./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_init6_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/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_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_init6_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/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_0f495c2e-56d5-4e87-9666-8aa7f0a63776/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 ff138f81519ab5ff475befdf624922816837c8f1983c223aa78c0525de509876 --- 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 01:49:58,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:49:58,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:49:58,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:49:58,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:49:58,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:49:58,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:49:58,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:49:58,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:49:58,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:49:58,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:49:58,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:49:58,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:49:58,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:49:58,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:49:58,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:49:58,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:49:58,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:49:58,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:49:58,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:49:58,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:49:58,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:49:58,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:49:58,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:49:58,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:49:58,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:49:58,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:49:58,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:49:58,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:49:58,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:49:58,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:49:58,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:49:58,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:49:58,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:49:58,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:49:58,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:49:58,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:49:58,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:49:58,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:49:58,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:49:58,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:49:58,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:49:58,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:49:58,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:49:58,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:49:58,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:49:58,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:49:58,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:49:58,180 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:49:58,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:49:58,181 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:49:58,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:49:58,181 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:49:58,182 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:49:58,182 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:49:58,182 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:49:58,182 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:49:58,183 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:49:58,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:49:58,183 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:49:58,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:49:58,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:49:58,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:49:58,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:49:58,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:49:58,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:49:58,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:49:58,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:49:58,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:49:58,187 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:49:58,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:49:58,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:49:58,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:49:58,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:49:58,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:49:58,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:49:58,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:58,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:49:58,189 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:49:58,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:49:58,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:49:58,190 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:49:58,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:49:58,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:49:58,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:49:58,191 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_0f495c2e-56d5-4e87-9666-8aa7f0a63776/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff138f81519ab5ff475befdf624922816837c8f1983c223aa78c0525de509876 [2022-11-22 01:49:58,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:49:58,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:49:58,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:49:58,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:49:58,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:49:58,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-examples/standard_init6_ground-1.i [2022-11-22 01:50:01,638 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:50:01,820 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:50:01,821 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/sv-benchmarks/c/array-examples/standard_init6_ground-1.i [2022-11-22 01:50:01,828 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/data/4a3f9a79b/b4b147e7f80b448b9979eab76ff70d9b/FLAGf844193e7 [2022-11-22 01:50:01,846 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/data/4a3f9a79b/b4b147e7f80b448b9979eab76ff70d9b [2022-11-22 01:50:01,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:50:01,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:50:01,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:01,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:50:01,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:50:01,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:01" (1/1) ... [2022-11-22 01:50:01,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1e051e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:01, skipping insertion in model container [2022-11-22 01:50:01,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:01" (1/1) ... [2022-11-22 01:50:01,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:50:01,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:50:02,038 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_0f495c2e-56d5-4e87-9666-8aa7f0a63776/sv-benchmarks/c/array-examples/standard_init6_ground-1.i[816,829] [2022-11-22 01:50:02,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:02,062 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:50:02,074 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_0f495c2e-56d5-4e87-9666-8aa7f0a63776/sv-benchmarks/c/array-examples/standard_init6_ground-1.i[816,829] [2022-11-22 01:50:02,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:02,097 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:50:02,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02 WrapperNode [2022-11-22 01:50:02,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:02,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:02,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:50:02,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:50:02,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,134 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-11-22 01:50:02,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:02,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:50:02,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:50:02,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:50:02,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:50:02,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:50:02,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:50:02,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:50:02,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (1/1) ... [2022-11-22 