./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_palindrome_ground.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 4e7fbc69
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_palindrome_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 270a2842345dc5b188d8b64dce3436ccc5910bc1472a41053bc5c00e7f4ceeb6
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-4e7fbc6
[2022-11-23 14:19:06,093 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-23 14:19:06,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 14:19:06,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 14:19:06,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 14:19:06,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 14:19:06,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 14:19:06,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 14:19:06,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 14:19:06,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 14:19:06,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 14:19:06,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 14:19:06,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 14:19:06,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 14:19:06,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 14:19:06,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 14:19:06,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 14:19:06,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 14:19:06,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 14:19:06,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 14:19:06,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 14:19:06,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 14:19:06,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 14:19:06,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 14:19:06,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 14:19:06,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 14:19:06,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 14:19:06,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 14:19:06,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 14:19:06,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 14:19:06,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 14:19:06,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 14:19:06,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 14:19:06,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 14:19:06,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 14:19:06,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 14:19:06,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 14:19:06,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 14:19:06,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 14:19:06,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 14:19:06,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 14:19:06,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf
[2022-11-23 14:19:06,248 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-23 14:19:06,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 14:19:06,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 14:19:06,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 14:19:06,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 14:19:06,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 14:19:06,251 INFO L138 SettingsManager]: * User list type=DISABLED
[2022-11-23 14:19:06,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 14:19:06,251 INFO L138 SettingsManager]: * Explicit value domain=true
[2022-11-23 14:19:06,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-11-23 14:19:06,253 INFO L138 SettingsManager]: * Octagon Domain=false
[2022-11-23 14:19:06,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2022-11-23 14:19:06,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2022-11-23 14:19:06,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2022-11-23 14:19:06,254 INFO L138 SettingsManager]: * Interval Domain=false
[2022-11-23 14:19:06,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-11-23 14:19:06,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2022-11-23 14:19:06,255 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC
[2022-11-23 14:19:06,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 14:19:06,256 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-23 14:19:06,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 14:19:06,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-23 14:19:06,257 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-23 14:19:06,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-23 14:19:06,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-23 14:19:06,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 14:19:06,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-23 14:19:06,258 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-11-23 14:19:06,258 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-23 14:19:06,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-23 14:19:06,259 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-23 14:19:06,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-23 14:19:06,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 14:19:06,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-23 14:19:06,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:19:06,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 14:19:06,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
[2022-11-23 14:19:06,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 14:19:06,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-23 14:19:06,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2022-11-23 14:19:06,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 14:19:06,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-23 14:19:06,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2022-11-23 14:19:06,262 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_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 270a2842345dc5b188d8b64dce3436ccc5910bc1472a41053bc5c00e7f4ceeb6
[2022-11-23 14:19:06,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 14:19:06,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 14:19:06,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 14:19:06,609 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-23 14:19:06,610 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-23 14:19:06,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/array-examples/standard_palindrome_ground.i
[2022-11-23 14:19:09,683 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-23 14:19:09,938 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-23 14:19:09,939 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/sv-benchmarks/c/array-examples/standard_palindrome_ground.i
[2022-11-23 14:19:09,946 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/data/b156453a3/13a4dd06a5784e6c9269b4b004ca1f35/FLAG23bae1755
[2022-11-23 14:19:09,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/data/b156453a3/13a4dd06a5784e6c9269b4b004ca1f35
[2022-11-23 14:19:09,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 14:19:09,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 14:19:09,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 14:19:09,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 14:19:09,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 14:19:09,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:09" (1/1) ...
[2022-11-23 14:19:09,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fc9aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:09, skipping insertion in model container
[2022-11-23 14:19:09,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:09" (1/1) ...
[2022-11-23 14:19:09,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-23 14:19:09,993 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-23 14:19:10,136 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_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/sv-benchmarks/c/array-examples/standard_palindrome_ground.i[819,832]
[2022-11-23 14:19:10,150 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:19:10,160 INFO L203 MainTranslator]: Completed pre-run
[2022-11-23 14:19:10,171 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_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/sv-benchmarks/c/array-examples/standard_palindrome_ground.i[819,832]
[2022-11-23 14:19:10,178 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:19:10,192 INFO L208 MainTranslator]: Completed translation
[2022-11-23 14:19:10,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10 WrapperNode
[2022-11-23 14:19:10,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 14:19:10,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 14:19:10,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 14:19:10,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 14:19:10,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,230 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72
[2022-11-23 14:19:10,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 14:19:10,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 14:19:10,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 14:19:10,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 14:19:10,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 14:19:10,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 14:19:10,255 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 14:19:10,255 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-23 14:19:10,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (1/1) ...
