./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops-crafted-1/vnew1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/vnew1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92c9725cc4c9709a9ab81826fb3481ef81541ab6f68244b6727f50e97bc0f0c0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:30:06,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:30:06,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:30:06,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:30:06,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:30:06,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:30:06,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:30:06,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:30:06,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:30:06,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:30:06,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:30:06,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:30:06,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:30:06,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:30:06,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:30:06,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:30:06,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:30:06,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:30:06,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:30:06,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:30:06,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:30:06,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:30:06,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:30:06,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:30:06,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:30:06,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:30:06,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:30:06,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:30:06,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:30:06,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:30:06,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:30:06,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:30:06,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:30:06,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:30:06,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:30:06,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:30:06,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:30:06,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:30:06,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:30:06,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:30:06,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:30:06,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:30:06,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:30:06,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:30:06,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:30:06,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:30:06,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:30:06,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:30:06,169 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:30:06,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:30:06,169 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:30:06,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:30:06,170 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:30:06,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:30:06,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:30:06,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:30:06,171 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:30:06,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:30:06,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:30:06,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:30:06,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:30:06,173 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:30:06,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:30:06,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:30:06,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:30:06,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:30:06,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:30:06,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:30:06,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:30:06,175 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:30:06,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:30:06,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:30:06,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:30:06,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:30:06,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:30:06,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:30:06,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:06,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:30:06,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:30:06,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:30:06,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:30:06,178 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:30:06,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:30:06,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:30:06,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:30:06,179 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_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92c9725cc4c9709a9ab81826fb3481ef81541ab6f68244b6727f50e97bc0f0c0 [2022-11-22 02:30:06,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:30:06,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:30:06,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:30:06,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:30:06,571 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:30:06,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loops-crafted-1/vnew1.c [2022-11-22 02:30:09,539 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:30:09,756 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:30:09,759 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/sv-benchmarks/c/loops-crafted-1/vnew1.c [2022-11-22 02:30:09,766 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/data/e7e29bdc7/093fe612ca134af18faba400afb065f2/FLAG88a94e11c [2022-11-22 02:30:09,788 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/data/e7e29bdc7/093fe612ca134af18faba400afb065f2 [2022-11-22 02:30:09,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:30:09,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:30:09,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:09,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:30:09,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:30:09,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:09" (1/1) ... [2022-11-22 02:30:09,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e5a2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:09, skipping insertion in model container [2022-11-22 02:30:09,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:09" (1/1) ... [2022-11-22 02:30:09,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:30:09,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:30:09,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/sv-benchmarks/c/loops-crafted-1/vnew1.c[403,416] [2022-11-22 02:30:10,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:10,020 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:30:10,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/sv-benchmarks/c/loops-crafted-1/vnew1.c[403,416] [2022-11-22 02:30:10,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:10,046 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:30:10,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10 WrapperNode [2022-11-22 02:30:10,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:10,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:10,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:30:10,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:30:10,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,079 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-22 02:30:10,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:10,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:30:10,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:30:10,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:30:10,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:30:10,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:30:10,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:30:10,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:30:10,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:10,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:30:10,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:30:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:30:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:30:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:30:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:30:10,293 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:30:10,295 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:30:10,410 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:30:10,453 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:30:10,453 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:30:10,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:10 BoogieIcfgContainer [2022-11-22 02:30:10,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:30:10,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:30:10,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:30:10,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:30:10,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:09" (1/3) ... [2022-11-22 02:30:10,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32212c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:10, skipping insertion in model container [2022-11-22 02:30:10,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (2/3) ... [2022-11-22 02:30:10,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32212c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:10, skipping insertion in model container [2022-11-22 02:30:10,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:10" (3/3) ... [2022-11-22 02:30:10,464 INFO L112 eAbstractionObserver]: Analyzing ICFG vnew1.c [2022-11-22 02:30:10,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:30:10,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:30:10,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:30:10,537 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;@763f4e63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:30:10,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 02:30:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:30:10,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:10,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:30:10,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 02:30:10,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:10,554 INFO L85 PathProgramCache]: Analyzing trace with hash 76918294, now seen corresponding path program 1 times [2022-11-22 02:30:10,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:10,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274952485] [2022-11-22 02:30:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:10,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:10,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:10,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274952485] [2022-11-22 02:30:10,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274952485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:10,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:10,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:30:10,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520291869] [2022-11-22 02:30:10,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:10,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:30:10,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:10,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:30:10,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:30:10,914 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:11,036 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-22 02:30:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:30:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-22 02:30:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:11,047 INFO L225 Difference]: With dead ends: 17 [2022-11-22 02:30:11,047 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:30:11,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:30:11,062 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:11,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:30:11,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:30:11,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-22 02:30:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-22 02:30:11,094 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2022-11-22 02:30:11,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:11,094 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-22 02:30:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-22 02:30:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:30:11,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:11,096 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:11,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:30:11,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 02:30:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2039566620, now seen corresponding path program 1 times [2022-11-22 02:30:11,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:11,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258665985] [2022-11-22 02:30:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:11,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:11,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:11,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258665985] [2022-11-22 02:30:11,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258665985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:30:11,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283131161] [2022-11-22 02:30:11,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:11,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:11,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:11,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:30:11,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:30:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:11,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:30:11,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:30:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:11,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:30:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:11,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283131161] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:30:11,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1335513593] [2022-11-22 02:30:11,602 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:30:11,603 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:30:11,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:30:11,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:30:11,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:30:11,841 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:30:12,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1335513593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:12,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:30:12,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 15 [2022-11-22 02:30:12,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853026685] [2022-11-22 02:30:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:12,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:30:12,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:12,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:30:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:30:12,238 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:12,293 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-22 02:30:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:30:12,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 8 [2022-11-22 02:30:12,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:12,295 INFO L225 Difference]: With dead ends: 20 [2022-11-22 02:30:12,295 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 02:30:12,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:30:12,299 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:12,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:12,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 02:30:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-22 02:30:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-22 02:30:12,311 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2022-11-22 02:30:12,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:12,311 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-22 02:30:12,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:12,311 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-22 02:30:12,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:30:12,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:12,312 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:12,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:30:12,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:12,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 02:30:12,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1646432436, now seen corresponding path program 1 times [2022-11-22 02:30:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:12,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491252158] [2022-11-22 02:30:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:30:12,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:12,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491252158] [2022-11-22 02:30:12,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491252158] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:30:12,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359704465] [2022-11-22 02:30:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:12,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:12,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:12,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:30:12,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:30:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:12,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:30:12,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:30:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:30:12,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:30:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:30:12,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359704465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:30:12,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [500156616] [2022-11-22 02:30:12,871 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:30:12,871 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:30:12,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:30:12,871 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:30:12,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:30:13,151 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:30:13,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '214#(and (= |ULTIMATE.start_main_#t~post7#1| |ULTIMATE.start_main_~j~0#1|) (< (mod |ULTIMATE.start_main_~j~0#1| 4294967296) (mod (div (mod |ULTIMATE.start_main_~n~0#1| 4294967296) 3) 4294967296)) (not (<= |ULTIMATE.start_main_#t~post7#1| 2147483646)) (= (ite (< 0 (mod (+ |ULTIMATE.start_main_~k~0#1| 1) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= ~SIZE~0 20000001) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:30:13,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:30:13,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:30:13,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-22 02:30:13,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161102939] [2022-11-22 02:30:13,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:30:13,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:30:13,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:30:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:30:13,502 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:13,634 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-22 02:30:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:30:13,634 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:30:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:13,635 INFO L225 Difference]: With dead ends: 17 [2022-11-22 02:30:13,635 INFO L226 Difference]: Without dead ends: 16 [2022-11-22 02:30:13,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:30:13,636 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:13,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 10 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:13,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-22 02:30:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-22 02:30:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-22 02:30:13,649 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2022-11-22 02:30:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:13,649 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-22 02:30:13,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-22 02:30:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:30:13,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:13,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:13,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:30:13,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-22 02:30:13,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 02:30:13,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:13,860 INFO L85 PathProgramCache]: Analyzing trace with hash 500202109, now seen corresponding path program 1 times [2022-11-22 02:30:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:13,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067683878] [2022-11-22 02:30:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:30:14,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:14,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067683878] [2022-11-22 02:30:14,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067683878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:30:14,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429027184] [2022-11-22 02:30:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:14,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:14,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:14,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:30:14,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:30:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:14,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:30:14,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:30:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:30:14,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:30:14,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429027184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:14,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:30:14,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 02:30:14,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409504990] [2022-11-22 02:30:14,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:14,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:30:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:30:14,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:30:14,143 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:14,189 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-11-22 02:30:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:30:14,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-22 02:30:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:14,193 INFO L225 Difference]: With dead ends: 11 [2022-11-22 02:30:14,193 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:30:14,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:30:14,198 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:14,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:30:14,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:30:14,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:30:14,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-22 02:30:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:14,204 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:30:14,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:30:14,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:30:14,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 02:30:14,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 02:30:14,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 02:30:14,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:14,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:30:14,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-22 02:30:14,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:30:14,923 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 31) the Hoare annotation is: (let ((.cse22 (select |#memory_int| 1)) (.cse21 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse21 4) 49)) (.cse1 (= 119 (select .cse21 3))) (.cse2 (= (select .cse21 7) 0)) (.cse3 (= (select |#length| 3) 12)) (.cse4 (= (select .cse21 6) 99)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= ~SIZE~0 20000001)) (.cse9 (= 101 (select .cse21 2))) (.cse10 (= (select |#valid| 0) 0)) (.cse11 (= (select .cse21 5) 46)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (= 8 (select |#length| 2))) (.cse15 (= (select .cse22 0) 48)) (.cse16 (= 110 (select .cse21 1))) (.cse17 (= (select .cse22 1) 0)) (.cse18 (= (select .cse21 0) 118)) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~j~0#1| 2147483647) .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~j~0#1| 0) .cse16 .cse17 .cse18 .cse19 .cse20)))) [2022-11-22 02:30:14,923 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-22 02:30:14,923 INFO L902 garLoopResultBuilder]: At program point L32(lines 16 33) the Hoare annotation is: true [2022-11-22 02:30:14,923 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-22 02:30:14,924 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-22 02:30:14,924 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:30:14,924 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-22 02:30:14,924 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 4) 49) (= 119 (select .cse0 3)) (= (select .cse0 7) 0) (= (select |#length| 3) 12) (= (select .cse0 6) 99) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= ~SIZE~0 20000001) (= 101 (select .cse0 2)) (= (select |#valid| 0) 0) (= (select .cse0 5) 46) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 2)) (= (select .cse1 0) 48) (= 110 (select .cse0 1)) (= (select .cse1 1) 0) (= (select .cse0 0) 118) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 02:30:14,927 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 02:30:14,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:30:14,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:30:14 BoogieIcfgContainer [2022-11-22 02:30:14,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:30:14,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:30:14,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:30:14,948 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:30:14,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:10" (3/4) ... [2022-11-22 02:30:14,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:30:14,960 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-22 02:30:14,960 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-22 02:30:14,960 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:30:14,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:30:14,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:30:14,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:30:14,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:30:14,991 INFO L158 Benchmark]: Toolchain (without parser) took 5196.00ms. Allocated memory is still 182.5MB. Free memory was 146.5MB in the beginning and 87.3MB in the end (delta: 59.2MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,991 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:14,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.54ms. Allocated memory is still 182.5MB. Free memory was 145.9MB in the beginning and 136.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.12ms. Allocated memory is still 182.5MB. Free memory was 136.0MB in the beginning and 134.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,992 INFO L158 Benchmark]: Boogie Preprocessor took 83.03ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 154.6MB in the end (delta: -20.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,993 INFO L158 Benchmark]: RCFGBuilder took 291.95ms. Allocated memory is still 182.5MB. Free memory was 154.6MB in the beginning and 141.8MB in the end (delta: 12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,993 INFO L158 Benchmark]: TraceAbstraction took 4490.15ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 89.5MB in the end (delta: 51.3MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,993 INFO L158 Benchmark]: Witness Printer took 42.72ms. Allocated memory is still 182.5MB. Free memory was 89.5MB in the beginning and 87.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:14,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.54ms. Allocated memory is still 182.5MB. Free memory was 145.9MB in the beginning and 136.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.12ms. Allocated memory is still 182.5MB. Free memory was 136.0MB in the beginning and 134.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.03ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 154.6MB in the end (delta: -20.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.95ms. Allocated memory is still 182.5MB. Free memory was 154.6MB in the beginning and 141.8MB in the end (delta: 12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4490.15ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 89.5MB in the end (delta: 51.3MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * Witness Printer took 42.72ms. Allocated memory is still 182.5MB. Free memory was 89.5MB in the beginning and 87.3MB in the end (delta: 2.2MB). 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 13 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 365 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 511 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 6 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 8/23 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: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 7, TOOLS_POST_TIME: 0.2s, 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: 7, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 15, 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: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, 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: 41, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((((((((((((((unknown-#memory_int-unknown[2][4] == 49 && 119 == unknown-#memory_int-unknown[2][3]) && unknown-#memory_int-unknown[2][7] == 0) && unknown-#length-unknown[3] == 12) && unknown-#memory_int-unknown[2][6] == 99) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[1] == 1) && SIZE == 20000001) && 101 == unknown-#memory_int-unknown[2][2]) && \valid[0] == 0) && unknown-#memory_int-unknown[2][5] == 46) && \valid[2] == 1) && #NULL == 0) && 8 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#memory_int-unknown[2][0] == 118) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((unknown-#memory_int-unknown[2][4] == 49 && 119 == unknown-#memory_int-unknown[2][3]) && unknown-#memory_int-unknown[2][7] == 0) && unknown-#length-unknown[3] == 12) && j < 2147483647) && unknown-#memory_int-unknown[2][6] == 99) && 2 == unknown-#length-unknown[1]) && 1 <= j) && \valid[3] == 1) && \valid[1] == 1) && SIZE == 20000001) && 101 == unknown-#memory_int-unknown[2][2]) && \valid[0] == 0) && unknown-#memory_int-unknown[2][5] == 46) && \valid[2] == 1) && #NULL == 0) && 8 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][0] == 48) && 110 == unknown-#memory_int-unknown[2][1]) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#memory_int-unknown[2][0] == 118) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((unknown-#memory_int-unknown[2][4] == 49 && 119 == unknown-#memory_int-unknown[2][3]) && unknown-#memory_int-unknown[2][7] == 0) && unknown-#length-unknown[3] == 12) && unknown-#memory_int-unknown[2][6] == 99) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[1] == 1) && SIZE == 20000001) && 101 == unknown-#memory_int-unknown[2][2]) && \valid[0] == 0) && unknown-#memory_int-unknown[2][5] == 46) && \valid[2] == 1) && #NULL == 0) && 8 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][0] == 48) && j == 0) && 110 == unknown-#memory_int-unknown[2][1]) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#memory_int-unknown[2][0] == 118) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 02:30:15,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d5fb4e-4532-4151-a5d9-521e2ded2c85/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE