./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba --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 64bit --witnessprinter.graph.data.programhash 56542e2c6eb76c8887d2541223feac6447670efff3cec9c0e3d78d962713e671 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:00:14,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:00:14,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:00:14,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:00:14,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:00:14,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:00:14,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:00:14,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:00:14,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:00:14,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:00:14,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:00:14,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:00:14,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:00:14,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:00:14,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:00:14,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:00:14,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:00:14,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:00:14,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:00:14,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:00:14,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:00:14,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:00:14,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:00:14,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:00:14,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:00:14,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:00:14,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:00:14,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:00:14,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:00:14,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:00:14,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:00:14,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:00:14,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:00:14,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:00:14,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:00:14,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:00:14,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:00:14,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:00:14,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:00:14,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:00:14,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:00:14,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 02:00:14,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:00:14,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:00:14,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:00:14,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:00:14,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:00:14,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:00:14,825 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:00:14,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:00:14,826 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:00:14,826 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:00:14,826 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:00:14,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:00:14,826 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:00:14,827 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:00:14,827 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:00:14,827 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:00:14,827 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:00:14,827 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:00:14,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:00:14,828 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:00:14,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:00:14,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:00:14,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:00:14,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:00:14,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:00:14,830 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:00:14,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:00:14,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:00:14,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:00:14,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:00:14,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:00:14,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:00:14,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:00:14,831 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:00:14,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:00:14,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:00:14,832 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:00:14,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:00:14,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:00:14,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:00:14,833 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_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56542e2c6eb76c8887d2541223feac6447670efff3cec9c0e3d78d962713e671 [2022-11-22 02:00:15,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:00:15,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:00:15,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:00:15,162 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:00:15,162 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:00:15,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_17_good.i [2022-11-22 02:00:18,166 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:00:18,562 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:00:18,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_17_good.i [2022-11-22 02:00:18,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/data/31e6a7022/85d5efd873ad477794945323511fee52/FLAG4289653ed [2022-11-22 02:00:18,606 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/data/31e6a7022/85d5efd873ad477794945323511fee52 [2022-11-22 02:00:18,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:00:18,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:00:18,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:00:18,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:00:18,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:00:18,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:00:18" (1/1) ... [2022-11-22 02:00:18,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108abbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:18, skipping insertion in model container [2022-11-22 02:00:18,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:00:18" (1/1) ... [2022-11-22 02:00:18,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:00:18,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:00:19,095 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 02:00:19,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:00:19,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:00:19,611 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 02:00:19,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:00:19,815 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:00:19,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19 WrapperNode [2022-11-22 02:00:19,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:00:19,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:00:19,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:00:19,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:00:19,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,906 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 111 [2022-11-22 02:00:19,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:00:19,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:00:19,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:00:19,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:00:19,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,955 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:00:19,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:00:19,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:00:19,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:00:19,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (1/1) ... [2022-11-22 02:00:19,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:00:19,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:19,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:00:20,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:00:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-22 02:00:20,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-22 02:00:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 02:00:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 02:00:20,044 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 02:00:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:00:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:00:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:00:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:00:20,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:00:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:00:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 02:00:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:00:20,200 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:00:20,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:00:20,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:00:20,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:00:20,498 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:00:20,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:20 BoogieIcfgContainer [2022-11-22 02:00:20,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:00:20,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:00:20,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:00:20,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:00:20,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:00:18" (1/3) ... [2022-11-22 02:00:20,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e5cbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:00:20, skipping insertion in model container [2022-11-22 02:00:20,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:19" (2/3) ... [2022-11-22 02:00:20,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e5cbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:00:20, skipping insertion in model container [2022-11-22 02:00:20,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:20" (3/3) ... [2022-11-22 02:00:20,510 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_17_good.i [2022-11-22 02:00:20,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:00:20,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-22 02:00:20,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:00:20,584 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;@73b0764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:00:20,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-22 02:00:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 40 states have internal predecessors, (44), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:00:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:00:20,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:20,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:20,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:20,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1608326316, now seen corresponding path program 1 times [2022-11-22 02:00:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:20,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828958110] [2022-11-22 02:00:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:20,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:20,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:20,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828958110] [2022-11-22 02:00:20,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828958110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:20,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:20,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:20,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367652976] [2022-11-22 02:00:20,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:20,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:00:20,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:00:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:00:20,996 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 40 states have internal predecessors, (44), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:21,062 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2022-11-22 02:00:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:00:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-22 02:00:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:21,074 INFO L225 Difference]: With dead ends: 91 [2022-11-22 02:00:21,076 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 02:00:21,082 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 [2022-11-22 02:00:21,088 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 7 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:21,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 89 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 02:00:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-11-22 02:00:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 39 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2022-11-22 02:00:21,128 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 9 [2022-11-22 02:00:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:21,129 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2022-11-22 02:00:21,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-11-22 02:00:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:00:21,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:21,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:21,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:00:21,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:21,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1612069833, now seen corresponding path program 1 times [2022-11-22 02:00:21,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:21,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097139584] [2022-11-22 02:00:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:21,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:21,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097139584] [2022-11-22 02:00:21,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097139584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:21,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:21,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214229401] [2022-11-22 02:00:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:21,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:21,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:21,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:21,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:21,321 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:21,376 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2022-11-22 02:00:21,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:21,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-22 02:00:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:21,378 INFO L225 Difference]: With dead ends: 52 [2022-11-22 02:00:21,378 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 02:00:21,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:21,380 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:21,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 122 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 02:00:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-22 02:00:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.6) internal successors, (48), 44 states have internal predecessors, (48), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:00:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-22 02:00:21,389 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 9 [2022-11-22 02:00:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:21,389 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-22 02:00:21,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-22 02:00:21,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:00:21,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:21,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:21,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:00:21,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1050740214, now seen corresponding path program 1 times [2022-11-22 02:00:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:21,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097160426] [2022-11-22 02:00:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:00:21,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097160426] [2022-11-22 02:00:21,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097160426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:21,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:21,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:00:21,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222310622] [2022-11-22 02:00:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:21,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:00:21,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:21,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:00:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:00:21,543 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:21,590 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-11-22 02:00:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:00:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-22 02:00:21,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:21,592 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:00:21,592 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 02:00:21,593 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 [2022-11-22 02:00:21,594 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:21,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 02:00:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-22 02:00:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:00:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2022-11-22 02:00:21,602 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 14 [2022-11-22 02:00:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:21,602 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2022-11-22 02:00:21,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-11-22 02:00:21,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:00:21,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:21,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:21,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:00:21,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:21,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:21,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1050649201, now seen corresponding path program 1 times [2022-11-22 02:00:21,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:21,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269797687] [2022-11-22 02:00:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:00:21,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:21,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269797687] [2022-11-22 02:00:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269797687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:21,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:21,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735288332] [2022-11-22 02:00:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:21,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:00:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:00:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:00:21,700 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:21,753 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-11-22 02:00:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:00:21,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-22 02:00:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:21,757 INFO L225 Difference]: With dead ends: 79 [2022-11-22 02:00:21,757 INFO L226 Difference]: Without dead ends: 61 [2022-11-22 02:00:21,757 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 [2022-11-22 02:00:21,758 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:21,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 82 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-22 02:00:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2022-11-22 02:00:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 44 states have internal predecessors, (48), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:00:21,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-22 02:00:21,772 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 14 [2022-11-22 02:00:21,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:21,773 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-22 02:00:21,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:21,773 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-22 02:00:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:00:21,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:21,774 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:21,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:00:21,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:21,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:21,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1054483731, now seen corresponding path program 1 times [2022-11-22 02:00:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:21,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861242827] [2022-11-22 02:00:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:21,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:21,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:21,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861242827] [2022-11-22 02:00:21,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861242827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:00:21,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068590712] [2022-11-22 02:00:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:21,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:21,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:21,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:00:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:22,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:00:22,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:22,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:22,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068590712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:22,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:00:22,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 02:00:22,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618247830] [2022-11-22 02:00:22,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:22,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:22,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:22,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:00:22,119 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:22,183 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2022-11-22 02:00:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:00:22,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-22 02:00:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:22,189 INFO L225 Difference]: With dead ends: 84 [2022-11-22 02:00:22,190 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 02:00:22,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:22,193 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:22,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 83 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 02:00:22,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-22 02:00:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 37 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-11-22 02:00:22,199 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 14 [2022-11-22 02:00:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:22,199 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-11-22 02:00:22,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-11-22 02:00:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:00:22,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:22,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:22,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:22,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:22,413 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:22,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1786791819, now seen corresponding path program 1 times [2022-11-22 02:00:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:22,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392836483] [2022-11-22 02:00:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:22,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392836483] [2022-11-22 02:00:22,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392836483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:22,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:22,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898015674] [2022-11-22 02:00:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:22,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:22,547 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:22,589 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-11-22 02:00:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:22,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-22 02:00:22,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:22,592 INFO L225 Difference]: With dead ends: 43 [2022-11-22 02:00:22,592 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 02:00:22,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:22,597 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:22,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 77 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:22,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 02:00:22,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-22 02:00:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-22 02:00:22,622 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 15 [2022-11-22 02:00:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:22,623 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-22 02:00:22,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:00:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-22 02:00:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:00:22,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:22,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:22,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:00:22,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:22,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1240779688, now seen corresponding path program 1 times [2022-11-22 02:00:22,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:22,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647070340] [2022-11-22 02:00:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:22,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:00:22,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:22,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647070340] [2022-11-22 02:00:22,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647070340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:22,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:22,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:22,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199282381] [2022-11-22 02:00:22,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:22,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:22,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:22,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:22,737 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:00:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:22,795 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2022-11-22 02:00:22,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:22,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-22 02:00:22,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:22,798 INFO L225 Difference]: With dead ends: 52 [2022-11-22 02:00:22,799 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 02:00:22,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:22,800 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:22,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 109 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 02:00:22,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-22 02:00:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.393939393939394) internal successors, (46), 43 states have internal predecessors, (46), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 