[2022-11-23 14:19:10,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:19:10,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:10,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 14:19:10,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 14:19:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 14:19:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-23 14:19:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 14:19:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-23 14:19:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 14:19:10,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 14:19:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-23 14:19:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 14:19:10,403 INFO L235 CfgBuilder]: Building ICFG
[2022-11-23 14:19:10,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 14:19:10,577 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-23 14:19:10,645 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 14:19:10,645 INFO L300 CfgBuilder]: Removed 3 assume(true) statements.
[2022-11-23 14:19:10,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:10 BoogieIcfgContainer
[2022-11-23 14:19:10,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 14:19:10,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 14:19:10,681 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 14:19:10,685 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-23 14:19:10,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:09" (1/3) ...
[2022-11-23 14:19:10,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9978359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:10, skipping insertion in model container
[2022-11-23 14:19:10,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:10" (2/3) ...
[2022-11-23 14:19:10,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9978359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:10, skipping insertion in model container
[2022-11-23 14:19:10,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:10" (3/3) ...
[2022-11-23 14:19:10,688 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_palindrome_ground.i
[2022-11-23 14:19:10,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 14:19:10,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations.
[2022-11-23 14:19:10,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-23 14:19:10,776 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;@49be5e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 14:19:10,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations.
[2022-11-23 14:19:10,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2022-11-23 14:19:10,789 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:10,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2022-11-23 14:19:10,790 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)] ===
[2022-11-23 14:19:10,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash 118991, now seen corresponding path program 1 times
[2022-11-23 14:19:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:10,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851259314]
[2022-11-23 14:19:10,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:11,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:11,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851259314]
[2022-11-23 14:19:11,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851259314] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:11,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 14:19:11,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-23 14:19:11,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016386861]
[2022-11-23 14:19:11,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:11,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-23 14:19:11,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-23 14:19:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-23 14:19:11,118 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:11,265 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions.
[2022-11-23 14:19:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-23 14:19:11,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2022-11-23 14:19:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:11,279 INFO L225 Difference]: With dead ends: 74
[2022-11-23 14:19:11,279 INFO L226 Difference]: Without dead ends: 44
[2022-11-23 14:19:11,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-23 14:19:11,285 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:11,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 14:19:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-11-23 14:19:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40.
[2022-11-23 14:19:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 39 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions.
[2022-11-23 14:19:11,321 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 3
[2022-11-23 14:19:11,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:11,322 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions.
[2022-11-23 14:19:11,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions.
[2022-11-23 14:19:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-23 14:19:11,323 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:11,323 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-11-23 14:19:11,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-23 14:19:11,324 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)] ===
[2022-11-23 14:19:11,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash -750058538, now seen corresponding path program 1 times
[2022-11-23 14:19:11,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:11,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740542163]
[2022-11-23 14:19:11,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:11,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:11,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:11,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740542163]
[2022-11-23 14:19:11,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740542163] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:11,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656136903]
[2022-11-23 14:19:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:11,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:11,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:11,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:11,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-23 14:19:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:11,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-23 14:19:11,609 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:11,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 14:19:11,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656136903] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:11,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-23 14:19:11,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2022-11-23 14:19:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537656940]
[2022-11-23 14:19:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:11,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-23 14:19:11,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-23 14:19:11,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-11-23 14:19:11,686 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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)
[2022-11-23 14:19:11,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:11,763 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions.
[2022-11-23 14:19:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-23 14:19:11,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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
[2022-11-23 14:19:11,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:11,765 INFO L225 Difference]: With dead ends: 44
[2022-11-23 14:19:11,765 INFO L226 Difference]: Without dead ends: 43
[2022-11-23 14:19:11,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2022-11-23 14:19:11,767 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 43 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:11,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 46 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 14:19:11,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2022-11-23 14:19:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39.
