28,826 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.9) internal successors, (19), 17 states have internal predecessors, (19), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-23 15:45:28,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:28,881 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-23 15:45:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:45:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-23 15:45:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:28,896 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:45:28,897 INFO L226 Difference]: Without dead ends: 13 [2022-11-23 15:45:28,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:28,909 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:28,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:45:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-23 15:45:28,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-23 15:45:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-23 15:45:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-23 15:45:28,960 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 3 [2022-11-23 15:45:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:45:28,975 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-23 15:45:28,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-23 15:45:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-23 15:45:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:45:28,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:28,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:45:28,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:45:28,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-11-23 15:45:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2424059, now seen corresponding path program 1 times [2022-11-23 15:45:28,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:45:28,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970304375] [2022-11-23 15:45:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:28,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:45:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:45:29,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:45:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:45:29,053 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:45:29,053 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:45:29,055 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-23 15:45:29,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-23 15:45:29,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-11-23 15:45:29,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-23 15:45:29,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-23 15:45:29,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-23 15:45:29,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-23 15:45:29,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:45:29,067 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:45:29,071 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:45:29,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:45:29 BoogieIcfgContainer [2022-11-23 15:45:29,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:45:29,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:45:29,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:45:29,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:45:29,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:28" (3/4) ... [2022-11-23 15:45:29,095 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:45:29,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:45:29,096 INFO L158 Benchmark]: Toolchain (without parser) took 1448.11ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 70.3MB in the end (delta: 32.9MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,096 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:45:29,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.61ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 110.2MB in the end (delta: -7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.19ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 108.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,098 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 107.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,099 INFO L158 Benchmark]: RCFGBuilder took 358.94ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 96.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,099 INFO L158 Benchmark]: TraceAbstraction took 748.76ms. Allocated memory is still 144.7MB. Free memory was 95.5MB in the beginning and 70.7MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:45:29,100 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 144.7MB. Free memory was 70.7MB in the beginning and 70.3MB in the end (delta: 376.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:45:29,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.61ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 110.2MB in the end (delta: -7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.19ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 108.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 107.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.94ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 96.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 748.76ms. Allocated memory is still 144.7MB. Free memory was 95.5MB in the beginning and 70.7MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 144.7MB. Free memory was 70.7MB in the beginning and 70.3MB in the end (delta: 376.5kB). There was no memory consumed. 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 - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L24] unsigned char x = __VERIFIER_nondet_uchar(); [L25] unsigned char y; [L26] unsigned char c; [L28] y = 0 [L29] c = 0 VAL [c=0, y=0] [L30] COND TRUE c < (unsigned char)8 VAL [c=0, y=0] [L31] ((unsigned char)1) << c VAL [c=0, y=0] - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:45:29,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 --- 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-4e7fbc6 [2022-11-23 15:45:31,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:45:31,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:45:31,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:45:31,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:45:31,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:45:31,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:45:31,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:45:31,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:45:31,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:45:31,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:45:31,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:45:31,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:45:31,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:45:31,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:45:31,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:45:31,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:45:31,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:45:31,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:45:31,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:45:31,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:45:31,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:45:31,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:45:31,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:45:31,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:45:31,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:45:31,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:45:31,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:45:31,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:45:31,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:45:31,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:45:31,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:45:31,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:45:31,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:45:31,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:45:31,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:45:31,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:45:31,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:45:31,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:45:31,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:45:31,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:45:31,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-23 15:45:31,914 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:45:31,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:45:31,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:45:31,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:45:31,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:45:31,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:45:31,918 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:45:31,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:45:31,919 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:45:31,919 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:45:31,920 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:45:31,920 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:45:31,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:45:31,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:45:31,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:45:31,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:45:31,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:45:31,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:45:31,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:45:31,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:45:31,923 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:45:31,924 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:45:31,924 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:45:31,924 