./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/pnr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f --- 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-8393723 [2022-11-19 08:27:59,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:27:59,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:27:59,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:27:59,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:27:59,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:27:59,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:27:59,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:27:59,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:27:59,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:27:59,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:27:59,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:27:59,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:27:59,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:27:59,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:27:59,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:27:59,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:27:59,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:27:59,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:27:59,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:27:59,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:27:59,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:27:59,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:27:59,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:27:59,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:27:59,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:27:59,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:27:59,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:27:59,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:27:59,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:27:59,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:27:59,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:27:59,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:27:59,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:28:00,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:28:00,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:28:00,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:28:00,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:28:00,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:28:00,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:28:00,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:28:00,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:28:00,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:28:00,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:28:00,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:28:00,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:28:00,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:28:00,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:28:00,057 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:28:00,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:28:00,057 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:28:00,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:28:00,059 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:28:00,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:28:00,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:28:00,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:28:00,060 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:28:00,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:28:00,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:28:00,061 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:28:00,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:28:00,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:28:00,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:28:00,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:28:00,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:28:00,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:28:00,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:28:00,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:28:00,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:28:00,064 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:28:00,064 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:28:00,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:28:00,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:28:00,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:28:00,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:28:00,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:28:00,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:00,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:28:00,066 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:28:00,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:28:00,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:28:00,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:28:00,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:28:00,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:28:00,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:28:00,068 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_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f [2022-11-19 08:28:00,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:28:00,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:28:00,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:28:00,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:28:00,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:28:00,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/array-tiling/pnr2.c [2022-11-19 08:28:00,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/data/c04e1f28d/c0d203fe0ef84d13b6058f71f1bb0f85/FLAGfb94396b3 [2022-11-19 08:28:01,074 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:28:01,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/sv-benchmarks/c/array-tiling/pnr2.c [2022-11-19 08:28:01,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/data/c04e1f28d/c0d203fe0ef84d13b6058f71f1bb0f85/FLAGfb94396b3 [2022-11-19 08:28:01,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/data/c04e1f28d/c0d203fe0ef84d13b6058f71f1bb0f85 [2022-11-19 08:28:01,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:28:01,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:28:01,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:01,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:28:01,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:28:01,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd4df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01, skipping insertion in model container [2022-11-19 08:28:01,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:28:01,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:28:01,709 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/sv-benchmarks/c/array-tiling/pnr2.c[395,408] [2022-11-19 08:28:01,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:01,737 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:28:01,750 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/sv-benchmarks/c/array-tiling/pnr2.c[395,408] [2022-11-19 08:28:01,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:01,773 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:28:01,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01 WrapperNode [2022-11-19 08:28:01,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:01,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:01,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:28:01,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:28:01,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,814 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2022-11-19 08:28:01,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:01,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:28:01,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:28:01,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:28:01,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:28:01,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:28:01,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:28:01,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:28:01,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (1/1) ... [2022-11-19 08:28:01,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:01,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:01,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:28:01,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:28:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:28:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:28:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:28:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:28:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2022-11-19 08:28:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2022-11-19 08:28:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:28:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:28:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:28:02,057 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:28:02,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:28:02,307 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:28:02,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:28:02,340 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:28:02,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:02 