[2022-11-23 14:19:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions.
[2022-11-23 14:19:11,774 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 6
[2022-11-23 14:19:11,774 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:11,774 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions.
[2022-11-23 14:19:11,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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)
[2022-11-23 14:19:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions.
[2022-11-23 14:19:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-23 14:19:11,775 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:11,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1]
[2022-11-23 14:19:11,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:11,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:11,982 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)] ===
[2022-11-23 14:19:11,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:11,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1776978152, now seen corresponding path program 1 times
[2022-11-23 14:19:11,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:11,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536168137]
[2022-11-23 14:19:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:11,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:12,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536168137]
[2022-11-23 14:19:12,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536168137] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:12,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 14:19:12,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-23 14:19:12,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973472016]
[2022-11-23 14:19:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:12,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 14:19:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:12,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 14:19:12,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 14:19:12,044 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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)
[2022-11-23 14:19:12,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:12,063 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions.
[2022-11-23 14:19:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-23 14:19:12,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) 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
[2022-11-23 14:19:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:12,065 INFO L225 Difference]: With dead ends: 39
[2022-11-23 14:19:12,065 INFO L226 Difference]: Without dead ends: 38
[2022-11-23 14:19:12,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 14:19:12,067 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:12,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 14:19:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2022-11-23 14:19:12,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36.
[2022-11-23 14:19:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 35 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)
[2022-11-23 14:19:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions.
[2022-11-23 14:19:12,074 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 7
[2022-11-23 14:19:12,074 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:12,074 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions.
[2022-11-23 14:19:12,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) 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)
[2022-11-23 14:19:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions.
[2022-11-23 14:19:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-23 14:19:12,075 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:12,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:12,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-23 14:19:12,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:12,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:12,077 INFO L85 PathProgramCache]: Analyzing trace with hash 112365586, now seen corresponding path program 1 times
[2022-11-23 14:19:12,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:12,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569613556]
[2022-11-23 14:19:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:12,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:12,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:12,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569613556]
[2022-11-23 14:19:12,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569613556] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:12,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264860244]
[2022-11-23 14:19:12,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:12,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:12,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:12,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:12,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-23 14:19:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:12,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-23 14:19:12,240 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:12,279 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 14:19:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 14:19:12,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264860244] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 14:19:12,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [113836198]
[2022-11-23 14:19:12,357 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest
[2022-11-23 14:19:12,358 INFO L166 IcfgInterpreter]: Building call graph
[2022-11-23 14:19:12,367 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 14:19:12,374 INFO L176 IcfgInterpreter]: Starting interpretation
[2022-11-23 14:19:12,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 14:19:12,469 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:12,502 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-23 14:19:12,502 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
[2022-11-23 14:19:12,528 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:12,551 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2022-11-23 14:19:12,552 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
[2022-11-23 14:19:12,599 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:12,602 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
[2022-11-23 14:19:12,676 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:12,678 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:12,681 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 46 treesize of output 47
[2022-11-23 14:19:13,037 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:13,040 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:13,042 INFO L173 IndexEqualityManager]: detected equality via solver
[2022-11-23 14:19:13,046 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:13,062 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size
[2022-11-23 14:19:13,063 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 221 treesize of output 209
[2022-11-23 14:19:13,302 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
[2022-11-23 14:19:13,362 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:13,364 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 24 treesize of output 24
[2022-11-23 14:19:13,380 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
[2022-11-23 14:19:13,393 INFO L180 IcfgInterpreter]: Interpretation finished
[2022-11-23 14:19:13,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [113836198] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:13,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2022-11-23 14:19:13,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14
[2022-11-23 14:19:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646832148]
[2022-11-23 14:19:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:13,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-23 14:19:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-23 14:19:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2022-11-23 14:19:13,923 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:14,423 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions.
[2022-11-23 14:19:14,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-23 14:19:14,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2022-11-23 14:19:14,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:14,428 INFO L225 Difference]: With dead ends: 68
[2022-11-23 14:19:14,428 INFO L226 Difference]: Without dead ends: 62
[2022-11-23 14:19:14,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272
[2022-11-23 14:19:14,430 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:14,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 85 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-11-23 14:19:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2022-11-23 14:19:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43.
