./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for overflows
Using default analysis
Version 4e77c044
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 139ef67971e7ed714d59975d45ea043b5c6a1676
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Using bit-precise analysis
No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config using search string *Overflow*32bit*_Bitvector*.epf
No suitable settings file found using Overflow*32bit*_Bitvector
ERROR: UNSUPPORTED PROPERTY
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-4e77c04
[2021-10-13 00:43:24,515 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-13 00:43:24,518 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-13 00:43:24,585 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-13 00:43:24,586 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-13 00:43:24,591 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-13 00:43:24,594 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-13 00:43:24,599 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-13 00:43:24,602 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-13 00:43:24,611 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-13 00:43:24,612 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-13 00:43:24,615 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-13 00:43:24,615 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-13 00:43:24,619 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-13 00:43:24,622 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-13 00:43:24,629 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-13 00:43:24,631 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-13 00:43:24,632 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-13 00:43:24,634 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-13 00:43:24,637 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-13 00:43:24,639 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-13 00:43:24,641 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-13 00:43:24,642 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-13 00:43:24,644 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-13 00:43:24,647 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-13 00:43:24,648 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-13 00:43:24,649 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-13 00:43:24,650 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-13 00:43:24,651 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-13 00:43:24,652 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-13 00:43:24,652 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-13 00:43:24,654 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-13 00:43:24,655 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-13 00:43:24,656 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-13 00:43:24,657 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-13 00:43:24,658 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-13 00:43:24,659 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-13 00:43:24,659 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-13 00:43:24,660 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-13 00:43:24,661 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-13 00:43:24,662 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-13 00:43:24,663 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2021-10-13 00:43:24,690 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-13 00:43:24,691 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-13 00:43:24,691 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-13 00:43:24,692 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-13 00:43:24,693 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-13 00:43:24,694 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-13 00:43:24,694 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-13 00:43:24,694 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-13 00:43:24,695 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-13 00:43:24,695 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-10-13 00:43:24,695 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-13 00:43:24,696 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-13 00:43:24,696 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-13 00:43:24,696 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-13 00:43:24,697 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-13 00:43:24,697 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-13 00:43:24,697 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2021-10-13 00:43:24,698 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-13 00:43:24,698 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-13 00:43:24,698 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-13 00:43:24,699 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-13 00:43:24,699 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-13 00:43:24,699 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-13 00:43:24,700 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-13 00:43:24,700 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-13 00:43:24,700 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-13 00:43:24,701 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-13 00:43:24,701 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-13 00:43:24,701 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-13 00:43:24,702 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-13 00:43:24,702 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-13 00:43:24,702 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-13 00:43:24,702 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_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/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_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt
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 -> Automizer
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 -> 139ef67971e7ed714d59975d45ea043b5c6a1676
[2021-10-13 00:43:24,961 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-13 00:43:24,994 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-13 00:43:24,997 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-13 00:43:24,998 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-13 00:43:24,999 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-13 00:43:25,000 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c
[2021-10-13 00:43:25,083 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840/FLAG41acde506
[2021-10-13 00:43:25,641 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-13 00:43:25,642 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c
[2021-10-13 00:43:25,664 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840/FLAG41acde506
[2021-10-13 00:43:25,975 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840
[2021-10-13 00:43:25,977 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-13 00:43:25,979 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-13 00:43:25,983 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-13 00:43:25,983 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-13 00:43:25,987 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-13 00:43:25,988 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:25" (1/1) ...
[2021-10-13 00:43:25,989 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b65aa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:25, skipping insertion in model container
[2021-10-13 00:43:25,992 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:25" (1/1) ...
[2021-10-13 00:43:26,001 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-13 00:43:26,070 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-13 00:43:26,358 WARN  L228   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_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020]
[2021-10-13 00:43:26,364 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-13 00:43:26,373 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-13 00:43:26,437 WARN  L228   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_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020]
[2021-10-13 00:43:26,441 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-13 00:43:26,457 INFO  L208         MainTranslator]: Completed translation
[2021-10-13 00:43:26,458 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26 WrapperNode
[2021-10-13 00:43:26,458 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-13 00:43:26,459 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-13 00:43:26,459 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-13 00:43:26,460 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-13 00:43:26,476 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,496 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,570 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-13 00:43:26,578 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-13 00:43:26,579 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-13 00:43:26,579 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-13 00:43:26,586 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,587 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,591 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,591 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,602 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,611 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,614 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,620 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-13 00:43:26,621 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-13 00:43:26,621 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-13 00:43:26,621 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-13 00:43:26,622 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ...
[2021-10-13 00:43:26,648 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-13 00:43:26,672 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 00:43:26,690 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-13 00:43:26,715 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-13 00:43:26,752 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-13 00:43:26,752 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-13 00:43:26,752 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-13 00:43:26,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-13 00:43:26,917 WARN  L805   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-10-13 00:43:27,684 INFO  L758   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false;
[2021-10-13 00:43:27,685 INFO  L758   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false;
[2021-10-13 00:43:27,701 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-13 00:43:27,701 INFO  L299             CfgBuilder]: Removed 9 assume(true) statements.
[2021-10-13 00:43:27,705 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27 BoogieIcfgContainer
[2021-10-13 00:43:27,706 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-13 00:43:27,710 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-13 00:43:27,711 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-13 00:43:27,715 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-13 00:43:27,716 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:43:25" (1/3) ...
[2021-10-13 00:43:27,717 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc6852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:43:27, skipping insertion in model container
[2021-10-13 00:43:27,717 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (2/3) ...
[2021-10-13 00:43:27,718 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc6852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:43:27, skipping insertion in model container
[2021-10-13 00:43:27,718 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27" (3/3) ...
[2021-10-13 00:43:27,722 INFO  L111   eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_alt.BV.c.cil.c
[2021-10-13 00:43:27,729 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-13 00:43:27,729 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2021-10-13 00:43:27,803 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-13 00:43:27,813 INFO  L339      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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR
[2021-10-13 00:43:27,813 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2021-10-13 00:43:27,841 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 165 states, 152 states have (on average 1.743421052631579) internal successors, (265), 164 states have internal predecessors, (265), 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)
[2021-10-13 00:43:27,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-10-13 00:43:27,866 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:27,867 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:27,867 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:27,873 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:27,874 INFO  L82        PathProgramCache]: Analyzing trace with hash 1872136602, now seen corresponding path program 1 times
[2021-10-13 00:43:27,885 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:27,886 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200668218]
[2021-10-13 00:43:27,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:27,887 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:28,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:28,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:28,139 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:28,140 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200668218]
[2021-10-13 00:43:28,141 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200668218] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:28,141 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:28,141 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-13 00:43:28,144 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747696709]
[2021-10-13 00:43:28,152 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-13 00:43:28,152 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:28,171 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-13 00:43:28,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-13 00:43:28,177 INFO  L87              Difference]: Start difference. First operand  has 165 states, 152 states have (on average 1.743421052631579) internal successors, (265), 164 states have internal predecessors, (265), 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 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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)
[2021-10-13 00:43:28,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:28,242 INFO  L93              Difference]: Finished difference Result 327 states and 526 transitions.
[2021-10-13 00:43:28,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-13 00:43:28,244 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 20
[2021-10-13 00:43:28,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:28,261 INFO  L225             Difference]: With dead ends: 327
[2021-10-13 00:43:28,262 INFO  L226             Difference]: Without dead ends: 153
[2021-10-13 00:43:28,268 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-13 00:43:28,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2021-10-13 00:43:28,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153.
[2021-10-13 00:43:28,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153 states, 141 states have (on average 1.5673758865248226) internal successors, (221), 152 states have internal predecessors, (221), 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)
[2021-10-13 00:43:28,347 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions.
[2021-10-13 00:43:28,348 INFO  L78                 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 20
[2021-10-13 00:43:28,349 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:28,349 INFO  L470      AbstractCegarLoop]: Abstraction has 153 states and 221 transitions.
[2021-10-13 00:43:28,350 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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)
[2021-10-13 00:43:28,351 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions.
[2021-10-13 00:43:28,352 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-10-13 00:43:28,352 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:28,353 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:28,353 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-13 00:43:28,354 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:28,357 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:28,357 INFO  L82        PathProgramCache]: Analyzing trace with hash -122008104, now seen corresponding path program 1 times
[2021-10-13 00:43:28,358 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:28,358 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014406015]
[2021-10-13 00:43:28,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:28,359 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:28,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:28,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:28,475 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:28,476 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014406015]
[2021-10-13 00:43:28,476 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014406015] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:28,476 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:28,476 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:28,477 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237791058]
[2021-10-13 00:43:28,478 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:28,479 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:28,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:28,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:28,480 INFO  L87              Difference]: Start difference. First operand 153 states and 221 transitions. Second operand  has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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)
[2021-10-13 00:43:28,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:28,694 INFO  L93              Difference]: Finished difference Result 314 states and 455 transitions.
[2021-10-13 00:43:28,695 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:28,696 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20
[2021-10-13 00:43:28,696 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:28,700 INFO  L225             Difference]: With dead ends: 314
[2021-10-13 00:43:28,701 INFO  L226             Difference]: Without dead ends: 171
[2021-10-13 00:43:28,705 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:28,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2021-10-13 00:43:28,730 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171.
[2021-10-13 00:43:28,733 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 171 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 170 states have internal predecessors, (246), 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)
[2021-10-13 00:43:28,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions.
[2021-10-13 00:43:28,735 INFO  L78                 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 20
[2021-10-13 00:43:28,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:28,735 INFO  L470      AbstractCegarLoop]: Abstraction has 171 states and 246 transitions.
[2021-10-13 00:43:28,735 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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)
[2021-10-13 00:43:28,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions.
[2021-10-13 00:43:28,737 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-13 00:43:28,739 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:28,739 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:28,739 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-13 00:43:28,740 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:28,743 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:28,745 INFO  L82        PathProgramCache]: Analyzing trace with hash 261327610, now seen corresponding path program 1 times
[2021-10-13 00:43:28,745 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:28,745 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247606306]
[2021-10-13 00:43:28,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:28,748 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:28,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:28,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:28,850 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:28,850 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247606306]
[2021-10-13 00:43:28,851 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247606306] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:28,851 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:28,851 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:28,851 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209746662]
[2021-10-13 00:43:28,852 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:28,852 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:28,852 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:28,853 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:28,853 INFO  L87              Difference]: Start difference. First operand 171 states and 246 transitions. Second operand  has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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)
[2021-10-13 00:43:28,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:28,984 INFO  L93              Difference]: Finished difference Result 342 states and 491 transitions.
[2021-10-13 00:43:28,984 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:28,984 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 21
[2021-10-13 00:43:28,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:28,986 INFO  L225             Difference]: With dead ends: 342
[2021-10-13 00:43:28,986 INFO  L226             Difference]: Without dead ends: 181
[2021-10-13 00:43:28,987 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:28,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 181 states.
[2021-10-13 00:43:28,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172.
[2021-10-13 00:43:28,997 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 160 states have (on average 1.54375) internal successors, (247), 171 states have internal predecessors, (247), 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)
[2021-10-13 00:43:28,998 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions.
[2021-10-13 00:43:28,998 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 21
[2021-10-13 00:43:28,999 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:28,999 INFO  L470      AbstractCegarLoop]: Abstraction has 172 states and 247 transitions.
[2021-10-13 00:43:28,999 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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)
[2021-10-13 00:43:28,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions.
[2021-10-13 00:43:29,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2021-10-13 00:43:29,000 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:29,000 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:29,001 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-13 00:43:29,001 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:29,001 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:29,002 INFO  L82        PathProgramCache]: Analyzing trace with hash -1606953904, now seen corresponding path program 1 times
[2021-10-13 00:43:29,002 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:29,002 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877721941]
[2021-10-13 00:43:29,002 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:29,003 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:29,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:29,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:29,050 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:29,051 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877721941]
[2021-10-13 00:43:29,051 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877721941] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:29,051 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:29,051 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:29,052 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312785442]
[2021-10-13 00:43:29,052 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:29,052 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:29,053 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:29,053 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:29,054 INFO  L87              Difference]: Start difference. First operand 172 states and 247 transitions. Second operand  has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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)
[2021-10-13 00:43:29,193 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:29,193 INFO  L93              Difference]: Finished difference Result 344 states and 493 transitions.
[2021-10-13 00:43:29,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:29,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 22
[2021-10-13 00:43:29,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:29,195 INFO  L225             Difference]: With dead ends: 344
[2021-10-13 00:43:29,195 INFO  L226             Difference]: Without dead ends: 182
[2021-10-13 00:43:29,196 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:29,197 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2021-10-13 00:43:29,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 173.
[2021-10-13 00:43:29,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173 states, 161 states have (on average 1.5403726708074534) internal successors, (248), 172 states have internal predecessors, (248), 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)
[2021-10-13 00:43:29,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 248 transitions.
[2021-10-13 00:43:29,208 INFO  L78                 Accepts]: Start accepts. Automaton has 173 states and 248 transitions. Word has length 22
[2021-10-13 00:43:29,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:29,209 INFO  L470      AbstractCegarLoop]: Abstraction has 173 states and 248 transitions.
[2021-10-13 00:43:29,209 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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)
[2021-10-13 00:43:29,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 173 states and 248 transitions.
[2021-10-13 00:43:29,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-10-13 00:43:29,210 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:29,210 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:29,211 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-13 00:43:29,211 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:29,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:29,212 INFO  L82        PathProgramCache]: Analyzing trace with hash -376706219, now seen corresponding path program 1 times
[2021-10-13 00:43:29,212 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:29,212 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511969370]
[2021-10-13 00:43:29,212 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:29,213 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:29,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:29,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:29,259 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:29,259 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511969370]
[2021-10-13 00:43:29,259 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511969370] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:29,260 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:29,260 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:29,260 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139161757]
[2021-10-13 00:43:29,261 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:29,261 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:29,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:29,262 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:29,262 INFO  L87              Difference]: Start difference. First operand 173 states and 248 transitions. Second operand  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2021-10-13 00:43:29,415 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:29,415 INFO  L93              Difference]: Finished difference Result 346 states and 495 transitions.
[2021-10-13 00:43:29,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:29,416 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23
[2021-10-13 00:43:29,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:29,417 INFO  L225             Difference]: With dead ends: 346
[2021-10-13 00:43:29,417 INFO  L226             Difference]: Without dead ends: 183
[2021-10-13 00:43:29,418 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:29,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2021-10-13 00:43:29,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174.
[2021-10-13 00:43:29,428 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 174 states, 162 states have (on average 1.537037037037037) internal successors, (249), 173 states have internal predecessors, (249), 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)
[2021-10-13 00:43:29,429 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions.
[2021-10-13 00:43:29,429 INFO  L78                 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 23
[2021-10-13 00:43:29,430 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:29,430 INFO  L470      AbstractCegarLoop]: Abstraction has 174 states and 249 transitions.
[2021-10-13 00:43:29,430 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2021-10-13 00:43:29,430 INFO  L276                IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions.
[2021-10-13 00:43:29,431 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-13 00:43:29,432 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:29,432 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:29,432 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-13 00:43:29,432 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:29,433 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:29,433 INFO  L82        PathProgramCache]: Analyzing trace with hash -1876301173, now seen corresponding path program 1 times
[2021-10-13 00:43:29,433 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:29,434 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82189292]
[2021-10-13 00:43:29,434 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:29,434 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:29,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:29,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:29,482 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:29,483 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82189292]
[2021-10-13 00:43:29,483 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82189292] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:29,483 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:29,483 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:29,484 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308246443]
[2021-10-13 00:43:29,484 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:29,484 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:29,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:29,485 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:29,486 INFO  L87              Difference]: Start difference. First operand 174 states and 249 transitions. Second operand  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2021-10-13 00:43:29,637 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:29,638 INFO  L93              Difference]: Finished difference Result 348 states and 497 transitions.
[2021-10-13 00:43:29,638 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:29,638 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24
[2021-10-13 00:43:29,639 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:29,640 INFO  L225             Difference]: With dead ends: 348
[2021-10-13 00:43:29,640 INFO  L226             Difference]: Without dead ends: 184
[2021-10-13 00:43:29,641 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:29,642 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 184 states.
[2021-10-13 00:43:29,651 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175.
[2021-10-13 00:43:29,652 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 175 states, 163 states have (on average 1.5337423312883436) internal successors, (250), 174 states have internal predecessors, (250), 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)
[2021-10-13 00:43:29,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 250 transitions.
[2021-10-13 00:43:29,653 INFO  L78                 Accepts]: Start accepts. Automaton has 175 states and 250 transitions. Word has length 24
[2021-10-13 00:43:29,653 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:29,668 INFO  L470      AbstractCegarLoop]: Abstraction has 175 states and 250 transitions.
[2021-10-13 00:43:29,669 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2021-10-13 00:43:29,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 175 states and 250 transitions.
[2021-10-13 00:43:29,672 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2021-10-13 00:43:29,672 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:29,673 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:29,673 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-13 00:43:29,673 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:29,674 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:29,674 INFO  L82        PathProgramCache]: Analyzing trace with hash 57535363, now seen corresponding path program 1 times
[2021-10-13 00:43:29,674 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:29,680 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215473727]
[2021-10-13 00:43:29,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:29,681 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:29,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:29,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:29,761 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:29,761 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215473727]
[2021-10-13 00:43:29,762 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215473727] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:29,762 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:29,762 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:29,762 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512644344]
[2021-10-13 00:43:29,763 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:29,763 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:29,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:29,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:29,764 INFO  L87              Difference]: Start difference. First operand 175 states and 250 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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)
[2021-10-13 00:43:29,922 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:29,922 INFO  L93              Difference]: Finished difference Result 381 states and 551 transitions.
[2021-10-13 00:43:29,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:29,923 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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) Word has length 35
[2021-10-13 00:43:29,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:29,925 INFO  L225             Difference]: With dead ends: 381
[2021-10-13 00:43:29,925 INFO  L226             Difference]: Without dead ends: 216
[2021-10-13 00:43:29,926 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:29,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2021-10-13 00:43:29,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200.
[2021-10-13 00:43:29,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200 states, 188 states have (on average 1.5425531914893618) internal successors, (290), 199 states have internal predecessors, (290), 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)
[2021-10-13 00:43:29,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 290 transitions.
[2021-10-13 00:43:29,940 INFO  L78                 Accepts]: Start accepts. Automaton has 200 states and 290 transitions. Word has length 35
[2021-10-13 00:43:29,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:29,940 INFO  L470      AbstractCegarLoop]: Abstraction has 200 states and 290 transitions.
[2021-10-13 00:43:29,941 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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)
[2021-10-13 00:43:29,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 200 states and 290 transitions.
[2021-10-13 00:43:29,942 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2021-10-13 00:43:29,942 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:29,942 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:29,943 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-10-13 00:43:29,943 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:29,943 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:29,944 INFO  L82        PathProgramCache]: Analyzing trace with hash -1129130503, now seen corresponding path program 1 times
[2021-10-13 00:43:29,944 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:29,944 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5173550]
[2021-10-13 00:43:29,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:29,945 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:29,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:29,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:29,992 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:29,993 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5173550]
[2021-10-13 00:43:29,993 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5173550] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:29,993 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:29,993 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:29,994 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699633726]
[2021-10-13 00:43:29,994 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:29,994 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:29,995 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:29,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:29,995 INFO  L87              Difference]: Start difference. First operand 200 states and 290 transitions. Second operand  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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)
[2021-10-13 00:43:30,154 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:30,155 INFO  L93              Difference]: Finished difference Result 418 states and 614 transitions.
[2021-10-13 00:43:30,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:30,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) Word has length 36
[2021-10-13 00:43:30,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:30,160 INFO  L225             Difference]: With dead ends: 418
[2021-10-13 00:43:30,160 INFO  L226             Difference]: Without dead ends: 228
[2021-10-13 00:43:30,161 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:30,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 228 states.
[2021-10-13 00:43:30,173 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212.
[2021-10-13 00:43:30,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 212 states, 200 states have (on average 1.565) internal successors, (313), 211 states have internal predecessors, (313), 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)
[2021-10-13 00:43:30,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions.
[2021-10-13 00:43:30,176 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 36
[2021-10-13 00:43:30,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:30,176 INFO  L470      AbstractCegarLoop]: Abstraction has 212 states and 313 transitions.
[2021-10-13 00:43:30,177 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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)
[2021-10-13 00:43:30,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions.
[2021-10-13 00:43:30,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2021-10-13 00:43:30,179 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:30,179 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:30,179 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-10-13 00:43:30,179 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:30,180 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:30,180 INFO  L82        PathProgramCache]: Analyzing trace with hash -1135831245, now seen corresponding path program 1 times
[2021-10-13 00:43:30,180 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:30,181 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404185974]
[2021-10-13 00:43:30,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:30,181 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:30,196 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-13 00:43:30,196 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218790956]
[2021-10-13 00:43:30,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:30,196 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:30,197 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 00:43:30,199 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-13 00:43:30,211 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-13 00:43:30,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:30,304 INFO  L263         TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-13 00:43:30,313 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-13 00:43:30,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:30,591 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:30,591 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404185974]
[2021-10-13 00:43:30,591 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-13 00:43:30,592 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218790956]
[2021-10-13 00:43:30,592 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [218790956] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:30,592 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:30,592 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:30,593 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176346321]
[2021-10-13 00:43:30,593 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:30,593 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:30,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:30,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:30,594 INFO  L87              Difference]: Start difference. First operand 212 states and 313 transitions. Second operand  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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)
[2021-10-13 00:43:30,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:30,822 INFO  L93              Difference]: Finished difference Result 471 states and 704 transitions.
[2021-10-13 00:43:30,822 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:30,823 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) Word has length 46
[2021-10-13 00:43:30,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:30,826 INFO  L225             Difference]: With dead ends: 471
[2021-10-13 00:43:30,827 INFO  L226             Difference]: Without dead ends: 269
[2021-10-13 00:43:30,828 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:30,830 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2021-10-13 00:43:30,863 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 256.
[2021-10-13 00:43:30,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 256 states, 244 states have (on average 1.4918032786885247) internal successors, (364), 255 states have internal predecessors, (364), 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)
[2021-10-13 00:43:30,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions.
[2021-10-13 00:43:30,865 INFO  L78                 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 46
[2021-10-13 00:43:30,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:30,866 INFO  L470      AbstractCegarLoop]: Abstraction has 256 states and 364 transitions.
[2021-10-13 00:43:30,866 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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)
[2021-10-13 00:43:30,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions.
[2021-10-13 00:43:30,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2021-10-13 00:43:30,867 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:30,867 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:30,911 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-13 00:43:31,081 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:31,081 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:31,081 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:31,082 INFO  L82        PathProgramCache]: Analyzing trace with hash 455184635, now seen corresponding path program 1 times
[2021-10-13 00:43:31,082 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:31,082 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708883993]
[2021-10-13 00:43:31,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:31,082 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:31,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:31,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:31,163 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:31,163 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708883993]
[2021-10-13 00:43:31,163 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708883993] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:31,163 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:31,164 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:31,164 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417976916]
[2021-10-13 00:43:31,164 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:31,164 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:31,165 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:31,165 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:31,165 INFO  L87              Difference]: Start difference. First operand 256 states and 364 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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)
[2021-10-13 00:43:31,344 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:31,345 INFO  L93              Difference]: Finished difference Result 323 states and 454 transitions.
[2021-10-13 00:43:31,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:31,345 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48
[2021-10-13 00:43:31,346 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:31,348 INFO  L225             Difference]: With dead ends: 323
[2021-10-13 00:43:31,348 INFO  L226             Difference]: Without dead ends: 304
[2021-10-13 00:43:31,349 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:31,349 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 304 states.
[2021-10-13 00:43:31,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304.
[2021-10-13 00:43:31,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 304 states, 292 states have (on average 1.4863013698630136) internal successors, (434), 303 states have internal predecessors, (434), 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)
[2021-10-13 00:43:31,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 434 transitions.
[2021-10-13 00:43:31,374 INFO  L78                 Accepts]: Start accepts. Automaton has 304 states and 434 transitions. Word has length 48
[2021-10-13 00:43:31,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:31,374 INFO  L470      AbstractCegarLoop]: Abstraction has 304 states and 434 transitions.
[2021-10-13 00:43:31,375 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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)
[2021-10-13 00:43:31,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 304 states and 434 transitions.
[2021-10-13 00:43:31,375 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2021-10-13 00:43:31,376 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:31,376 INFO  L512         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:31,376 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-10-13 00:43:31,377 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:31,377 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:31,377 INFO  L82        PathProgramCache]: Analyzing trace with hash -1725100399, now seen corresponding path program 1 times
[2021-10-13 00:43:31,378 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:31,378 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676920191]
[2021-10-13 00:43:31,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:31,378 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:31,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:31,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:31,459 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:31,460 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676920191]
[2021-10-13 00:43:31,460 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676920191] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:31,460 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:31,460 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 00:43:31,461 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352389231]
[2021-10-13 00:43:31,461 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 00:43:31,461 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:31,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 00:43:31,462 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-13 00:43:31,462 INFO  L87              Difference]: Start difference. First operand 304 states and 434 transitions. Second operand  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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)
[2021-10-13 00:43:31,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:31,623 INFO  L93              Difference]: Finished difference Result 629 states and 891 transitions.
[2021-10-13 00:43:31,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 00:43:31,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49
[2021-10-13 00:43:31,624 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:31,626 INFO  L225             Difference]: With dead ends: 629
[2021-10-13 00:43:31,627 INFO  L226             Difference]: Without dead ends: 322
[2021-10-13 00:43:31,628 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-13 00:43:31,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 322 states.
[2021-10-13 00:43:31,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322.
[2021-10-13 00:43:31,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 322 states, 310 states have (on average 1.467741935483871) internal successors, (455), 321 states have internal predecessors, (455), 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)
[2021-10-13 00:43:31,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 455 transitions.
[2021-10-13 00:43:31,646 INFO  L78                 Accepts]: Start accepts. Automaton has 322 states and 455 transitions. Word has length 49
[2021-10-13 00:43:31,648 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:31,648 INFO  L470      AbstractCegarLoop]: Abstraction has 322 states and 455 transitions.
[2021-10-13 00:43:31,651 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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)
[2021-10-13 00:43:31,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 322 states and 455 transitions.
[2021-10-13 00:43:31,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2021-10-13 00:43:31,653 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:31,654 INFO  L512         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:31,654 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-10-13 00:43:31,657 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:31,658 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:31,658 INFO  L82        PathProgramCache]: Analyzing trace with hash -1041558250, now seen corresponding path program 1 times
[2021-10-13 00:43:31,658 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:31,659 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117149671]
[2021-10-13 00:43:31,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:31,660 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:31,678 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-13 00:43:31,678 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224261914]
[2021-10-13 00:43:31,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:31,678 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:31,681 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 00:43:31,683 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-13 00:43:31,703 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-13 00:43:31,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:31,786 INFO  L263         TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-10-13 00:43:31,789 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-13 00:43:31,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:31,989 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:31,989 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117149671]
[2021-10-13 00:43:31,989 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-13 00:43:31,990 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224261914]
[2021-10-13 00:43:31,990 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224261914] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:31,990 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:31,990 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-13 00:43:31,990 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677040647]
[2021-10-13 00:43:31,991 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-13 00:43:31,991 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:31,991 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-13 00:43:31,991 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:31,992 INFO  L87              Difference]: Start difference. First operand 322 states and 455 transitions. Second operand  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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)
[2021-10-13 00:43:32,173 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:32,173 INFO  L93              Difference]: Finished difference Result 659 states and 935 transitions.
[2021-10-13 00:43:32,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-13 00:43:32,174 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62
[2021-10-13 00:43:32,174 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:32,176 INFO  L225             Difference]: With dead ends: 659
[2021-10-13 00:43:32,176 INFO  L226             Difference]: Without dead ends: 347
[2021-10-13 00:43:32,177 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:32,178 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 347 states.
[2021-10-13 00:43:32,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343.
[2021-10-13 00:43:32,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 343 states, 331 states have (on average 1.4531722054380665) internal successors, (481), 342 states have internal predecessors, (481), 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)
[2021-10-13 00:43:32,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 481 transitions.
[2021-10-13 00:43:32,194 INFO  L78                 Accepts]: Start accepts. Automaton has 343 states and 481 transitions. Word has length 62
[2021-10-13 00:43:32,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:32,194 INFO  L470      AbstractCegarLoop]: Abstraction has 343 states and 481 transitions.
[2021-10-13 00:43:32,195 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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)
[2021-10-13 00:43:32,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 343 states and 481 transitions.
[2021-10-13 00:43:32,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-10-13 00:43:32,196 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:32,196 INFO  L512         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:32,243 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-13 00:43:32,415 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:32,415 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:32,416 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:32,416 INFO  L82        PathProgramCache]: Analyzing trace with hash 436186050, now seen corresponding path program 1 times
[2021-10-13 00:43:32,416 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:32,416 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198851686]
[2021-10-13 00:43:32,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:32,417 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:32,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:32,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 00:43:32,494 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:32,494 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198851686]
[2021-10-13 00:43:32,494 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198851686] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:32,494 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:32,495 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-13 00:43:32,495 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598614445]
[2021-10-13 00:43:32,495 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-13 00:43:32,496 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:32,496 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-13 00:43:32,497 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:32,497 INFO  L87              Difference]: Start difference. First operand 343 states and 481 transitions. Second operand  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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)
[2021-10-13 00:43:32,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:32,532 INFO  L93              Difference]: Finished difference Result 700 states and 978 transitions.
[2021-10-13 00:43:32,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-13 00:43:32,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83
[2021-10-13 00:43:32,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:32,535 INFO  L225             Difference]: With dead ends: 700
[2021-10-13 00:43:32,536 INFO  L226             Difference]: Without dead ends: 367
[2021-10-13 00:43:32,536 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:32,537 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 367 states.
[2021-10-13 00:43:32,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367.
[2021-10-13 00:43:32,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 367 states, 355 states have (on average 1.4366197183098592) internal successors, (510), 366 states have internal predecessors, (510), 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)
[2021-10-13 00:43:32,557 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 510 transitions.
[2021-10-13 00:43:32,557 INFO  L78                 Accepts]: Start accepts. Automaton has 367 states and 510 transitions. Word has length 83
[2021-10-13 00:43:32,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:32,559 INFO  L470      AbstractCegarLoop]: Abstraction has 367 states and 510 transitions.
[2021-10-13 00:43:32,559 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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)
[2021-10-13 00:43:32,559 INFO  L276                IsEmpty]: Start isEmpty. Operand 367 states and 510 transitions.
[2021-10-13 00:43:32,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-10-13 00:43:32,560 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:32,561 INFO  L512         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:32,561 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2021-10-13 00:43:32,561 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:32,562 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:32,562 INFO  L82        PathProgramCache]: Analyzing trace with hash -1809393404, now seen corresponding path program 1 times
[2021-10-13 00:43:32,562 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:32,562 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942246095]
[2021-10-13 00:43:32,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:32,563 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:32,583 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-13 00:43:32,583 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360614430]
[2021-10-13 00:43:32,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:32,583 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:32,584 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 00:43:32,585 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-13 00:43:32,607 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-13 00:43:32,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 00:43:32,717 INFO  L263         TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-10-13 00:43:32,721 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-13 00:43:33,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-10-13 00:43:33,028 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 00:43:33,028 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942246095]
[2021-10-13 00:43:33,028 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-13 00:43:33,029 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360614430]
[2021-10-13 00:43:33,029 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360614430] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 00:43:33,029 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 00:43:33,029 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-13 00:43:33,029 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240895129]
[2021-10-13 00:43:33,030 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-13 00:43:33,030 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 00:43:33,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-13 00:43:33,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:33,031 INFO  L87              Difference]: Start difference. First operand 367 states and 510 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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)
[2021-10-13 00:43:33,090 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 00:43:33,090 INFO  L93              Difference]: Finished difference Result 1047 states and 1463 transitions.
[2021-10-13 00:43:33,091 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-13 00:43:33,091 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 83
[2021-10-13 00:43:33,092 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 00:43:33,098 INFO  L225             Difference]: With dead ends: 1047
[2021-10-13 00:43:33,099 INFO  L226             Difference]: Without dead ends: 690
[2021-10-13 00:43:33,100 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-13 00:43:33,101 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 690 states.
[2021-10-13 00:43:33,134 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 652.
[2021-10-13 00:43:33,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652 states, 640 states have (on average 1.45625) internal successors, (932), 651 states have internal predecessors, (932), 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)
[2021-10-13 00:43:33,139 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 932 transitions.
[2021-10-13 00:43:33,139 INFO  L78                 Accepts]: Start accepts. Automaton has 652 states and 932 transitions. Word has length 83
[2021-10-13 00:43:33,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 00:43:33,141 INFO  L470      AbstractCegarLoop]: Abstraction has 652 states and 932 transitions.
[2021-10-13 00:43:33,141 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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)
[2021-10-13 00:43:33,141 INFO  L276                IsEmpty]: Start isEmpty. Operand 652 states and 932 transitions.
[2021-10-13 00:43:33,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-10-13 00:43:33,150 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 00:43:33,150 INFO  L512         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-13 00:43:33,192 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-13 00:43:33,375 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:33,375 INFO  L402      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2021-10-13 00:43:33,376 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 00:43:33,376 INFO  L82        PathProgramCache]: Analyzing trace with hash -1809395326, now seen corresponding path program 1 times
[2021-10-13 00:43:33,376 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 00:43:33,376 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256263537]
[2021-10-13 00:43:33,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:33,377 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 00:43:33,399 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-13 00:43:33,402 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743701404]
[2021-10-13 00:43:33,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 00:43:33,402 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 00:43:33,402 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 00:43:33,403 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-13 00:43:33,410 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-10-13 00:43:33,573 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-13 00:43:33,573 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-13 00:43:33,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-13 00:43:33,786 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-13 00:43:33,786 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-13 00:43:33,819 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,821 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,822 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,822 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,822 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,822 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,822 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,823 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,823 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,823 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,823 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,823 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-13 00:43:33,869 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-10-13 00:43:34,024 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2021-10-13 00:43:34,030 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-13 00:43:34,155 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:43:34 BoogieIcfgContainer
[2021-10-13 00:43:34,155 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-13 00:43:34,156 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-13 00:43:34,156 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-13 00:43:34,156 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-13 00:43:34,157 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27" (3/4) ...
[2021-10-13 00:43:34,160 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2021-10-13 00:43:34,160 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-13 00:43:34,162 INFO  L168              Benchmark]: Toolchain (without parser) took 8182.23 ms. Allocated memory was 109.1 MB in the beginning and 176.2 MB in the end (delta: 67.1 MB). Free memory was 75.8 MB in the beginning and 143.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 981.9 kB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,162 INFO  L168              Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,163 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 475.56 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 75.8 MB in the beginning and 103.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,163 INFO  L168              Benchmark]: Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 134.2 MB. Free memory was 103.2 MB in the beginning and 100.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,164 INFO  L168              Benchmark]: Boogie Preprocessor took 41.48 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 98.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,164 INFO  L168              Benchmark]: RCFGBuilder took 1085.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.2 MB in the beginning and 105.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,165 INFO  L168              Benchmark]: TraceAbstraction took 6445.00 ms. Allocated memory was 134.2 MB in the beginning and 176.2 MB in the end (delta: 41.9 MB). Free memory was 105.9 MB in the beginning and 143.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,165 INFO  L168              Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 176.2 MB. Free memory is still 143.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-13 00:43:34,168 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 475.56 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 75.8 MB in the beginning and 103.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 134.2 MB. Free memory was 103.2 MB in the beginning and 100.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 41.48 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 98.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1085.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.2 MB in the beginning and 105.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 6445.00 ms. Allocated memory was 134.2 MB in the beginning and 176.2 MB in the end (delta: 41.9 MB). Free memory was 105.9 MB in the beginning and 143.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 16.1 GB.
 * Witness Printer took 4.76 ms. Allocated memory is still 176.2 MB. Free memory is still 143.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: overapproximation of bitwiseAnd at line 93. 
Possible FailurePath: 
[L692]              int s ;
[L693]              int tmp ;
[L697]              s = 8464
[L17]               int s__info_callback  = __VERIFIER_nondet_int();
[L18]               unsigned int s__in_handshake  = __VERIFIER_nondet_uint();
[L19]               int s__state ;
[L20]               int s__new_session ;
[L21]               int s__server ;
[L22]               int s__version  = __VERIFIER_nondet_int();
[L23]               int s__type ;
[L24]               int s__init_num ;
[L25]               int s__hit  = __VERIFIER_nondet_int();
[L26]               int s__rwstate ;
[L27]               int s__init_buf___0 ;
[L28]               int s__debug  = __VERIFIER_nondet_int();
[L29]               int s__shutdown ;
[L30]               int s__cert  = __VERIFIER_nondet_int();
[L31]               int s__options  = __VERIFIER_nondet_int();
[L32]               int s__verify_mode  = __VERIFIER_nondet_int();
[L33]               int s__session__peer  = __VERIFIER_nondet_int();
[L34]               int s__cert__pkeys__AT0__privatekey  = __VERIFIER_nondet_int();
[L35]               int s__ctx__info_callback  = __VERIFIER_nondet_int();
[L36]               int s__ctx__stats__sess_accept_renegotiate ;
[L37]               int s__ctx__stats__sess_accept ;
[L38]               int s__ctx__stats__sess_accept_good  = __VERIFIER_nondet_int();
[L39]               int s__s3__tmp__cert_request ;
[L40]               int s__s3__tmp__reuse_message  = __VERIFIER_nondet_int();
[L41]               int s__s3__tmp__use_rsa_tmp ;
[L42]               int s__s3__tmp__new_cipher  = __VERIFIER_nondet_int();
[L43]               int s__s3__tmp__new_cipher__algorithms  = __VERIFIER_nondet_int();
[L44]               int s__s3__tmp__next_state___0 ;
[L45]               int s__s3__tmp__new_cipher__algo_strength  = __VERIFIER_nondet_int();
[L46]               int s__session__cipher ;
[L47]               int buf  = __VERIFIER_nondet_int();
[L48]               unsigned long l ;
[L49]               unsigned long Time ;
[L50]               unsigned long tmp  = __VERIFIER_nondet_ulong();
[L51]               int cb ;
[L52]               long num1 ;
[L53]               int ret ;
[L54]               int new_state ;
[L55]               int state ;
[L56]               int skip ;
[L57]               int got_new_session ;
[L58]               int tmp___1  = __VERIFIER_nondet_int();
[L59]               int tmp___2  = __VERIFIER_nondet_int();
[L60]               int tmp___3 ;
[L61]               int tmp___4 ;
[L62]               int tmp___5 ;
[L63]               int tmp___6 ;
[L64]               int tmp___7 ;
[L65]               long tmp___8  = __VERIFIER_nondet_long();
[L66]               int tmp___9 ;
[L67]               int tmp___10 ;
[L68]               int blastFlag ;
[L69]               int ag_X ;
[L70]               int ag_Y  = __VERIFIER_nondet_int();
[L71]               int ag_Z ;
[L72]               int __retres70 ;
[L3]    COND FALSE  !(!cond)
[L76]               s__state = initial_state
[L77]               blastFlag = 0
[L78]               Time = tmp
[L79]               cb = 0
[L80]               ret = -1
[L81]               skip = 0
[L82]               got_new_session = 0
[L83]   COND TRUE   s__info_callback != 0
[L84]               cb = s__info_callback
[L92]               s__in_handshake = s__in_handshake + 1
[L93]   COND FALSE  !(tmp___1 & 12288)
[L102]  COND FALSE  !(s__cert == 0)
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 8192)
[L121]  COND FALSE  !(s__state == 24576)
[L124]  COND FALSE  !(s__state == 8195)
[L127]  COND FALSE  !(s__state == 8480)
[L130]  COND FALSE  !(s__state == 8481)
[L133]  COND FALSE  !(s__state == 8482)
[L136]  COND TRUE   s__state == 8464
[L294]              s__shutdown = 0
[L295]              ret = __VERIFIER_nondet_int()
[L296]  COND TRUE   blastFlag == 0
[L297]              blastFlag = 1
[L301]  COND FALSE  !(ret <= 0)
[L306]              got_new_session = 1
[L307]              s__state = 8496
[L308]              s__init_num = 0
[L641]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L670]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 8192)
[L121]  COND FALSE  !(s__state == 24576)
[L124]  COND FALSE  !(s__state == 8195)
[L127]  COND FALSE  !(s__state == 8480)
[L130]  COND FALSE  !(s__state == 8481)
[L133]  COND FALSE  !(s__state == 8482)
[L136]  COND FALSE  !(s__state == 8464)
[L139]  COND FALSE  !(s__state == 8465)
[L142]  COND FALSE  !(s__state == 8466)
[L145]  COND TRUE   s__state == 8496
[L312]              ret = __VERIFIER_nondet_int()
[L313]  COND TRUE   blastFlag == 1
[L314]              blastFlag = 2
[L318]  COND FALSE  !(ret <= 0)
[L323]  COND TRUE   \read(s__hit)
[L324]              s__state = 8656
[L328]              s__init_num = 0
[L641]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L670]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 8192)
[L121]  COND FALSE  !(s__state == 24576)
[L124]  COND FALSE  !(s__state == 8195)
[L127]  COND FALSE  !(s__state == 8480)
[L130]  COND FALSE  !(s__state == 8481)
[L133]  COND FALSE  !(s__state == 8482)
[L136]  COND FALSE  !(s__state == 8464)
[L139]  COND FALSE  !(s__state == 8465)
[L142]  COND FALSE  !(s__state == 8466)
[L145]  COND FALSE  !(s__state == 8496)
[L148]  COND FALSE  !(s__state == 8497)
[L151]  COND FALSE  !(s__state == 8512)
[L154]  COND FALSE  !(s__state == 8513)
[L157]  COND FALSE  !(s__state == 8528)
[L160]  COND FALSE  !(s__state == 8529)
[L163]  COND FALSE  !(s__state == 8544)
[L166]  COND FALSE  !(s__state == 8545)
[L169]  COND FALSE  !(s__state == 8560)
[L172]  COND FALSE  !(s__state == 8561)
[L175]  COND FALSE  !(s__state == 8448)
[L178]  COND FALSE  !(s__state == 8576)
[L181]  COND FALSE  !(s__state == 8577)
[L184]  COND FALSE  !(s__state == 8592)
[L187]  COND FALSE  !(s__state == 8593)
[L190]  COND FALSE  !(s__state == 8608)
[L193]  COND FALSE  !(s__state == 8609)
[L196]  COND FALSE  !(s__state == 8640)
[L199]  COND FALSE  !(s__state == 8641)
[L202]  COND TRUE   s__state == 8656
[L529]              s__session__cipher = s__s3__tmp__new_cipher
[L530]              tmp___9 = __VERIFIER_nondet_int()
[L531]  COND FALSE  !(! tmp___9)
[L537]              ret = __VERIFIER_nondet_int()
[L538]  COND TRUE   blastFlag == 2
[L539]              blastFlag = 3
[L543]  COND FALSE  !(ret <= 0)
[L548]              ag_X * ag_Y

  - UnprovableResult [Line: 269]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 269]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 271]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 271]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 370]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 370]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 588]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 588]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 165 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 6227.8ms, OverallIterations: 15, TraceHistogramMax: 3, EmptinessCheckTime: 60.7ms, AutomataDifference: 2144.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2514 SDtfs, 4359 SDslu, 880 SDs, 0 SdLazy, 1073 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1170.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=652occurred in iteration=14, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 320.3ms AutomataMinimizationTime, 14 MinimizatonAttempts, 123 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.9ms SsaConstructionTime, 358.9ms SatisfiabilityAnalysisTime, 1358.2ms InterpolantComputationTime, 655 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 1319 SizeOfPredicates, 3 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 90/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-10-13 00:43:34,230 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...