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:45:31,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:45:31,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:45:31,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:45:31,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:45:31,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:45:31,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:45:31,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:45:31,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:31,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:45:31,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:45:31,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:45:31,928 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:45:31,928 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:45:31,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:45:31,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:45:31,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:45:31,929 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 [2022-11-23 15:45:32,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:45:32,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:45:32,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:45:32,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:45:32,299 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:45:32,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/num_conversion_2.c [2022-11-23 15:45:35,420 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:45:35,723 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:45:35,724 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c [2022-11-23 15:45:35,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/6d27bd19b/2b707c08dac64c7ca93db8a3ec241248/FLAG89839ca37 [2022-11-23 15:45:35,756 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/data/6d27bd19b/2b707c08dac64c7ca93db8a3ec241248 [2022-11-23 15:45:35,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:45:35,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:45:35,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:35,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:45:35,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:45:35,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:35" (1/1) ... [2022-11-23 15:45:35,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49843d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:35, skipping insertion in model container [2022-11-23 15:45:35,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:35" (1/1) ... [2022-11-23 15:45:35,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:45:35,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:45:36,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c[685,698] [2022-11-23 15:45:36,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:36,070 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:45:36,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/sv-benchmarks/c/bitvector/num_conversion_2.c[685,698] [2022-11-23 15:45:36,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:36,127 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:45:36,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36 WrapperNode [2022-11-23 15:45:36,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:36,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:36,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:45:36,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:45:36,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,176 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-11-23 15:45:36,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:36,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:45:36,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:45:36,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:45:36,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:45:36,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:45:36,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:45:36,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:45:36,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (1/1) ... [2022-11-23 15:45:36,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:45:36,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:45:36,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:45:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:45:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:45:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:45:36,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:45:36,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:45:36,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:45:36,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:45:36,715 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:45:36,718 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:45:36,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:36 BoogieIcfgContainer [2022-11-23 15:45:36,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:45:36,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:45:36,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:45:36,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:45:36,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:45:35" (1/3) ... [2022-11-23 15:45:36,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319f245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:45:36, skipping insertion in model container [2022-11-23 15:45:36,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:36" (2/3) ... [2022-11-23 15:45:36,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319f245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:45:36, skipping insertion in model container [2022-11-23 15:45:36,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:36" (3/3) ... [2022-11-23 15:45:36,746 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2022-11-23 15:45:36,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:45:36,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-23 15:45:36,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:45:36,842 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=FINITE_AUTOMATA, 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;@531e5abc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:45:36,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-23 15:45:36,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 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) [2022-11-23 15:45:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:45:36,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:36,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:45:36,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-11-23 15:45:36,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-23 15:45:36,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:45:36,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517695171] [2022-11-23 15:45:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:45:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:45:36,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:45:36,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:45:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:36,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:45:36,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:45:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:37,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:45:37,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:45:37,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517695171] [2022-11-23 15:45:37,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517695171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:45:37,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:45:37,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:45:37,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597848334] [2022-11-23 15:45:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:45:37,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:45:37,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:45:37,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:45:37,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:37,061 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 15:45:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:37,146 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-11-23 15:45:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:45:37,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-11-23 15:45:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:37,158 INFO L225 Difference]: With dead ends: 44 [2022-11-23 15:45:37,159 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 15:45:37,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:37,166 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:37,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:45:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 15:45:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-11-23 15:45:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-11-23 15:45:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-23 15:45:37,212 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 4 [2022-11-23 15:45:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:45:37,213 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-23 15:45:37,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 15:45:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-23 15:45:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:45:37,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:37,215 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:45:37,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:45:37,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:45:37,433 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-11-23 15:45:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:37,434 INFO L85 PathProgramCache]: Analyzing trace with hash -845121802, now seen corresponding path program 1 times [2022-11-23 15:45:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:45:37,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281781896] [2022-11-23 15:45:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:37,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:45:37,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:45:37,438 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:45:37,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:45:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:37,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:45:37,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:45:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:37,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:45:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:37,684 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:45:37,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281781896] [2022-11-23 15:45:37,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281781896] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:45:37,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1592876247] [2022-11-23 15:45:37,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:37,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:45:37,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:45:37,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:45:37,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 15:45:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:37,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:45:37,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:45:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:37,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:45:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:45:37,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1592876247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:45:37,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135261454] [2022-11-23 15:45:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:37,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:45:37,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:45:37,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:45:37,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:45:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:37,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:45:37,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:45:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:45:37,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:45:37,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135261454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:45:37,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:45:37,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3, 3, 3] total 6 [2022-11-23 15:45:37,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211957839] [2022-11-23 15:45:37,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:45:37,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:45:37,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:45:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:45:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:45:37,926 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 15:45:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:37,947 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-23 15:45:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:45:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-11-23 15:45:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:37,948 INFO L225 Difference]: With dead ends: 18 [2022-11-23 15:45:37,948 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:45:37,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:45:37,950 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:37,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:45:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:45:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:45:37,952 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) [2022-11-23 15:45:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:45:37,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-23 15:45:37,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:45:37,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:45:37,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 15:45:37,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:45:37,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:45:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-23 15:45:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-23 15:45:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-11-23 15:45:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-23 15:45:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-23 15:45:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-23 15:45:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-23 15:45:37,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:45:38,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:45:38,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:45:38,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:45:38,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:45:38,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,570 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-11-23 15:45:38,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:45:38,570 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 35) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-23 15:45:38,571 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-23 15:45:38,572 INFO L902 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2022-11-23 15:45:38,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-23 15:45:38,572 INFO L902 garLoopResultBuilder]: At program point L40(lines 22 41) the Hoare annotation is: true [2022-11-23 15:45:38,572 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-11-23 15:45:38,572 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-11-23 15:45:38,572 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2022-11-23 15:45:38,572 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 15:45:38,573 INFO L902 garLoopResultBuilder]: At program point L30-2(lines 30 37) the Hoare annotation is: true [2022-11-23 15:45:38,574 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 37) no Hoare annotation was computed. [2022-11-23 15:45:38,574 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-23 15:45:38,577 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:45:38,579 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:45:38,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:45:38 BoogieIcfgContainer [2022-11-23 15:45:38,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:45:38,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:45:38,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:45:38,587 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:45:38,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:45:36" (3/4) ... [2022-11-23 15:45:38,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:45:38,611 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 15:45:38,611 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:45:38,612 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:45:38,612 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:45:38,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:45:38,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:45:38,646 INFO L158 Benchmark]: Toolchain (without parser) took 2882.30ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 33.3MB in the end (delta: 25.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,646 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:45:38,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.58ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 47.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.82ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,648 INFO L158 Benchmark]: Boogie Preprocessor took 57.41ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 44.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,648 INFO L158 Benchmark]: RCFGBuilder took 498.87ms. Allocated memory is still 79.7MB. Free memory was 44.8MB in the beginning and 53.3MB in the end (delta: -8.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,649 INFO L158 Benchmark]: TraceAbstraction took 1848.19ms. Allocated memory is still 79.7MB. Free memory was 52.6MB in the beginning and 35.9MB in the end (delta: 16.7MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,649 INFO L158 Benchmark]: Witness Printer took 58.36ms. Allocated memory is still 79.7MB. Free memory was 35.9MB in the beginning and 33.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:45:38,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.58ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 47.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.82ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.41ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 44.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.87ms. Allocated memory is still 79.7MB. Free memory was 44.8MB in the beginning and 53.3MB in the end (delta: -8.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1848.19ms. Allocated memory is still 79.7MB. Free memory was 52.6MB in the beginning and 35.9MB in the end (delta: 16.7MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 58.36ms. Allocated memory is still 79.7MB. Free memory was 35.9MB in the beginning and 33.3MB in the end (delta: 2.6MB). 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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 1 procedures, 25 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 22 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/10 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 7 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:45:38,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0e43eb-a996-4e82-96a0-a3a3d5085bb8/bin/utaipan-Q6hlc19bkW/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