[2022-11-23 14:19:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions.
[2022-11-23 14:19:14,445 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 11
[2022-11-23 14:19:14,445 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:14,446 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions.
[2022-11-23 14:19:14,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions.
[2022-11-23 14:19:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-11-23 14:19:14,447 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:14,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:14,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:14,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:14,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:14,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1275782222, now seen corresponding path program 1 times
[2022-11-23 14:19:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:14,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042271078]
[2022-11-23 14:19:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:14,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:14,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:14,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042271078]
[2022-11-23 14:19:14,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042271078] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:14,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823388283]
[2022-11-23 14:19:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:14,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:14,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:14,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:14,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-23 14:19:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:14,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-23 14:19:14,855 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-23 14:19:14,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 14:19:14,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823388283] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:14,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-23 14:19:14,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6
[2022-11-23 14:19:14,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370440647]
[2022-11-23 14:19:14,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:14,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 14:19:14,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 14:19:14,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:14,875 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:14,923 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions.
[2022-11-23 14:19:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-23 14:19:14,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15
[2022-11-23 14:19:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:14,928 INFO L225 Difference]: With dead ends: 54
[2022-11-23 14:19:14,928 INFO L226 Difference]: Without dead ends: 52
[2022-11-23 14:19:14,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:14,933 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:14,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 37 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 14:19:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-23 14:19:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47.
[2022-11-23 14:19:14,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.457142857142857) internal successors, (51), 46 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions.
[2022-11-23 14:19:14,953 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 15
[2022-11-23 14:19:14,953 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:14,954 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions.
[2022-11-23 14:19:14,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions.
[2022-11-23 14:19:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-23 14:19:14,955 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:14,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:14,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:15,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:15,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash 894543306, now seen corresponding path program 1 times
[2022-11-23 14:19:15,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:15,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404260754]
[2022-11-23 14:19:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:15,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:15,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:15,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404260754]
[2022-11-23 14:19:15,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404260754] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:15,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005056199]
[2022-11-23 14:19:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:15,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:15,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:15,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:15,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-23 14:19:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:15,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-23 14:19:15,301 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-23 14:19:15,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 14:19:15,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005056199] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:15,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-23 14:19:15,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6
[2022-11-23 14:19:15,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856903030]
[2022-11-23 14:19:15,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:15,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 14:19:15,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 14:19:15,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:15,314 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:15,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:15,345 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions.
[2022-11-23 14:19:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-23 14:19:15,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16
[2022-11-23 14:19:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:15,346 INFO L225 Difference]: With dead ends: 54
[2022-11-23 14:19:15,347 INFO L226 Difference]: Without dead ends: 52
[2022-11-23 14:19:15,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:15,348 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:15,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 14:19:15,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-23 14:19:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48.
[2022-11-23 14:19:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions.
[2022-11-23 14:19:15,359 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 16
[2022-11-23 14:19:15,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:15,361 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions.
[2022-11-23 14:19:15,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:15,362 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions.
[2022-11-23 14:19:15,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-23 14:19:15,362 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:15,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:15,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:15,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2022-11-23 14:19:15,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1421539799, now seen corresponding path program 1 times
[2022-11-23 14:19:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473665065]
[2022-11-23 14:19:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-11-23 14:19:15,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473665065]
[2022-11-23 14:19:15,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473665065] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668645145]
[2022-11-23 14:19:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:15,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:15,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:15,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:15,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-11-23 14:19:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:15,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-23 14:19:15,689 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-11-23 14:19:15,722 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 14:19:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-11-23 14:19:15,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668645145] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 14:19:15,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1106885418]
[2022-11-23 14:19:15,757 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest
[2022-11-23 14:19:15,757 INFO L166 IcfgInterpreter]: Building call graph
[2022-11-23 14:19:15,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 14:19:15,758 INFO L176 IcfgInterpreter]: Starting interpretation
[2022-11-23 14:19:15,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 14:19:15,773 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,785 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-23 14:19:15,786 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
[2022-11-23 14:19:15,796 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,811 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2022-11-23 14:19:15,812 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
[2022-11-23 14:19:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,835 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
[2022-11-23 14:19:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,875 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 46 treesize of output 47
[2022-11-23 14:19:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,991 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:15,993 INFO L173 IndexEqualityManager]: detected equality via solver
[2022-11-23 14:19:15,995 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,001 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size
[2022-11-23 14:19:16,001 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 237 treesize of output 206
[2022-11-23 14:19:16,063 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
[2022-11-23 14:19:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,105 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 24 treesize of output 24
[2022-11-23 14:19:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,170 INFO L321 Elim1Store]: treesize reduction 25, result has 34.2 percent of original size
[2022-11-23 14:19:16,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 76
[2022-11-23 14:19:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,256 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 24 treesize of output 24
[2022-11-23 14:19:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:16,319 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 24 treesize of output 24
[2022-11-23 14:19:16,342 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
[2022-11-23 14:19:16,351 INFO L180 IcfgInterpreter]: Interpretation finished
[2022-11-23 14:19:16,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1106885418] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:16,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2022-11-23 14:19:16,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 15
[2022-11-23 14:19:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797591975]
[2022-11-23 14:19:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-23 14:19:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-23 14:19:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2022-11-23 14:19:16,951 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:17,480 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions.
[2022-11-23 14:19:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 14:19:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2022-11-23 14:19:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:17,481 INFO L225 Difference]: With dead ends: 50
[2022-11-23 14:19:17,482 INFO L226 Difference]: Without dead ends: 44
[2022-11-23 14:19:17,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342
[2022-11-23 14:19:17,483 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:17,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 55 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 14:19:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-11-23 14:19:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31.
[2022-11-23 14:19:17,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2022-11-23 14:19:17,489 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 18
[2022-11-23 14:19:17,490 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:17,490 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2022-11-23 14:19:17,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2022-11-23 14:19:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-11-23 14:19:17,490 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:17,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:17,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-11-23 14:19:17,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:17,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash -932352195, now seen corresponding path program 1 times
[2022-11-23 14:19:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:17,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021312152]
[2022-11-23 14:19:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:17,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021312152]
[2022-11-23 14:19:17,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021312152] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847089955]
[2022-11-23 14:19:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:17,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:17,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:17,769 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:17,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-11-23 14:19:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:17,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-23 14:19:17,836 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:17,856 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 14:19:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 14:19:17,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847089955] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 14:19:17,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [90298551]
[2022-11-23 14:19:17,886 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest
[2022-11-23 14:19:17,886 INFO L166 IcfgInterpreter]: Building call graph
[2022-11-23 14:19:17,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 14:19:17,887 INFO L176 IcfgInterpreter]: Starting interpretation
[2022-11-23 14:19:17,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 14:19:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:17,932 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2022-11-23 14:19:17,933 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
[2022-11-23 14:19:17,941 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:17,942 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
[2022-11-23 14:19:17,960 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:17,961 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
[2022-11-23 14:19:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:17,989 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 56 treesize of output 52
[2022-11-23 14:19:18,076 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,078 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,080 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,081 INFO L173 IndexEqualityManager]: detected equality via solver
[2022-11-23 14:19:18,082 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,096 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size
[2022-11-23 14:19:18,096 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 221 treesize of output 209
[2022-11-23 14:19:18,206 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
[2022-11-23 14:19:18,241 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,242 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 24 treesize of output 24
[2022-11-23 14:19:18,254 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,255 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,256 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,257 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,258 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,259 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43
[2022-11-23 14:19:18,310 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,311 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,312 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,313 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,314 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,316 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,317 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,318 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,319 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,320 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,326 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size
[2022-11-23 14:19:18,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 100
[2022-11-23 14:19:18,366 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,367 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 24 treesize of output 24
[2022-11-23 14:19:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:18,438 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 24 treesize of output 24
[2022-11-23 14:19:18,461 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
[2022-11-23 14:19:18,469 INFO L180 IcfgInterpreter]: Interpretation finished
[2022-11-23 14:19:19,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [90298551] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:19,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2022-11-23 14:19:19,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4, 4, 4] total 20
[2022-11-23 14:19:19,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240754545]
[2022-11-23 14:19:19,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:19,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2022-11-23 14:19:19,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:19,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2022-11-23 14:19:19,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420
[2022-11-23 14:19:19,343 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:20,421 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions.
[2022-11-23 14:19:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2022-11-23 14:19:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2022-11-23 14:19:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:20,422 INFO L225 Difference]: With dead ends: 70
[2022-11-23 14:19:20,422 INFO L226 Difference]: Without dead ends: 44
[2022-11-23 14:19:20,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=171, Invalid=699, Unknown=0, NotChecked=0, Total=870
[2022-11-23 14:19:20,424 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 64 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:20,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 27 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-11-23 14:19:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-11-23 14:19:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36.
[2022-11-23 14:19:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 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)
[2022-11-23 14:19:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions.
[2022-11-23 14:19:20,430 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 19
[2022-11-23 14:19:20,431 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:20,431 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions.
[2022-11-23 14:19:20,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions.
[2022-11-23 14:19:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-11-23 14:19:20,431 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:20,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:20,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:20,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:20,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash -130133655, now seen corresponding path program 1 times
[2022-11-23 14:19:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:20,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895763642]
[2022-11-23 14:19:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-11-23 14:19:20,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:20,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895763642]
[2022-11-23 14:19:20,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895763642] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:20,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773804825]
[2022-11-23 14:19:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:20,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:20,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:20,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:20,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-11-23 14:19:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:20,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-23 14:19:20,817 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-11-23 14:19:20,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 14:19:20,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773804825] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:20,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-23 14:19:20,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2022-11-23 14:19:20,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874877601]
[2022-11-23 14:19:20,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:20,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 14:19:20,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 14:19:20,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:20,827 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:20,848 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions.
[2022-11-23 14:19:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-23 14:19:20,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 25
[2022-11-23 14:19:20,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:20,849 INFO L225 Difference]: With dead ends: 36
[2022-11-23 14:19:20,849 INFO L226 Difference]: Without dead ends: 34
[2022-11-23 14:19:20,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-23 14:19:20,850 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:20,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 14:19:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-11-23 14:19:20,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34.
[2022-11-23 14:19:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 33 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)
[2022-11-23 14:19:20,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions.
[2022-11-23 14:19:20,857 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 25
[2022-11-23 14:19:20,857 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:20,857 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions.
[2022-11-23 14:19:20,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:20,858 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions.
[2022-11-23 14:19:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2022-11-23 14:19:20,858 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 14:19:20,858 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:20,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:21,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:21,071 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] ===
[2022-11-23 14:19:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:19:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 260824079, now seen corresponding path program 1 times
[2022-11-23 14:19:21,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:19:21,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420648117]
[2022-11-23 14:19:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:21,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:19:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-11-23 14:19:21,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 14:19:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420648117]
[2022-11-23 14:19:21,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420648117] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 14:19:21,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891644554]
[2022-11-23 14:19:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:19:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:19:21,136 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 14:19:21,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-11-23 14:19:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 14:19:21,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-23 14:19:21,210 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 14:19:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-11-23 14:19:21,246 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 14:19:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-11-23 14:19:21,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891644554] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 14:19:21,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [347291944]
[2022-11-23 14:19:21,309 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest
[2022-11-23 14:19:21,309 INFO L166 IcfgInterpreter]: Building call graph
[2022-11-23 14:19:21,309 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 14:19:21,310 INFO L176 IcfgInterpreter]: Starting interpretation
[2022-11-23 14:19:21,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 14:19:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,341 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2022-11-23 14:19:21,342 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
[2022-11-23 14:19:21,349 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,350 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
[2022-11-23 14:19:21,365 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,366 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
[2022-11-23 14:19:21,389 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,390 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,391 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 46 treesize of output 47
[2022-11-23 14:19:21,474 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,476 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,478 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,479 INFO L173 IndexEqualityManager]: detected equality via solver
[2022-11-23 14:19:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,494 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size
[2022-11-23 14:19:21,495 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 221 treesize of output 209
[2022-11-23 14:19:21,603 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
[2022-11-23 14:19:21,646 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,647 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 24 treesize of output 24
[2022-11-23 14:19:21,660 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,661 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,662 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,663 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,664 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,665 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43
[2022-11-23 14:19:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,725 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,728 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,730 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,744 INFO L321 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size
[2022-11-23 14:19:21,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 100
[2022-11-23 14:19:21,784 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,786 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 24 treesize of output 24
[2022-11-23 14:19:21,835 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-23 14:19:21,836 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 24 treesize of output 24
[2022-11-23 14:19:22,092 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
[2022-11-23 14:19:22,101 INFO L180 IcfgInterpreter]: Interpretation finished
[2022-11-23 14:19:23,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [347291944] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 14:19:23,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2022-11-23 14:19:23,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 6, 6] total 27
[2022-11-23 14:19:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851932607]
[2022-11-23 14:19:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 14:19:23,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-11-23 14:19:23,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 14:19:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-11-23 14:19:23,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702
[2022-11-23 14:19:23,439 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 14:19:25,124 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions.