01:50:02,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:02,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:50:02,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:50:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:50:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:50:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:50:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:50:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:50:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:50:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:50:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:50:02,331 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:50:02,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:50:02,584 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:50:02,698 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:50:02,699 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-22 01:50:02,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:02 BoogieIcfgContainer [2022-11-22 01:50:02,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:50:02,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:50:02,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:50:02,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:50:02,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:50:01" (1/3) ... [2022-11-22 01:50:02,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d663a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:02, skipping insertion in model container [2022-11-22 01:50:02,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:02" (2/3) ... [2022-11-22 01:50:02,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d663a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:02, skipping insertion in model container [2022-11-22 01:50:02,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:02" (3/3) ... [2022-11-22 01:50:02,727 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_init6_ground-1.i [2022-11-22 01:50:02,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:50:02,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-22 01:50:02,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:50:02,906 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;@5dc45abb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:50:02,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-22 01:50:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 36 states have internal predecessors, (43), 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 01:50:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:50:02,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:02,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:50:02,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 161801, now seen corresponding path program 1 times [2022-11-22 01:50:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:02,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828709743] [2022-11-22 01:50:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:03,206 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 01:50:03,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:03,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828709743] [2022-11-22 01:50:03,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828709743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:03,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:03,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:50:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054217378] [2022-11-22 01:50:03,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:03,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:50:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:50:03,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:03,271 INFO L87 Difference]: Start difference. First operand has 37 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:03,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:03,491 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2022-11-22 01:50:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:50:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 01:50:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:03,502 INFO L225 Difference]: With dead ends: 88 [2022-11-22 01:50:03,518 INFO L226 Difference]: Without dead ends: 54 [2022-11-22 01:50:03,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:03,524 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:03,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 20 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:50:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-22 01:50:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-22 01:50:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.5) internal successors, (60), 53 states have internal predecessors, (60), 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 01:50:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-11-22 01:50:03,564 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 3 [2022-11-22 01:50:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:03,565 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-11-22 01:50:03,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-11-22 01:50:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:50:03,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:03,566 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 01:50:03,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:50:03,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:03,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash 525290854, now seen corresponding path program 1 times [2022-11-22 01:50:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:03,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724735230] [2022-11-22 01:50:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:50:03,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:03,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724735230] [2022-11-22 01:50:03,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724735230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:03,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:03,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:50:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734568770] [2022-11-22 01:50:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:03,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:50:03,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:03,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:50:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:03,623 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:50:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:03,700 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-11-22 01:50:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:50:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-22 01:50:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:03,702 INFO L225 Difference]: With dead ends: 54 [2022-11-22 01:50:03,702 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:50:03,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:03,704 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:03,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 8 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:50:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:50:03,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 01:50:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.35) internal successors, (54), 47 states have internal predecessors, (54), 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 01:50:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-22 01:50:03,714 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 6 [2022-11-22 01:50:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:03,714 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-22 01:50:03,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:50:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-22 01:50:03,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:50:03,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:03,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-22 01:50:03,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:50:03,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:03,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash -895852665, now seen corresponding path program 1 times [2022-11-22 01:50:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:03,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153321142] [2022-11-22 01:50:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:03,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:03,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153321142] [2022-11-22 01:50:03,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153321142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:03,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94630461] [2022-11-22 01:50:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:03,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:03,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:03,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:03,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:50:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:03,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:50:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:03,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:50:03,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94630461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:03,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:50:03,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-22 01:50:03,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955585298] [2022-11-22 01:50:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:03,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:03,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:50:03,971 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 01:50:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:04,080 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-22 01:50:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:04,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 7 [2022-11-22 01:50:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:04,082 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:50:04,082 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 01:50:04,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:50:04,084 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:04,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:50:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 01:50:04,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2022-11-22 01:50:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 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 01:50:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-11-22 01:50:04,091 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 7 [2022-11-22 01:50:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:04,091 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-22 01:50:04,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 01:50:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-22 01:50:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:50:04,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:04,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:04,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:04,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:04,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash 91254082, now seen corresponding path program 1 times [2022-11-22 01:50:04,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:04,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904928458] [2022-11-22 01:50:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:50:04,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:04,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904928458] [2022-11-22 01:50:04,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904928458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:04,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23340180] [2022-11-22 01:50:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:04,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:04,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:04,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:50:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:04,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:50:04,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:50:04,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:50:04,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23340180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465985874] [2022-11-22 01:50:04,692 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-22 01:50:04,692 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:50:04,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:50:04,702 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:50:04,703 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:50:04,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:04,852 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:50:04,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 01:50:04,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:04,885 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:50:04,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 01:50:04,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:04,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:50:04,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:04,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:04,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:50:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:50:05,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,148 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-22 01:50:05,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 200 treesize of output 191 [2022-11-22 01:50:05,254 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 15 treesize of output 11 [2022-11-22 01:50:05,331 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 15 treesize of output 11 [2022-11-22 01:50:05,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,350 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 23 treesize of output 22 [2022-11-22 01:50:05,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,413 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:05,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:05,458 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 15 treesize of output 11 [2022-11-22 01:50:05,507 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 15 treesize of output 11 [2022-11-22 01:50:05,535 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 55 treesize of output 54 [2022-11-22 01:50:05,585 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 15 treesize of output 11 [2022-11-22 01:50:05,606 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 15 treesize of output 11 [2022-11-22 01:50:05,621 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 15 treesize of output 11 [2022-11-22 01:50:05,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,643 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 23 treesize of output 22 [2022-11-22 01:50:05,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,702 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:05,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:05,738 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 15 treesize of output 11 [2022-11-22 01:50:05,762 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 15 treesize of output 11 [2022-11-22 01:50:05,790 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 15 treesize of output 11 [2022-11-22 01:50:05,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,805 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 23 treesize of output 22 [2022-11-22 01:50:05,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:05,844 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:05,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:05,877 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 15 treesize of output 11 [2022-11-22 01:50:05,910 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 15 treesize of output 11 [2022-11-22 01:50:05,947 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 01:50:05,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 55 [2022-11-22 01:50:06,009 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 15 treesize of output 11 [2022-11-22 01:50:06,021 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 15 treesize of output 11 [2022-11-22 01:50:06,032 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:50:06,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [465985874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:06,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:50:06,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [3, 3, 3] total 14 [2022-11-22 01:50:06,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788486753] [2022-11-22 01:50:06,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:06,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:50:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:06,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:50:06,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:50:06,606 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 01:50:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:06,894 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-22 01:50:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:50:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 27 [2022-11-22 01:50:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:06,896 INFO L225 Difference]: With dead ends: 35 [2022-11-22 01:50:06,896 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 01:50:06,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 16 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:50:06,897 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 45 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:06,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 11 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:50:06,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 01:50:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-22 01:50:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 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 01:50:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-11-22 01:50:06,905 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 27 [2022-11-22 01:50:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:06,905 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-22 01:50:06,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 01:50:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-11-22 01:50:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 01:50:06,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:06,907 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:06,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:07,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:07,115 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:07,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash -163784894, now seen corresponding path program 1 times [2022-11-22 01:50:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:07,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428521843] [2022-11-22 01:50:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:50:07,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:07,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428521843] [2022-11-22 01:50:07,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428521843] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:07,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307698223] [2022-11-22 01:50:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:07,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:07,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:07,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:50:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:07,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:50:07,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:50:07,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:50:07,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307698223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:07,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1540882031] [2022-11-22 01:50:07,404 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:50:07,404 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:50:07,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:50:07,405 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:50:07,405 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:50:07,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,448 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:50:07,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 01:50:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,476 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:50:07,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 01:50:07,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:50:07,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:50:07,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:50:07,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,612 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-22 01:50:07,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 200 treesize of output 191 [2022-11-22 01:50:07,669 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 15 treesize of output 11 [2022-11-22 01:50:07,712 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 15 treesize of output 11 [2022-11-22 01:50:07,724 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 28 treesize of output 27 [2022-11-22 01:50:07,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2022-11-22 01:50:07,775 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 15 treesize of output 11 [2022-11-22 01:50:07,806 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 15 treesize of output 11 [2022-11-22 01:50:07,827 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 55 treesize of output 54 [2022-11-22 01:50:07,854 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 15 treesize of output 11 [2022-11-22 01:50:07,866 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 15 treesize of output 11 [2022-11-22 01:50:07,878 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 15 treesize of output 11 [2022-11-22 01:50:07,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,890 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 23 treesize of output 22 [2022-11-22 01:50:07,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:07,919 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:07,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:07,944 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 15 treesize of output 11 [2022-11-22 01:50:07,963 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 15 treesize of output 11 [2022-11-22 01:50:07,985 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 15 treesize of output 11 [2022-11-22 01:50:08,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:08,003 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 23 treesize of output 22 [2022-11-22 01:50:08,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:08,031 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:08,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:08,055 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 15 treesize of output 11 [2022-11-22 01:50:08,084 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 15 treesize of output 11 [2022-11-22 01:50:08,114 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 01:50:08,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 55 [2022-11-22 01:50:08,158 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 15 treesize of output 11 [2022-11-22 01:50:08,178 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 15 treesize of output 11 [2022-11-22 01:50:08,370 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:50:09,233 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '927#(and (<= 100000 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (< 2147483646 |ULTIMATE.start_main_#t~post1#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:50:09,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:50:09,233 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:50:09,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 01:50:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976763037] [2022-11-22 01:50:09,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:50:09,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:50:09,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:50:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:50:09,235 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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 01:50:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:09,406 INFO L93 Difference]: Finished difference Result 115 states and 144 transitions. [2022-11-22 01:50:09,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:50:09,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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 30 [2022-11-22 01:50:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:09,408 INFO L225 Difference]: With dead ends: 115 [2022-11-22 01:50:09,408 INFO L226 Difference]: Without dead ends: 87 [2022-11-22 01:50:09,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 15 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:50:09,409 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 68 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:09,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 12 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:50:09,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-22 01:50:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-22 01:50:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 86 states have internal predecessors, (93), 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 01:50:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2022-11-22 01:50:09,449 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 30 [2022-11-22 01:50:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:09,449 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2022-11-22 01:50:09,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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 01:50:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2022-11-22 01:50:09,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 01:50:09,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:09,452 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:09,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:09,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:09,658 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:09,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:09,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1182208981, now seen corresponding path program 2 times [2022-11-22 01:50:09,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:09,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318457071] [2022-11-22 01:50:09,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:09,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-22 01:50:09,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:09,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318457071] [2022-11-22 01:50:09,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318457071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:09,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:09,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:50:09,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936911769] [2022-11-22 01:50:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:09,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:50:09,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:09,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:50:09,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:09,895 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 01:50:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:09,921 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2022-11-22 01:50:09,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:50:09,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 84 [2022-11-22 01:50:09,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:09,926 INFO L225 Difference]: With dead ends: 87 [2022-11-22 01:50:09,926 INFO L226 Difference]: Without dead ends: 86 [2022-11-22 01:50:09,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:09,928 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:09,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 36 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:50:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-22 01:50:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-22 01:50:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 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 01:50:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2022-11-22 01:50:09,955 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 84 [2022-11-22 01:50:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:09,957 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2022-11-22 01:50:09,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 01:50:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2022-11-22 01:50:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:50:09,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:09,964 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:09,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:50:09,965 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 01:50:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2006227096, now seen corresponding path program 1 times [2022-11-22 01:50:09,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:09,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385812231] [2022-11-22 01:50:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 01:50:10,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:10,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385812231] [2022-11-22 01:50:10,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385812231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:10,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713083357] [2022-11-22 01:50:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:10,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:10,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:10,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:10,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:50:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:10,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:50:10,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 01:50:10,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 01:50:10,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713083357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:10,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [957591876] [2022-11-22 01:50:10,399 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:50:10,399 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:50:10,399 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:50:10,400 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:50:10,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:50:10,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,441 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:50:10,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 01:50:10,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:50:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:50:10,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:50:10,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:50:10,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,573 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-22 01:50:10,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 200 treesize of output 191 [2022-11-22 01:50:10,616 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 15 treesize of output 11 [2022-11-22 01:50:10,647 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 15 treesize of output 11 [2022-11-22 01:50:10,656 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 28 treesize of output 27 [2022-11-22 01:50:10,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2022-11-22 01:50:10,697 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 15 treesize of output 11 [2022-11-22 01:50:10,720 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 15 treesize of output 11 [2022-11-22 01:50:10,735 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 55 treesize of output 54 [2022-11-22 01:50:10,758 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 15 treesize of output 11 [2022-11-22 01:50:10,768 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 15 treesize of output 11 [2022-11-22 01:50:10,777 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 15 treesize of output 11 [2022-11-22 01:50:10,786 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 28 treesize of output 27 [2022-11-22 01:50:10,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2022-11-22 01:50:10,827 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 15 treesize of output 11 [2022-11-22 01:50:10,842 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 15 treesize of output 11 [2022-11-22 01:50:10,857 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 15 treesize of output 11 [2022-11-22 01:50:10,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,867 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 23 treesize of output 22 [2022-11-22 01:50:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:10,893 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:10,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 01:50:10,912 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 15 treesize of output 11 [2022-11-22 01:50:10,935 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 15 treesize of output 11 [2022-11-22 01:50:10,961 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 55 treesize of output 54 [2022-11-22 01:50:10,985 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 15 treesize of output 11 [2022-11-22 01:50:10,994 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 15 treesize of output 11 [2022-11-22 01:50:11,127 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:50:12,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [957591876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:12,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:50:12,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 6, 6] total 21 [2022-11-22 01:50:12,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038528906] [2022-11-22 01:50:12,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:12,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:50:12,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:12,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:50:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:50:12,232 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 01:50:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:12,613 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2022-11-22 01:50:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:50:12,615 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 85 [2022-11-22 01:50:12,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:12,615 INFO L225 Difference]: With dead ends: 86 [2022-11-22 01:50:12,615 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:50:12,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 194 SyntacticMatches, 45 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:50:12,617 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:12,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:50:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:50:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:50:12,618 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 01:50:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:50:12,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2022-11-22 01:50:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:12,618 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:50:12,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 01:50:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:50:12,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:50:12,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-22 01:50:12,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-22 01:50:12,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-22 01:50:12,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-22 01:50:12,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-22 01:50:12,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-22 01:50:12,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-22 01:50:12,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-22 01:50:12,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-22 01:50:12,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-22 01:50:12,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-22 01:50:12,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-22 01:50:12,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-22 01:50:12,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-22 01:50:12,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:12,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:12,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:50:13,403 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-22 01:50:13,403 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse3 (<= 0 |#NULL.offset|)) (.cse4 (<= 0 |#StackHeapBarrier|)) (.cse5 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 .cse2 .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-22 01:50:13,404 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 40) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (<= 0 |#NULL.offset|)) (.cse3 (<= 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~#a~0#1.offset| 0) .cse2 .cse3 (= |#NULL.base| 0)) (and (<= 0 |#NULL.base|) .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) .cse1 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |#NULL.base| 0) .cse2 .cse3))) [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (<= 0 |#NULL.offset|)) (.cse3 (<= 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~#a~0#1.offset| 0) .cse2 .cse3 (= |#NULL.base| 0)) (and (<= 0 |#NULL.base|) .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) .cse1 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |#NULL.base| 0) .cse2 .cse3))) [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point L47-3(line 47) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-22 01:50:13,405 INFO L899 garLoopResultBuilder]: For program point L47-4(line 47) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L895 garLoopResultBuilder]: At program point L47-5(lines 47 49) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (let ((.cse0 (<= 100000 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= 0 |#NULL.offset|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse2 (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) .cse3) (and .cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 0) .cse3))) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse3 (<= 0 |#NULL.offset|)) (.cse4 (<= 0 |#StackHeapBarrier|)) (.cse5 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 .cse2 .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-22 01:50:13,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (<= 0 |#NULL.offset|)) (.cse3 (<= 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~#a~0#1.offset| 0) .cse2 .cse3 (= |#NULL.base| 0)) (and (<= 0 |#NULL.base|) .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) .cse1 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |#NULL.base| 0) .cse2 .cse3))) [2022-11-22 01:50:13,407 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 45) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (<= |#NULL.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse3 (<= 0 |#NULL.offset|)) (.cse4 (<= 0 |#StackHeapBarrier|)) (.cse5 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 .cse2 .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2022-11-22 01:50:13,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-22 01:50:13,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-22 01:50:13,414 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-22 01:50:13,417 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:50:13,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:50:13 BoogieIcfgContainer [2022-11-22 01:50:13,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:50:13,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:50:13,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:50:13,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:50:13,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:02" (3/4) ... [2022-11-22 01:50:13,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:50:13,474 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-22 01:50:13,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-22 01:50:13,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:50:13,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:50:13,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((i <= 2147483646 && ((((((((((100000 <= i && 0 <= a) && x <= 2147483647) && #NULL <= 0) && cond <= 1) && 1 <= x) && \old(cond) <= 1) && 0 <= cond) && 0 <= \old(cond)) && 0 <= #NULL) || (((((100000 <= i && 0 <= x) && 0 <= a) && #NULL <= 0) && x <= 0) && 0 <= #NULL))) && a == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-11-22 01:50:13,524 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:50:13,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:50:13,526 INFO L158 Benchmark]: Toolchain (without parser) took 11675.60ms. Allocated memory was 127.9MB in the beginning and 209.7MB in the end (delta: 81.8MB). Free memory was 63.2MB in the beginning and 79.0MB in the end (delta: -15.9MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,526 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 127.9MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:50:13,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.27ms. Allocated memory is still 127.9MB. Free memory was 63.0MB in the beginning and 52.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 127.9MB. Free memory was 52.6MB in the beginning and 51.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,528 INFO L158 Benchmark]: Boogie Preprocessor took 28.01ms. Allocated memory is still 127.9MB. Free memory was 51.0MB in the beginning and 49.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:50:13,529 INFO L158 Benchmark]: RCFGBuilder took 537.66ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 49.7MB in the beginning and 135.7MB in the end (delta: -86.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,529 INFO L158 Benchmark]: TraceAbstraction took 10753.77ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 134.8MB in the beginning and 82.1MB in the end (delta: 52.6MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,530 INFO L158 Benchmark]: Witness Printer took 66.70ms. Allocated memory is still 209.7MB. Free memory was 82.1MB in the beginning and 79.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:50:13,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 127.9MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.27ms. Allocated memory is still 127.9MB. Free memory was 63.0MB in the beginning and 52.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 127.9MB. Free memory was 52.6MB in the beginning and 51.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.01ms. Allocated memory is still 127.9MB. Free memory was 51.0MB in the beginning and 49.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 537.66ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 49.7MB in the beginning and 135.7MB in the end (delta: -86.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10753.77ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 134.8MB in the beginning and 82.1MB in the end (delta: 52.6MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. * Witness Printer took 66.70ms. Allocated memory is still 209.7MB. Free memory was 82.1MB in the beginning and 79.0MB 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: 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, 37 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 595 IncrementalHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 48 mSDtfsCounter, 595 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 315 SyntacticMatches, 76 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1557 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=5, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 38 NumberOfFragments, 370 HoareAnnotationTreeSize, 7 FomulaSimplifications, 186 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 617 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 586 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 514/589 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: 2.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 47, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 171, TOOLS_POST_TIME: 1.6s, 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: 171, TOOLS_QUANTIFIERELIM_TIME: 1.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 309, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 26, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 39, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 47, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 13, LOOP_SUMMARIZER_CACHE_MISSES: 13, LOOP_SUMMARIZER_OVERALL_TIME: 1.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 39, 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: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 3718, DAG_COMPRESSION_RETAINED_NODES: 172, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((0 <= a && 1 <= i) && i <= 2147483646) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((i <= 2147483646 && ((((((((((100000 <= i && 0 <= a) && x <= 2147483647) && #NULL <= 0) && cond <= 1) && 1 <= x) && \old(cond) <= 1) && 0 <= cond) && 0 <= \old(cond)) && 0 <= #NULL) || (((((100000 <= i && 0 <= x) && 0 <= a) && #NULL <= 0) && x <= 0) && 0 <= #NULL))) && a == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= #NULL && 0 <= a) && 1 <= i) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= #NULL && 0 <= a) && 1 <= i) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((((0 <= a && 1 <= i) && i <= 2147483646) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= #NULL && 0 <= a) && 1 <= i) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((0 <= a && 1 <= i) && i <= 2147483646) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((i == 0 && 0 <= a) && #NULL <= 0) && a == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:50:13,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f495c2e-56d5-4e87-9666-8aa7f0a63776/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