./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC --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 80b527022d9b36e61193ad6d068e68d29260bb67
.................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)
--- Real Ultimate output ---
This is Ultimate 0.2.0-7b2dab5
[2021-10-11 00:27:29,973 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:27:29,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:27:30,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:27:30,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:27:30,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:27:30,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:27:30,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:27:30,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:27:30,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:27:30,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:27:30,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:27:30,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:27:30,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:27:30,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:27:30,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:27:30,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:27:30,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:27:30,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:27:30,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:27:30,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:27:30,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:27:30,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:27:30,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:27:30,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:27:30,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:27:30,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:27:30,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:27:30,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:27:30,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:27:30,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:27:30,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:27:30,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:27:30,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:27:30,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:27:30,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:27:30,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:27:30,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:27:30,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:27:30,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:27:30,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:27:30,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2021-10-11 00:27:30,150 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-11 00:27:30,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:27:30,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:27:30,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-11 00:27:30,152 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-11 00:27:30,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:27:30,153 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-11 00:27:30,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-11 00:27:30,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-11 00:27:30,154 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-11 00:27:30,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-11 00:27:30,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:27:30,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:27:30,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:27:30,155 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2021-10-11 00:27:30,155 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-11 00:27:30,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-11 00:27:30,156 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-11 00:27:30,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:27:30,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:27:30,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-11 00:27:30,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-11 00:27:30,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:27:30,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:27:30,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:27:30,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:27:30,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-11 00:27:30,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:27:30,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:27:30,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-11 00:27:30,159 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_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80b527022d9b36e61193ad6d068e68d29260bb67
[2021-10-11 00:27:30,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:27:30,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:27:30,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:27:30,476 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-11 00:27:30,480 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-11 00:27:30,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i
[2021-10-11 00:27:30,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/data/30ac71c92/03463a0572544b93b892e310f214e4e4/FLAG2f6af7a20
[2021-10-11 00:27:31,197 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-11 00:27:31,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/sv-benchmarks/c/loop-zilu/benchmark07_linear.i
[2021-10-11 00:27:31,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/data/30ac71c92/03463a0572544b93b892e310f214e4e4/FLAG2f6af7a20
[2021-10-11 00:27:31,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/data/30ac71c92/03463a0572544b93b892e310f214e4e4
[2021-10-11 00:27:31,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:27:31,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:27:31,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:27:31,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:27:31,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:27:31,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137efd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31, skipping insertion in model container
[2021-10-11 00:27:31,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-11 00:27:31,579 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:27:31,797 WARN L226 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_e7e9445d-d7a0-42f7-acc0-430739ad2b66/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881]
[2021-10-11 00:27:31,821 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:27:31,832 INFO L203 MainTranslator]: Completed pre-run
[2021-10-11 00:27:31,847 WARN L226 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_e7e9445d-d7a0-42f7-acc0-430739ad2b66/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881]
[2021-10-11 00:27:31,852 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:27:31,869 INFO L208 MainTranslator]: Completed translation
[2021-10-11 00:27:31,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31 WrapperNode
[2021-10-11 00:27:31,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:27:31,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:27:31,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:27:31,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:27:31,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:27:31,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:27:31,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:27:31,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:27:31,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
[2021-10-11 00:27:31,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:27:31,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:27:31,971 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:27:31,971 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:27:31,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:27:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:27:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:27:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:27:32,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:27:32,484 INFO L299 CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-11 00:27:32,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:32 BoogieIcfgContainer
[2021-10-11 00:27:32,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:27:32,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:27:32,488 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:27:32,508 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:27:32,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:31" (1/3) ...
[2021-10-11 00:27:32,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652d33d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:32, skipping insertion in model container
[2021-10-11 00:27:32,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:31" (2/3) ...
[2021-10-11 00:27:32,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652d33d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:32, skipping insertion in model container
[2021-10-11 00:27:32,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:32" (3/3) ...
[2021-10-11 00:27:32,512 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark07_linear.i
[2021-10-11 00:27:32,544 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:27:32,548 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations.
[2021-10-11 00:27:32,560 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2021-10-11 00:27:32,586 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:27:32,586 INFO L378 AbstractCegarLoop]: Hoare is true
[2021-10-11 00:27:32,586 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:27:32,586 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:27:32,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:27:32,587 INFO L382 AbstractCegarLoop]: Difference is false
[2021-10-11 00:27:32,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:27:32,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:27:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states.
[2021-10-11 00:27:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2021-10-11 00:27:32,607 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:32,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2021-10-11 00:27:32,609 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2021-10-11 00:27:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:32,615 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times
[2021-10-11 00:27:32,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:32,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742942774]
[2021-10-11 00:27:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:27:32,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742942774]
[2021-10-11 00:27:32,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:27:32,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-11 00:27:32,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934100486]
[2021-10-11 00:27:32,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-10-11 00:27:32,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-11 00:27:32,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-11 00:27:32,855 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states.
[2021-10-11 00:27:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:32,950 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions.
[2021-10-11 00:27:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-11 00:27:32,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5
[2021-10-11 00:27:32,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:32,963 INFO L225 Difference]: With dead ends: 40
[2021-10-11 00:27:32,963 INFO L226 Difference]: Without dead ends: 20
[2021-10-11 00:27:32,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:27:32,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-10-11 00:27:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2021-10-11 00:27:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2021-10-11 00:27:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2021-10-11 00:27:33,007 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5
[2021-10-11 00:27:33,007 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:33,007 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2021-10-11 00:27:33,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2021-10-11 00:27:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2021-10-11 00:27:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-11 00:27:33,009 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:33,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:33,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:27:33,010 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2021-10-11 00:27:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:33,011 INFO L82 PathProgramCache]: Analyzing trace with hash 183289487, now seen corresponding path program 1 times
[2021-10-11 00:27:33,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:33,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446575971]
[2021-10-11 00:27:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:27:33,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:27:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:27:33,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:27:33,087 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:27:33,087 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-10-11 00:27:33,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:27:33,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:33 BoogieIcfgContainer
[2021-10-11 00:27:33,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:27:33,114 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:27:33,114 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:27:33,114 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-11 00:27:33,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:32" (3/4) ...
[2021-10-11 00:27:33,117 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-11 00:27:33,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e9445d-d7a0-42f7-acc0-430739ad2b66/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:27:33,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:27:33,163 INFO L168 Benchmark]: Toolchain (without parser) took 1617.50 ms. Allocated memory is still 107.0 MB. Free memory was 73.4 MB in the beginning and 41.4 MB in the end (delta: 32.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,164 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.80 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 83.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 107.0 MB. Free memory was 83.8 MB in the beginning and 82.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,167 INFO L168 Benchmark]: Boogie Preprocessor took 48.71 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,168 INFO L168 Benchmark]: RCFGBuilder took 516.94 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 68.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,169 INFO L168 Benchmark]: TraceAbstraction took 625.09 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 43.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,170 INFO L168 Benchmark]: Witness Printer took 47.26 ms. Allocated memory is still 107.0 MB. Free memory was 43.0 MB in the beginning and 41.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:27:33,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 323.80 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 83.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 107.0 MB. Free memory was 83.8 MB in the beginning and 82.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 48.71 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 516.94 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 68.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 625.09 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 43.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB.
* Witness Printer took 47.26 ms. Allocated memory is still 107.0 MB. Free memory was 43.0 MB in the beginning and 41.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 28]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L20] int i = __VERIFIER_nondet_int();
[L21] int n = __VERIFIER_nondet_int();
[L22] int k = __VERIFIER_nondet_int();
[L23] _Bool flag = __VERIFIER_nondet_bool();
[L24] i=0
[L25] COND FALSE !(!(n>0 && n<10))
[L26] COND TRUE i<n
[L27] i++
[L28] COND TRUE \read(flag)
[L28] k+=4000
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 23 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 37 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect!
Received shutdown request...