BoogieIcfgContainer [2022-11-19 08:28:02,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:28:02,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:28:02,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:28:02,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:28:02,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:28:01" (1/3) ... [2022-11-19 08:28:02,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83e117a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:02, skipping insertion in model container [2022-11-19 08:28:02,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:01" (2/3) ... [2022-11-19 08:28:02,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83e117a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:02, skipping insertion in model container [2022-11-19 08:28:02,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:02" (3/3) ... [2022-11-19 08:28:02,354 INFO L112 eAbstractionObserver]: Analyzing ICFG pnr2.c [2022-11-19 08:28:02,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:28:02,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-19 08:28:02,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:28:02,435 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;@13f5c180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:28:02,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-19 08:28:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.8055555555555556) internal successors, (65), 58 states have internal predecessors, (65), 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) [2022-11-19 08:28:02,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:28:02,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:02,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:28:02,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:02,478 INFO L85 PathProgramCache]: Analyzing trace with hash 4777433, now seen corresponding path program 1 times [2022-11-19 08:28:02,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:02,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318571501] [2022-11-19 08:28:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:03,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:03,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318571501] [2022-11-19 08:28:03,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318571501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:03,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:03,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948140562] [2022-11-19 08:28:03,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:03,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:03,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:03,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:28:03,142 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.8055555555555556) internal successors, (65), 58 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:03,312 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2022-11-19 08:28:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:28:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 08:28:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:03,323 INFO L225 Difference]: With dead ends: 76 [2022-11-19 08:28:03,326 INFO L226 Difference]: Without dead ends: 57 [2022-11-19 08:28:03,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:28:03,334 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 177 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:03,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 56 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-19 08:28:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-19 08:28:03,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 53 states have internal predecessors, (57), 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) [2022-11-19 08:28:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-11-19 08:28:03,399 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 4 [2022-11-19 08:28:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:03,400 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-11-19 08:28:03,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-11-19 08:28:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:28:03,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:03,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:03,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:28:03,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:03,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash 670801822, now seen corresponding path program 1 times [2022-11-19 08:28:03,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:03,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122493131] [2022-11-19 08:28:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:03,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:03,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122493131] [2022-11-19 08:28:03,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122493131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:03,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:03,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:03,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727880386] [2022-11-19 08:28:03,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:03,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:28:03,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:28:03,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:28:03,597 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-19 08:28:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:03,713 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-11-19 08:28:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:28:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:28:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:03,715 INFO L225 Difference]: With dead ends: 62 [2022-11-19 08:28:03,715 INFO L226 Difference]: Without dead ends: 60 [2022-11-19 08:28:03,716 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 [2022-11-19 08:28:03,717 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 126 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-19 08:28:03,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-19 08:28:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 56 states have internal predecessors, (60), 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) [2022-11-19 08:28:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2022-11-19 08:28:03,727 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 9 [2022-11-19 08:28:03,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:03,728 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2022-11-19 08:28:03,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-19 08:28:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2022-11-19 08:28:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:28:03,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:03,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:28:03,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:03,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2112970410, now seen corresponding path program 1 times [2022-11-19 08:28:03,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:03,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542262827] [2022-11-19 08:28:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:03,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:03,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:03,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542262827] [2022-11-19 08:28:03,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542262827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:03,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:03,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:28:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133863792] [2022-11-19 08:28:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:03,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:28:03,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:28:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:03,836 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:28:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:03,977 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2022-11-19 08:28:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:28:03,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-19 08:28:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:03,979 INFO L225 Difference]: With dead ends: 107 [2022-11-19 08:28:03,979 INFO L226 Difference]: Without dead ends: 91 [2022-11-19 08:28:03,980 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 [2022-11-19 08:28:03,984 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 25 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:03,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 58 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-19 08:28:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2022-11-19 08:28:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 79 states have internal predecessors, (86), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:28:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2022-11-19 08:28:04,006 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 12 [2022-11-19 08:28:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:04,010 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2022-11-19 