[2022-11-23 14:19:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-11-23 14:19:25,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 26
[2022-11-23 14:19:25,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 14:19:25,125 INFO L225 Difference]: With dead ends: 42
[2022-11-23 14:19:25,125 INFO L226 Difference]: Without dead ends: 0
[2022-11-23 14:19:25,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=239, Invalid=1093, Unknown=0, NotChecked=0, Total=1332
[2022-11-23 14:19:25,127 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-11-23 14:19:25,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-11-23 14:19:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-23 14:19:25,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-23 14:19:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-23 14:19:25,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2022-11-23 14:19:25,129 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-23 14:19:25,129 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-23 14:19:25,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 14:19:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-23 14:19:25,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-23 14:19:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining)
[2022-11-23 14:19:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining)
[2022-11-23 14:19:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining)
[2022-11-23 14:19:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining)
[2022-11-23 14:19:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining)
[2022-11-23 14:19:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining)
[2022-11-23 14:19:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining)
[2022-11-23 14:19:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining)
[2022-11-23 14:19:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining)
[2022-11-23 14:19:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining)
[2022-11-23 14:19:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining)
[2022-11-23 14:19:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining)
[2022-11-23 14:19:25,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining)
[2022-11-23 14:19:25,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining)
[2022-11-23 14:19:25,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-11-23 14:19:25,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 14:19:25,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-23 14:19:25,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed.
[2022-11-23 14:19:25,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed.
[2022-11-23 14:19:25,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed.
[2022-11-23 14:19:25,743 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 27) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (let ((.cse0 (<= 50000 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 0 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~x~0#1| 0)))) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (or (and (exists ((|v_ULTIMATE.start_main_#t~mem6#1_22| Int)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| 400000 (* |ULTIMATE.start_main_~x~0#1| (- 4)))) |v_ULTIMATE.start_main_#t~mem6#1_22|) 1 0))) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|)) (= |ULTIMATE.start_main_~x~0#1| 0)) (<= |ULTIMATE.start_main_~i~0#1| 50000) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point L21-4(line 21) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L895 garLoopResultBuilder]: At program point L21-5(lines 21 23) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| 50000) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,744 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L22-2(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed.
[2022-11-23 14:19:25,745 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (or (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~i~0#1| 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) 400000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 29 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (and (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)))
[2022-11-23 14:19:25,746 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed.
[2022-11-23 14:19:25,746 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed.
[2022-11-23 14:19:25,749 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:19:25,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-23 14:19:25,777 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
[2022-11-23 14:19:25,780 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
[2022-11-23 14:19:25,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:19:25 BoogieIcfgContainer
[2022-11-23 14:19:25,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-23 14:19:25,791 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-23 14:19:25,791 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-23 14:19:25,791 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-23 14:19:25,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:10" (3/4) ...