02:00:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-22 02:00:22,822 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2022-11-22 02:00:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:22,823 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-22 02:00:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:00:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-22 02:00:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 02:00:22,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:22,825 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:22,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:00:22,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:22,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:22,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1705571826, now seen corresponding path program 1 times [2022-11-22 02:00:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:22,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816071279] [2022-11-22 02:00:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:00:22,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:22,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816071279] [2022-11-22 02:00:22,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816071279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:22,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:22,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:22,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652413295] [2022-11-22 02:00:22,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:22,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:22,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:22,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:22,934 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:22,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:22,981 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2022-11-22 02:00:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:22,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-22 02:00:22,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:22,982 INFO L225 Difference]: With dead ends: 68 [2022-11-22 02:00:22,982 INFO L226 Difference]: Without dead ends: 53 [2022-11-22 02:00:22,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:22,984 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:22,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 113 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:22,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-22 02:00:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-22 02:00:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 46 states have internal predecessors, (49), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 02:00:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2022-11-22 02:00:22,991 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 22 [2022-11-22 02:00:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:22,992 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2022-11-22 02:00:22,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-11-22 02:00:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 02:00:22,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:22,993 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:22,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:00:22,993 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:22,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:22,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1563850409, now seen corresponding path program 1 times [2022-11-22 02:00:22,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:22,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110148094] [2022-11-22 02:00:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 02:00:23,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:23,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110148094] [2022-11-22 02:00:23,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110148094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:00:23,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962353937] [2022-11-22 02:00:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:23,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:23,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:23,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:23,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:00:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:23,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:00:23,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:00:23,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:23,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962353937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:23,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:00:23,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 02:00:23,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64182157] [2022-11-22 02:00:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:23,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:23,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:00:23,219 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:00:23,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:23,275 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2022-11-22 02:00:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:00:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2022-11-22 02:00:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:23,276 INFO L225 Difference]: With dead ends: 77 [2022-11-22 02:00:23,276 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 02:00:23,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:23,277 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:23,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 95 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 02:00:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-22 02:00:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 30 states have (on average 1.3) internal successors, (39), 37 states have internal predecessors, (39), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-22 02:00:23,285 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 26 [2022-11-22 02:00:23,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:23,287 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-22 02:00:23,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:00:23,287 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-22 02:00:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 02:00:23,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:23,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:23,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 02:00:23,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 02:00:23,498 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1227042898, now seen corresponding path program 1 times [2022-11-22 02:00:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:23,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571647314] [2022-11-22 02:00:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:00:23,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571647314] [2022-11-22 02:00:23,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571647314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:00:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85237673] [2022-11-22 02:00:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:23,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:23,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:23,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:23,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:00:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:23,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:00:23,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:00:23,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:23,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85237673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:23,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:00:23,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 02:00:23,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835245525] [2022-11-22 02:00:23,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:23,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:23,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:23,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:00:23,718 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:23,752 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-22 02:00:23,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:00:23,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-22 02:00:23,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:23,753 INFO L225 Difference]: With dead ends: 57 [2022-11-22 02:00:23,753 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 02:00:23,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:23,754 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:23,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 91 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 02:00:23,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-22 02:00:23,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 33 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-11-22 02:00:23,760 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 25 [2022-11-22 02:00:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:23,760 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-11-22 02:00:23,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-22 02:00:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 02:00:23,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:23,762 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:23,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:23,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:00:23,968 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 616384075, now seen corresponding path program 1 times [2022-11-22 02:00:23,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:23,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452195432] [2022-11-22 02:00:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:23,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:00:24,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:24,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452195432] [2022-11-22 02:00:24,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452195432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:24,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:24,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:24,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944363988] [2022-11-22 02:00:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:24,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:24,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:24,055 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:24,089 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-11-22 02:00:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:24,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-22 02:00:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:24,090 INFO L225 Difference]: With dead ends: 44 [2022-11-22 02:00:24,090 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 02:00:24,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:24,091 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:24,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 96 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 02:00:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-22 02:00:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 36 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 02:00:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-22 02:00:24,097 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 26 [2022-11-22 02:00:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:24,098 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-22 02:00:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:00:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-22 02:00:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 02:00:24,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:24,099 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:24,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:00:24,100 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1000781317, now seen corresponding path program 1 times [2022-11-22 02:00:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:24,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894786660] [2022-11-22 02:00:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:00:24,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:24,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894786660] [2022-11-22 02:00:24,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894786660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:24,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:24,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:24,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190448499] [2022-11-22 02:00:24,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:24,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:24,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:24,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:24,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:24,178 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 02:00:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:24,227 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-22 02:00:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-22 02:00:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:24,228 INFO L225 Difference]: With dead ends: 48 [2022-11-22 02:00:24,228 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 02:00:24,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:24,229 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:24,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 97 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 02:00:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-22 02:00:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 39 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:00:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-22 02:00:24,236 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2022-11-22 02:00:24,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:24,236 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-22 02:00:24,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 02:00:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-22 02:00:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 02:00:24,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:24,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:24,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:00:24,238 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:00:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:24,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1386619387, now seen corresponding path program 1 times [2022-11-22 02:00:24,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:24,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597126229] [2022-11-22 02:00:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:24,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:00:24,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597126229] [2022-11-22 02:00:24,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597126229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:00:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136240477] [2022-11-22 02:00:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:24,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:24,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:24,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:24,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:00:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:24,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:00:24,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:00:24,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:24,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136240477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:24,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:00:24,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 02:00:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214767247] [2022-11-22 02:00:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:24,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:00:24,484 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 02:00:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:24,527 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-22 02:00:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:00:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-22 02:00:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:24,529 INFO L225 Difference]: With dead ends: 49 [2022-11-22 02:00:24,529 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:00:24,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:24,530 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:24,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 108 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:00:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:00:24,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:00:24,531 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) [2022-11-22 02:00:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:00:24,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-11-22 02:00:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:24,532 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:00:24,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 02:00:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:00:24,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:00:24,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-22 02:00:24,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-22 02:00:24,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-22 02:00:24,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-22 02:00:24,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-22 02:00:24,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-22 02:00:24,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-22 02:00:24,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-22 02:00:24,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-22 02:00:24,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-22 02:00:24,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-22 02:00:24,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-22 02:00:24,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:24,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:24,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:00:24,871 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-22 02:00:24,871 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-22 02:00:24,871 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-22 02:00:24,871 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-22 02:00:24,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-22 02:00:24,872 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) (= |ULTIMATE.start_goodB2G_~i~1#1| 0)) [2022-11-22 02:00:24,872 INFO L899 garLoopResultBuilder]: For program point L1563-1(lines 1557 1564) no Hoare annotation was computed. [2022-11-22 02:00:24,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2022-11-22 02:00:24,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-22 02:00:24,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:00:24,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2022-11-22 02:00:24,873 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-22 02:00:24,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-22 02:00:24,873 INFO L899 garLoopResultBuilder]: For program point L1557(lines 1557 1564) no Hoare annotation was computed. [2022-11-22 02:00:24,873 INFO L899 garLoopResultBuilder]: For program point L1590-2(line 1590) no Hoare annotation was computed. [2022-11-22 02:00:24,874 INFO L899 garLoopResultBuilder]: For program point L1590-3(line 1590) no Hoare annotation was computed. [2022-11-22 02:00:24,874 INFO L895 garLoopResultBuilder]: At program point L1590-4(lines 1590 1597) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse3 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (= |ULTIMATE.start_goodG2B_~j~0#1| 0) .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~data~1#1| 2) .cse3) (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~j~0#1|) .cse1 .cse2 .cse3))) [2022-11-22 02:00:24,874 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2022-11-22 02:00:24,874 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2022-11-22 02:00:24,874 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed. [2022-11-22 02:00:24,875 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1590) no Hoare annotation was computed. [2022-11-22 02:00:24,875 INFO L899 garLoopResultBuilder]: For program point L1567-2(line 1567) no Hoare annotation was computed. [2022-11-22 02:00:24,875 INFO L899 garLoopResultBuilder]: For program point L1567-3(line 1567) no Hoare annotation was computed. [2022-11-22 02:00:24,875 INFO L895 garLoopResultBuilder]: At program point L1567-4(lines 1567 1579) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (= |ULTIMATE.start_goodB2G_~k~0#1| 0) .cse1) (and .cse0 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) .cse1))) [2022-11-22 02:00:24,875 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1590) no Hoare annotation was computed. [2022-11-22 02:00:24,875 INFO L902 garLoopResultBuilder]: At program point L1609(line 1609) the Hoare annotation is: true [2022-11-22 02:00:24,876 INFO L902 garLoopResultBuilder]: At program point L1609-1(line 1609) the Hoare annotation is: true [2022-11-22 02:00:24,876 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-22 02:00:24,876 INFO L899 garLoopResultBuilder]: For program point L1593(line 1593) no Hoare annotation was computed. [2022-11-22 02:00:24,876 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2022-11-22 02:00:24,877 INFO L895 garLoopResultBuilder]: At program point L1577(line 1577) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-22 02:00:24,877 INFO L899 garLoopResultBuilder]: For program point L1577-1(lines 1567 1579) no Hoare annotation was computed. [2022-11-22 02:00:24,877 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1578) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point L1586-3(line 1586) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point L1553-3(line 1553) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point L1586-4(line 1586) no Hoare annotation was computed. [2022-11-22 02:00:24,878 INFO L899 garLoopResultBuilder]: For program point L1553-4(line 1553) no Hoare annotation was computed. [2022-11-22 02:00:24,879 INFO L895 garLoopResultBuilder]: At program point L1586-5(lines 1586 1589) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse2 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) .cse1 (= |ULTIMATE.start_goodG2B_~data~1#1| 2) .cse2) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~h~0#1| 0)))) [2022-11-22 02:00:24,879 INFO L895 garLoopResultBuilder]: At program point L1553-5(lines 1553 1566) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) .cse0) (and .cse0 (= |ULTIMATE.start_goodB2G_~i~1#1| 0)))) [2022-11-22 02:00:24,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-22 02:00:24,879 INFO L895 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodG2B_~j~0#1| 0) (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-22 02:00:24,879 INFO L899 garLoopResultBuilder]: For program point L1595-1(lines 1590 1597) no Hoare annotation was computed. [2022-11-22 02:00:24,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2022-11-22 02:00:24,880 INFO L899 garLoopResultBuilder]: For program point L1571(line 1571) no Hoare annotation was computed. [2022-11-22 02:00:24,880 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed. [2022-11-22 02:00:24,884 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:24,886 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:00:24,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:00:24 BoogieIcfgContainer [2022-11-22 02:00:24,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:00:24,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:00:24,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:00:24,918 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:00:24,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:20" (3/4) ... [2022-11-22 02:00:24,921 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:00:24,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-22 02:00:24,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-22 02:00:24,931 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-22 02:00:24,932 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-22 02:00:24,932 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:00:24,932 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:00:24,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:00:24,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:00:24,978 INFO L158 Benchmark]: Toolchain (without parser) took 6368.16ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 133.2MB in the beginning and 95.2MB in the end (delta: 38.1MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,978 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:00:24,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1206.72ms. Allocated memory is still 169.9MB. Free memory was 133.2MB in the beginning and 84.5MB in the end (delta: 48.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.20ms. Allocated memory is still 169.9MB. Free memory was 84.5MB in the beginning and 82.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,979 INFO L158 Benchmark]: Boogie Preprocessor took 60.69ms. Allocated memory is still 169.9MB. Free memory was 82.0MB in the beginning and 80.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,979 INFO L158 Benchmark]: RCFGBuilder took 533.14ms. Allocated memory is still 169.9MB. Free memory was 80.3MB in the beginning and 62.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,980 INFO L158 Benchmark]: TraceAbstraction took 4413.26ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 61.5MB in the beginning and 98.3MB in the end (delta: -36.8MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,980 INFO L158 Benchmark]: Witness Printer took 59.61ms. Allocated memory is still 205.5MB. Free memory was 98.3MB in the beginning and 95.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:24,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1206.72ms. Allocated memory is still 169.9MB. Free memory was 133.2MB in the beginning and 84.5MB in the end (delta: 48.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.20ms. Allocated memory is still 169.9MB. Free memory was 84.5MB in the beginning and 82.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.69ms. Allocated memory is still 169.9MB. Free memory was 82.0MB in the beginning and 80.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.14ms. Allocated memory is still 169.9MB. Free memory was 80.3MB in the beginning and 62.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4413.26ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 61.5MB in the beginning and 98.3MB in the end (delta: -36.8MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 59.61ms. Allocated memory is still 205.5MB. Free memory was 98.3MB in the beginning and 95.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 1240 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 757 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 397 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 483 mSDtfsCounter, 397 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=8, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 32 PreInvPairs, 46 NumberOfFragments, 174 HoareAnnotationTreeSize, 32 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 4 NumberOfNonLiveVariables, 681 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 74/78 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 12 specifications checked. All of them hold - InvariantResult [Line: 1590]: Loop Invariant Derived loop invariant: (((((1 <= i && j == 0) && 1 <= h) && 1 <= k) && data == 2) && 0 <= data + 2147483648) || ((((1 <= i && 1 <= j) && 1 <= h) && 1 <= k) && 0 <= data + 2147483648) - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: ((1 <= i && k == 0) && 0 <= data + 2147483648) || ((1 <= i && 1 <= k) && 0 <= data + 2147483648) - InvariantResult [Line: 1609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1586]: Loop Invariant Derived loop invariant: ((((1 <= i && 1 <= h) && 1 <= k) && data == 2) && 0 <= data + 2147483648) || (((1 <= i && 1 <= k) && 0 <= data + 2147483648) && h == 0) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: (1 <= i && 0 <= data + 2147483648) || (0 <= data + 2147483648 && i == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 02:00:25,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8768d21-a138-46e3-ae79-c4347d9961a9/bin/utaipan-g80aRyZoba/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