08:28:04,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:28:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2022-11-19 08:28:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:28:04,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:04,012 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:04,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:28:04,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash -625608269, now seen corresponding path program 1 times [2022-11-19 08:28:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:04,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572416042] [2022-11-19 08:28:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:04,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:04,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572416042] [2022-11-19 08:28:04,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572416042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:04,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298602054] [2022-11-19 08:28:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:04,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:04,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:04,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:04,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:28:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:04,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:28:04,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:04,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:04,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298602054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:04,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133675263] [2022-11-19 08:28:04,404 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 08:28:04,405 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:04,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:04,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:04,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:04,581 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-19 08:28:04,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-19 08:28:04,680 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:28:04,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:28:04,841 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:05,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [133675263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:05,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:05,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 15 [2022-11-19 08:28:05,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085189040] [2022-11-19 08:28:05,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:05,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:05,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:05,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:28:05,614 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:05,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:05,993 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-11-19 08:28:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:28:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:28:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:05,995 INFO L225 Difference]: With dead ends: 99 [2022-11-19 08:28:05,995 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 08:28:05,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:28:05,996 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 100 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:05,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 37 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:28:05,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 08:28:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2022-11-19 08:28:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 79 states have internal predecessors, (85), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:28:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-19 08:28:06,018 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 12 [2022-11-19 08:28:06,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:06,019 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-19 08:28:06,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:06,019 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-19 08:28:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 08:28:06,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:06,020 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] [2022-11-19 08:28:06,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:06,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:06,227 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:06,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:06,228 INFO L85 PathProgramCache]: Analyzing trace with hash -252383122, now seen corresponding path program 1 times [2022-11-19 08:28:06,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:06,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398835230] [2022-11-19 08:28:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:06,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:28:06,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398835230] [2022-11-19 08:28:06,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398835230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:06,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:06,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:06,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966968560] [2022-11-19 08:28:06,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:06,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:28:06,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:06,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:28:06,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:28:06,357 INFO L87 Difference]: Start difference. First operand 85 states and 93 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) [2022-11-19 08:28:06,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:06,473 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2022-11-19 08:28:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:28:06,473 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 [2022-11-19 08:28:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:06,474 INFO L225 Difference]: With dead ends: 90 [2022-11-19 08:28:06,475 INFO L226 Difference]: Without dead ends: 88 [2022-11-19 08:28:06,475 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 [2022-11-19 08:28:06,478 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 13 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:06,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 94 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:06,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-19 08:28:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-19 08:28:06,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 82 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:28:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2022-11-19 08:28:06,512 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 26 [2022-11-19 08:28:06,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:06,512 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2022-11-19 08:28:06,513 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) [2022-11-19 08:28:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2022-11-19 08:28:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 08:28:06,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:06,515 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:06,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:28:06,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 558688963, now seen corresponding path program 1 times [2022-11-19 08:28:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:06,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51734410] [2022-11-19 08:28:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:28:06,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:06,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51734410] [2022-11-19 08:28:06,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51734410] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:06,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274354480] [2022-11-19 08:28:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:06,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:06,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:06,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:06,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:28:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:06,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:28:06,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:28:06,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:28:06,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274354480] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:06,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [825130053] [2022-11-19 08:28:06,883 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:28:06,884 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:06,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:06,885 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:06,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:06,969 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:28:06,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:28:06,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-19 08:28:07,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-11-19 08:28:07,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 127 [2022-11-19 08:28:09,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:09,360 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-19 08:28:09,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 43 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 638 treesize of output 613 [2022-11-19 08:28:11,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:11,114 INFO L321 Elim1Store]: treesize reduction 113, result has 5.8 percent of original size [2022-11-19 08:28:11,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 31 case distinctions, treesize of input 723 treesize of output 656 [2022-11-19 08:28:11,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:11,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:12,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:12,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:12,707 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 15 for LOIs [2022-11-19 08:28:12,710 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:15,828 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1282#(and (not (<= (* 2 |ULTIMATE.start_main_~i~0#1|) 2147483647)) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= |ULTIMATE.start_main_~FIXEDVAL~0#1| 10) (<= 1 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (<= |#NULL.offset| 0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (not (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| |ULTIMATE.start_main_~value~0#1|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= ~MAX~0 100000) (= |#NULL.base| 0))' at error location [2022-11-19 08:28:15,829 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:28:15,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:15,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-19 08:28:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035547680] [2022-11-19 08:28:15,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:28:15,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:28:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:15,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:28:15,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:28:15,835 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-19 08:28:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:16,131 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2022-11-19 08:28:16,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:28:16,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 36 [2022-11-19 08:28:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:16,132 INFO L225 Difference]: With dead ends: 130 [2022-11-19 08:28:16,132 INFO L226 Difference]: Without dead ends: 121 [2022-11-19 08:28:16,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 75 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2022-11-19 08:28:16,134 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 84 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:16,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 113 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:28:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-19 08:28:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2022-11-19 08:28:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 96 states have (on average 1.34375) internal successors, (129), 109 states have internal predecessors, (129), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2022-11-19 08:28:16,154 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 36 [2022-11-19 08:28:16,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:16,155 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2022-11-19 08:28:16,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-19 08:28:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2022-11-19 08:28:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 08:28:16,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:16,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-19 08:28:16,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:16,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:16,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2115077580, now seen corresponding path program 1 times [2022-11-19 08:28:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:16,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222508394] [2022-11-19 08:28:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:28:16,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:16,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222508394] [2022-11-19 08:28:16,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222508394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:16,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875799811] [2022-11-19 08:28:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:16,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:16,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:16,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:28:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:16,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:28:16,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:28:16,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:28:16,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875799811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:16,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1874832144] [2022-11-19 08:28:16,652 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-11-19 08:28:16,653 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:16,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:16,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:16,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:16,724 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:28:16,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:28:16,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-19 08:28:16,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-11-19 08:28:17,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 127 [2022-11-19 08:28:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:18,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:18,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:18,502 INFO L321 Elim1Store]: treesize reduction 102, result has 21.5 percent of original size [2022-11-19 08:28:18,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 22 case distinctions, treesize of input 611 treesize of output 602 [2022-11-19 08:28:20,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:20,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:21,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:21,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:21,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:21,861 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 15 for LOIs [2022-11-19 08:28:21,863 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:25,333 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1805#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= 1 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-19 08:28:25,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:28:25,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:25,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-19 08:28:25,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646226250] [2022-11-19 08:28:25,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:28:25,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:28:25,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:25,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:28:25,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2022-11-19 08:28:25,335 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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) [2022-11-19 08:28:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:25,625 INFO L93 Difference]: Finished difference Result 131 states and 158 transitions. [2022-11-19 08:28:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:28:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 36 [2022-11-19 08:28:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:25,626 INFO L225 Difference]: With dead ends: 131 [2022-11-19 08:28:25,627 INFO L226 Difference]: Without dead ends: 130 [2022-11-19 08:28:25,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 70 SyntacticMatches, 10 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=238, Invalid=1322, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 08:28:25,628 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 166 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:25,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 133 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:28:25,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-19 08:28:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2022-11-19 08:28:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 117 states have internal predecessors, (139), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 153 transitions. [2022-11-19 08:28:25,652 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 153 transitions. Word has length 36 [2022-11-19 08:28:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:25,653 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 153 transitions. [2022-11-19 08:28:25,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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) [2022-11-19 08:28:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 153 transitions. [2022-11-19 08:28:25,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:28:25,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:25,654 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:25,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:25,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 08:28:25,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:25,865 INFO L85 PathProgramCache]: Analyzing trace with hash 139488739, now seen corresponding path program 1 times [2022-11-19 08:28:25,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:25,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563937811] [2022-11-19 08:28:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:25,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:28:25,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:25,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563937811] [2022-11-19 08:28:25,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563937811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:25,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618682242] [2022-11-19 08:28:25,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:25,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:25,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:25,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:25,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:28:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:26,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:28:26,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:28:26,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:28:26,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618682242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:26,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:28:26,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-19 08:28:26,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791582697] [2022-11-19 08:28:26,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:26,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:26,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:26,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:26,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:28:26,086 INFO L87 Difference]: Start difference. First operand 126 states and 153 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-19 08:28:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:26,218 INFO L93 Difference]: Finished difference Result 126 states and 153 transitions. [2022-11-19 08:28:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:28:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 37 [2022-11-19 08:28:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:26,219 INFO L225 Difference]: With dead ends: 126 [2022-11-19 08:28:26,219 INFO L226 Difference]: Without dead ends: 117 [2022-11-19 08:28:26,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:28:26,220 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:26,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 75 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-19 08:28:26,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-11-19 08:28:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 108 states have internal predecessors, (121), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2022-11-19 08:28:26,239 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 37 [2022-11-19 08:28:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:26,239 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2022-11-19 08:28:26,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-19 08:28:26,240 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2022-11-19 08:28:26,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:28:26,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:26,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-11-19 08:28:26,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:26,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:26,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1142895681, now seen corresponding path program 1 times [2022-11-19 08:28:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:26,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870442508] [2022-11-19 08:28:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:26,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:28:26,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:26,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870442508] [2022-11-19 08:28:26,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870442508] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890183290] [2022-11-19 08:28:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:26,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:26,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:26,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:26,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:28:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:26,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:28:26,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:28:26,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:28:26,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890183290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:26,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:28:26,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-19 08:28:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510329299] [2022-11-19 08:28:26,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:26,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:28:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:28:26,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:28:26,749 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-11-19 08:28:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:26,867 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2022-11-19 08:28:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:28:26,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 37 [2022-11-19 08:28:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:26,870 INFO L225 Difference]: With dead ends: 117 [2022-11-19 08:28:26,870 INFO L226 Difference]: Without dead ends: 116 [2022-11-19 08:28:26,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:28:26,873 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:26,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 72 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-19 08:28:26,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-19 08:28:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 104 states have (on average 1.1346153846153846) internal successors, (118), 107 states have internal predecessors, (118), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 132 transitions. [2022-11-19 08:28:26,902 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 132 transitions. Word has length 37 [2022-11-19 08:28:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:26,902 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 132 transitions. [2022-11-19 08:28:26,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-11-19 08:28:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 132 transitions. [2022-11-19 08:28:26,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 08:28:26,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:26,904 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 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] [2022-11-19 08:28:26,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:27,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:27,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1207971995, now seen corresponding path program 2 times [2022-11-19 08:28:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:27,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311056001] [2022-11-19 08:28:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:28:27,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:27,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311056001] [2022-11-19 08:28:27,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311056001] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:27,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888326458] [2022-11-19 08:28:27,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:28:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:27,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:27,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:28:28,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:28:28,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:28:28,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:28:28,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-19 08:28:28,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-19 08:28:28,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888326458] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1529530780] [2022-11-19 08:28:28,206 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-11-19 08:28:28,206 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:28,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:28,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:28,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:28,282 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:28:28,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:28:28,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-19 08:28:28,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-11-19 08:28:28,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 127 [2022-11-19 08:28:29,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:29,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:29,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:29,987 INFO L321 Elim1Store]: treesize reduction 102, result has 21.5 percent of original size [2022-11-19 08:28:29,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 22 case distinctions, treesize of input 611 treesize of output 602 [2022-11-19 08:28:32,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:32,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:32,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:32,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:32,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:33,217 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 15 for LOIs [2022-11-19 08:28:33,219 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:37,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3196#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= 1 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-19 08:28:37,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:28:37,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:37,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 2, 3] total 18 [2022-11-19 08:28:37,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363106918] [2022-11-19 08:28:37,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:28:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:28:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:28:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2022-11-19 08:28:37,476 INFO L87 Difference]: Start difference. First operand 116 states and 132 transitions. Second operand has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 08:28:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:38,057 INFO L93 Difference]: Finished difference Result 131 states and 148 transitions. [2022-11-19 08:28:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:28:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2022-11-19 08:28:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:38,059 INFO L225 Difference]: With dead ends: 131 [2022-11-19 08:28:38,059 INFO L226 Difference]: Without dead ends: 100 [2022-11-19 08:28:38,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 103 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=281, Invalid=2169, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 08:28:38,061 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 214 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:38,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 93 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:28:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-19 08:28:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-19 08:28:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.1123595505617978) internal successors, (99), 91 states have internal predecessors, (99), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2022-11-19 08:28:38,074 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 113 transitions. Word has length 45 [2022-11-19 08:28:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:38,074 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 113 transitions. [2022-11-19 08:28:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 08:28:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 113 transitions. [2022-11-19 08:28:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:28:38,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:38,077 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-19 08:28:38,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:38,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:28:38,282 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:38,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1292078624, now seen corresponding path program 1 times [2022-11-19 08:28:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:38,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275092599] [2022-11-19 08:28:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:38,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-19 08:28:38,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:38,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275092599] [2022-11-19 08:28:38,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275092599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:38,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:38,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:38,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027678023] [2022-11-19 08:28:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:38,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:28:38,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:28:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:28:38,407 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-19 08:28:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:38,472 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2022-11-19 08:28:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:28:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 74 [2022-11-19 08:28:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:38,475 INFO L225 Difference]: With dead ends: 100 [2022-11-19 08:28:38,475 INFO L226 Difference]: Without dead ends: 99 [2022-11-19 08:28:38,475 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 [2022-11-19 08:28:38,476 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:38,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 40 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:28:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-19 08:28:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-19 08:28:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.101123595505618) internal successors, (98), 90 states have internal predecessors, (98), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:28:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2022-11-19 08:28:38,491 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 74 [2022-11-19 08:28:38,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:38,492 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2022-11-19 08:28:38,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-19 08:28:38,493 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2022-11-19 08:28:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 08:28:38,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:38,499 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-19 08:28:38,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:28:38,500 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-19 08:28:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash 209687029, now seen corresponding path program 2 times [2022-11-19 08:28:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:38,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789654092] [2022-11-19 08:28:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-19 08:28:38,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:38,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789654092] [2022-11-19 08:28:38,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789654092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:38,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020328671] [2022-11-19 08:28:38,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:28:38,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:38,944 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:38,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:28:39,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:28:39,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:28:39,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:28:39,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:39,341 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-19 08:28:39,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-19 08:28:39,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020328671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:39,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1863234757] [2022-11-19 08:28:39,510 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:28:39,510 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:39,510 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:39,510 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:39,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:39,577 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-19 08:28:39,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-19 08:28:39,638 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:28:39,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:28:39,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-11-19 08:28:40,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 127 [2022-11-19 08:28:41,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,332 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-19 08:28:41,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 43 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 638 treesize of output 613 [2022-11-19 08:28:42,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,553 INFO L321 Elim1Store]: treesize reduction 113, result has 5.8 percent of original size [2022-11-19 08:28:42,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 31 case distinctions, treesize of input 723 treesize of output 656 [2022-11-19 08:28:42,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:43,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:43,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:28:43,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-19 08:28:43,799 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 15 for LOIs [2022-11-19 08:28:43,801 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:47,716 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4241#(and (not (<= (* 2 |ULTIMATE.start_main_~i~0#1|) 2147483647)) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= |ULTIMATE.start_main_~FIXEDVAL~0#1| 10) (<= 1 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (<= |#NULL.offset| 0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (not (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| |ULTIMATE.start_main_~value~0#1|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= ~MAX~0 100000) (= |#NULL.base| 0))' at error location [2022-11-19 08:28:47,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:28:47,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:47,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 8 [2022-11-19 08:28:47,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049375359] [2022-11-19 08:28:47,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:28:47,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:28:47,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:47,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:28:47,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:28:47,718 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-19 08:28:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:47,919 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2022-11-19 08:28:47,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:28:47,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 84 [2022-11-19 08:28:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:47,921 INFO L225 Difference]: With dead ends: 99 [2022-11-19 08:28:47,921 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:28:47,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 205 SyntacticMatches, 28 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:28:47,922 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:47,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 14 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:28:47,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:28:47,924 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) [2022-11-19 08:28:47,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:28:47,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2022-11-19 08:28:47,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:47,924 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:28:47,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-19 08:28:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:28:47,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:28:47,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-11-19 08:28:47,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-11-19 08:28:47,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-11-19 08:28:47,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-11-19 08:28:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-11-19 08:28:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-11-19 08:28:47,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:28:48,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 08:28:48,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:28:50,291 INFO L902 garLoopResultBuilder]: At program point ReadFromPortENTRY(lines 12 16) the Hoare annotation is: true [2022-11-19 08:28:50,291 INFO L899 garLoopResultBuilder]: For program point ReadFromPortEXIT(lines 12 16) no Hoare annotation was computed. [2022-11-19 08:28:50,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 57) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point L36-4(lines 36 57) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point L36-5(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point L36-6(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L895 garLoopResultBuilder]: At program point L36-7(lines 36 57) the Hoare annotation is: (let ((.cse29 (select |#memory_int| 1)) (.cse30 (select |#memory_int| 2))) (let ((.cse0 (= 7 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|)) (.cse3 (= (select .cse30 3) 50)) (.cse4 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse5 (= 114 (select .cse30 2))) (.cse6 (= (select .cse30 5) 99)) (.cse7 (= ~MAX~0 100000)) (.cse8 (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0)) (.cse9 (<= 2 ~SIZE~0)) (.cse10 (= 2 (select |#length| 1))) (.cse11 (= (select |#valid| 3) 1)) (.cse12 (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|)) (.cse13 (= (select .cse30 4) 46)) (.cse14 (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) (* 4 (mod ~SIZE~0 1073741824)))) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select .cse30 6) 0)) (.cse17 (= 112 (select .cse30 0))) (.cse18 (<= ~SIZE~0 99999)) (.cse19 (= (select |#valid| 0) 0)) (.cse20 (= (select |#valid| 2) 1)) (.cse21 (= |#NULL.offset| 0)) (.cse22 (= (select .cse29 0) 48)) (.cse23 (= 110 (select .cse30 1))) (.cse24 (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1)) (.cse25 (= (select .cse29 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse27 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse16 .cse17 .cse18 .cse19 (= ~SIZE~0 (* 2 (div ~SIZE~0 2))) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~i~0#1| 1) .cse11 .cse12 .cse13 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| (ite (= (let ((.cse28 (mod ~SIZE~0 2))) (ite (and (< ~SIZE~0 0) (not (= .cse28 0))) (+ (- 2) .cse28) .cse28)) 0) 1 0)) .cse26 .cse27)))) [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point L36-8(lines 36 57) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,294 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,294 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,294 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,294 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse29 (select |#memory_int| 1)) (.cse30 (select |#memory_int| 2))) (let ((.cse0 (= 7 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|)) (.cse3 (= (select .cse30 3) 50)) (.cse4 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse5 (= 114 (select .cse30 2))) (.cse6 (= (select .cse30 5) 99)) (.cse7 (= ~MAX~0 100000)) (.cse8 (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0)) (.cse9 (<= 2 ~SIZE~0)) (.cse10 (= 2 (select |#length| 1))) (.cse11 (= (select |#valid| 3) 1)) (.cse12 (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|)) (.cse13 (= (select .cse30 4) 46)) (.cse14 (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) (* 4 (mod ~SIZE~0 1073741824)))) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select .cse30 6) 0)) (.cse17 (= 112 (select .cse30 0))) (.cse18 (<= ~SIZE~0 99999)) (.cse19 (= (select |#valid| 0) 0)) (.cse20 (= (select |#valid| 2) 1)) (.cse21 (= |#NULL.offset| 0)) (.cse22 (= (select .cse29 0) 48)) (.cse23 (= 110 (select .cse30 1))) (.cse24 (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1)) (.cse25 (= (select .cse29 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse27 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse16 .cse17 .cse18 .cse19 (= ~SIZE~0 (* 2 (div ~SIZE~0 2))) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 (<= |ULTIMATE.start_main_~i~0#1| 49999) .cse26 .cse27) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~i~0#1| 1) .cse11 .cse12 .cse13 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| (ite (= (let ((.cse28 (mod ~SIZE~0 2))) (ite (and (< ~SIZE~0 0) (not (= .cse28 0))) (+ (- 2) .cse28) .cse28)) 0) 1 0)) .cse26 .cse27)))) [2022-11-19 08:28:50,294 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-19 08:28:50,294 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 46) no Hoare annotation was computed. [2022-11-19 08:28:50,295 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 39 46) the Hoare annotation is: (let ((.cse29 (select |#memory_int| 1)) (.cse30 (select |#memory_int| 2))) (let ((.cse0 (= 7 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|)) (.cse3 (= (select .cse30 3) 50)) (.cse4 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse5 (= 114 (select .cse30 2))) (.cse6 (= (select .cse30 5) 99)) (.cse7 (= ~MAX~0 100000)) (.cse8 (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0)) (.cse9 (<= 2 ~SIZE~0)) (.cse10 (= 2 (select |#length| 1))) (.cse11 (= (select |#valid| 3) 1)) (.cse12 (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|)) (.cse13 (= (select .cse30 4) 46)) (.cse14 (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) (* 4 (mod ~SIZE~0 1073741824)))) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select .cse30 6) 0)) (.cse17 (= 112 (select .cse30 0))) (.cse18 (<= ~SIZE~0 99999)) (.cse19 (= (select |#valid| 0) 0)) (.cse20 (= (select |#valid| 2) 1)) (.cse21 (= |#NULL.offset| 0)) (.cse22 (= (select .cse29 0) 48)) (.cse23 (= 110 (select .cse30 1))) (.cse24 (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1)) (.cse25 (= (select .cse29 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse27 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse16 .cse17 .cse18 .cse19 (= ~SIZE~0 (* 2 (div ~SIZE~0 2))) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 (<= |ULTIMATE.start_main_~i~0#1| 49999) .cse26 .cse27) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~i~0#1| 1) .cse11 .cse12 .cse13 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| (ite (= (let ((.cse28 (mod ~SIZE~0 2))) (ite (and (< ~SIZE~0 0) (not (= .cse28 0))) (+ (- 2) .cse28) .cse28)) 0) 1 0)) .cse26 .cse27)))) [2022-11-19 08:28:50,295 INFO L895 garLoopResultBuilder]: At program point L64(lines 22 65) the Hoare annotation is: (or (not (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (<= ~MAX~0 100000)) [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:28:50,296 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 56) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-19 08:28:50,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 63) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point L25-1(lines 25 63) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 08:28:50,298 INFO L899 garLoopResultBuilder]: For program point L59-3(line 59) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point L59-4(line 59) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L895 garLoopResultBuilder]: At program point L59-5(lines 59 62) the Hoare annotation is: (let ((.cse29 (select |#memory_int| 1)) (.cse30 (select |#memory_int| 2))) (let ((.cse0 (= 7 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|)) (.cse3 (= (select .cse30 3) 50)) (.cse4 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse5 (= 114 (select .cse30 2))) (.cse6 (= (select .cse30 5) 99)) (.cse7 (= ~MAX~0 100000)) (.cse8 (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0)) (.cse9 (<= 2 ~SIZE~0)) (.cse10 (= 2 (select |#length| 1))) (.cse11 (= (select |#valid| 3) 1)) (.cse12 (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|)) (.cse13 (= (select .cse30 4) 46)) (.cse14 (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) (* 4 (mod ~SIZE~0 1073741824)))) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select .cse30 6) 0)) (.cse17 (= 112 (select .cse30 0))) (.cse18 (<= ~SIZE~0 99999)) (.cse19 (= (select |#valid| 0) 0)) (.cse20 (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (.cse21 (= (select |#valid| 2) 1)) (.cse22 (= |#NULL.offset| 0)) (.cse23 (= (select .cse29 0) 48)) (.cse24 (= 110 (select .cse30 1))) (.cse25 (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1)) (.cse26 (= (select .cse29 1) 0)) (.cse27 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~0#1| 0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28)))) [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point L51-2(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-11-19 08:28:50,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-19 08:28:50,302 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:50,305 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:28:50,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:28:50 BoogieIcfgContainer [2022-11-19 08:28:50,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:28:50,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:28:50,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:28:50,332 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:28:50,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:02" (3/4) ... [2022-11-19 08:28:50,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:28:50,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ReadFromPort [2022-11-19 08:28:50,346 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-19 08:28:50,346 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 08:28:50,347 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 08:28:50,347 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:28:50,347 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:28:50,372 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && 2 <= i) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && SIZE == 2 * (SIZE / 2)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && i == 1) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && \old(cond) == cond) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && !(cond == 0)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \old(cond) == (if (if SIZE < 0 && !(SIZE % 2 == 0) then -2 + SIZE % 2 else SIZE % 2) == 0 then 1 else 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-19 08:28:50,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:28:50,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:28:50,389 INFO L158 Benchmark]: Toolchain (without parser) took 48949.36ms. Allocated memory was 115.3MB in the beginning and 511.7MB in the end (delta: 396.4MB). Free memory was 79.5MB in the beginning and 284.3MB in the end (delta: -204.8MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,389 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:28:50,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.93ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 90.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.18ms. Allocated memory is still 115.3MB. Free memory was 90.3MB in the beginning and 88.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:28:50,390 INFO L158 Benchmark]: Boogie Preprocessor took 52.06ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,391 INFO L158 Benchmark]: RCFGBuilder took 475.01ms. Allocated memory is still 115.3MB. Free memory was 87.2MB in the beginning and 70.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,391 INFO L158 Benchmark]: TraceAbstraction took 47985.43ms. Allocated memory was 115.3MB in the beginning and 511.7MB in the end (delta: 396.4MB). Free memory was 69.8MB in the beginning and 287.4MB in the end (delta: -217.6MB). Peak memory consumption was 290.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,391 INFO L158 Benchmark]: Witness Printer took 57.47ms. Allocated memory is still 511.7MB. Free memory was 287.4MB in the beginning and 284.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:50,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.93ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 90.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.18ms. Allocated memory is still 115.3MB. Free memory was 90.3MB in the beginning and 88.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.06ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 475.01ms. Allocated memory is still 115.3MB. Free memory was 87.2MB in the beginning and 70.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47985.43ms. Allocated memory was 115.3MB in the beginning and 511.7MB in the end (delta: 396.4MB). Free memory was 69.8MB in the beginning and 287.4MB in the end (delta: -217.6MB). Peak memory consumption was 290.1MB. Max. memory is 16.1GB. * Witness Printer took 57.47ms. Allocated memory is still 511.7MB. Free memory was 287.4MB in the beginning and 284.3MB 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 47.9s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1013 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 999 mSDsluCounter, 911 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 552 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1464 IncrementalHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 359 mSDtfsCounter, 1464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 798 GetRequests, 551 SyntacticMatches, 61 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2680 ImplicationChecksByTransitivity, 16.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=7, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 12 PreInvPairs, 31 NumberOfFragments, 1325 HoareAnnotationTreeSize, 12 FomulaSimplifications, 349 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 2225 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 699 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 888 ConstructedInterpolants, 0 QuantifiedInterpolants, 3269 SizeOfPredicates, 13 NumberOfNonLiveVariables, 876 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 549/662 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: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 6, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 13, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 84, DAG_COMPRESSION_RETAINED_NODES: 27, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: !(SIZE == 2 * (SIZE / 2)) || MAX <= 100000 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && i == 0) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && SIZE == 2 * (SIZE / 2)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && 114 == unknown-#memory_int-unknown[2][2]) && 1 <= i) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && SIZE == 2 * (SIZE / 2)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && 2 <= i) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && SIZE == 2 * (SIZE / 2)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][3] == 50) && a == 0) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && MAX == 100000) && DEFAULTVAL == 0) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && i == 1) && \valid[3] == 1) && 10 == FIXEDVAL) && unknown-#memory_int-unknown[2][4] == 46) && \old(cond) == cond) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 112 == unknown-#memory_int-unknown[2][0]) && SIZE <= 99999) && \valid[0] == 0) && !(cond == 0)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \old(cond) == (if (if SIZE < 0 && !(SIZE % 2 == 0) then -2 + SIZE % 2 else SIZE % 2) == 0 then 1 else 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:28:50,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefe548e-016f-4e88-a314-fa29bbc6e8fd/bin/utaipan-I9t0OCRTmS/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