[2022-11-23 14:19:25,797 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-23 14:19:25,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges
[2022-11-23 14:19:25,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2022-11-23 14:19:25,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2022-11-23 14:19:25,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-23 14:19:25,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 <= A && (((x <= 2147483647 && 1 <= x) && 50000 <= i) || ((0 <= x && 50000 <= i) && x <= 0))) && A == 0) && #NULL == 0) && ((((\exists v_ULTIMATE.start_main_#t~mem6#1_22 : int :: unknown-#in~cond-unknown == (if unknown-#memory_int-unknown[A][A + 400000 + x * -4] == v_ULTIMATE.start_main_#t~mem6#1_22 then 1 else 0)) && !(cond == 0)) && cond == unknown-#in~cond-unknown) || x == 0)) && i <= 50000) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0
[2022-11-23 14:19:25,852 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/witness.graphml
[2022-11-23 14:19:25,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-23 14:19:25,853 INFO L158 Benchmark]: Toolchain (without parser) took 15889.12ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 105.8MB in the beginning and 89.0MB in the end (delta: 16.8MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,853 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:19:25,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.68ms. Allocated memory is still 136.3MB. Free memory was 105.8MB in the beginning and 95.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.60ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 94.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:19:25,858 INFO L158 Benchmark]: Boogie Preprocessor took 23.09ms. Allocated memory is still 136.3MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,858 INFO L158 Benchmark]: RCFGBuilder took 423.73ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 77.9MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,858 INFO L158 Benchmark]: TraceAbstraction took 15109.18ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 77.3MB in the beginning and 92.1MB in the end (delta: -14.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,859 INFO L158 Benchmark]: Witness Printer took 61.60ms. Allocated memory is still 201.3MB. Free memory was 92.1MB in the beginning and 89.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 14:19:25,860 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 109.1MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 228.68ms. Allocated memory is still 136.3MB. Free memory was 105.8MB in the beginning and 95.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 36.60ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 94.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 23.09ms. Allocated memory is still 136.3MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 423.73ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 77.9MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 15109.18ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 77.3MB in the beginning and 92.1MB in the end (delta: -14.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB.
* Witness Printer took 61.60ms. Allocated memory is still 201.3MB. Free memory was 92.1MB in the beginning and 89.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
* 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: 18]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 18]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 22]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 22]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 22]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 22]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 21]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 21]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: 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, 33 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 417 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 261 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 744 IncrementalHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 156 mSDtfsCounter, 744 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 209 SyntacticMatches, 9 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=6, InterpolantAutomatonStates: 68, 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, 10 MinimizatonAttempts, 59 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 192 HoareAnnotationTreeSize, 3 FomulaSimplifications, 650 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 398 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 7 NumberOfNonLiveVariables, 639 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 63/88 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: 3.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 65, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 200, TOOLS_POST_TIME: 2.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 200, TOOLS_QUANTIFIERELIM_TIME: 2.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 320, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 28, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 16, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 24, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 65, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 2.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 24, 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: 1770, DAG_COMPRESSION_RETAINED_NODES: 212, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
14 specifications checked. All of them hold
- InvariantResult [Line: 18]: Loop Invariant
Derived loop invariant: ((((((((((((((i == 0 && unknown-#StackHeapBarrier-unknown < A) && 2 == unknown-#length-unknown[1]) && \valid[A] == 1) && unknown-#length-unknown[A] == 400000) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 29 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= #NULL && A <= 0) && 1 <= i) && i <= 2147483647) && 0 <= A) && #NULL <= 0) && 0 <= A) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown)
- InvariantResult [Line: 25]: Loop Invariant
[2022-11-23 14:19:25,876 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
[2022-11-23 14:19:25,877 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~mem6#1_22,QUANTIFIED]
Derived loop invariant: ((((((0 <= A && (((x <= 2147483647 && 1 <= x) && 50000 <= i) || ((0 <= x && 50000 <= i) && x <= 0))) && A == 0) && #NULL == 0) && ((((\exists v_ULTIMATE.start_main_#t~mem6#1_22 : int :: unknown-#in~cond-unknown == (if unknown-#memory_int-unknown[A][A + 400000 + x * -4] == v_ULTIMATE.start_main_#t~mem6#1_22 then 1 else 0)) && !(cond == 0)) && cond == unknown-#in~cond-unknown) || x == 0)) && i <= 50000) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0
- InvariantResult [Line: 21]: Loop Invariant
Derived loop invariant: (((((0 <= A && A == 0) && 0 <= i) && #NULL == 0) && i <= 50000) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0
RESULT: Ultimate proved your program to be correct!
[2022-11-23 14:19:25,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c4fc6d1-97ca-467b-917d-8ecafe4fc662/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE