./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer --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 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:34,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:34,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:34,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:34,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:34,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:34,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:34,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:34,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:34,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:34,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:34,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:34,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:34,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:34,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:34,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:34,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:34,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:34,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:34,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:34,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:34,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:34,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:34,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:34,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:34,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:34,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:34,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:34,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:34,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:34,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:34,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:34,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:34,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:34,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:34,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:34,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:34,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:34,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:34,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:34,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:34,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:21:34,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:34,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:34,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:34,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:34,865 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:34,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:34,865 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:21:34,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:34,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:34,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:21:34,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:21:34,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:34,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:34,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:34,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:34,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:34,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:34,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:34,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:34,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:34,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:34,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:34,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:34,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:34,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:34,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:34,870 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-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc [2020-11-28 03:21:35,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:35,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:35,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:35,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:35,128 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:35,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/../../sv-benchmarks/c/bitvector/gcd_1.c [2020-11-28 03:21:35,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/data/4dc86335b/97e6906788594c6b8deda4d4170eaf1a/FLAGbef81b99d [2020-11-28 03:21:35,780 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:35,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/sv-benchmarks/c/bitvector/gcd_1.c [2020-11-28 03:21:35,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/data/4dc86335b/97e6906788594c6b8deda4d4170eaf1a/FLAGbef81b99d [2020-11-28 03:21:36,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/data/4dc86335b/97e6906788594c6b8deda4d4170eaf1a [2020-11-28 03:21:36,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:36,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:36,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:36,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:36,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:36,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552e33ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36, skipping insertion in model container [2020-11-28 03:21:36,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:36,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:36,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:36,396 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:36,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:36,426 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:36,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36 WrapperNode [2020-11-28 03:21:36,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:36,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:36,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:36,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:36,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:36,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:36,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:36,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:36,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... [2020-11-28 03:21:36,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:36,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:36,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:36,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:36,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/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 [2020-11-28 03:21:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:21:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:21:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:37,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:37,078 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-28 03:21:37,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37 BoogieIcfgContainer [2020-11-28 03:21:37,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:37,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:37,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:37,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:37,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:36" (1/3) ... [2020-11-28 03:21:37,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae019ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:36" (2/3) ... [2020-11-28 03:21:37,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae019ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37" (3/3) ... [2020-11-28 03:21:37,090 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1.c [2020-11-28 03:21:37,100 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:37,105 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:21:37,116 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:21:37,152 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:37,152 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:37,153 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:37,153 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:37,153 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:37,153 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:37,153 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:37,153 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 03:21:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:21:37,174 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:37,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:37,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:37,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:37,182 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-11-28 03:21:37,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:37,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657385384] [2020-11-28 03:21:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:37,302 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:37,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388920991] [2020-11-28 03:21:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:37,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:21:37,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:37,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657385384] [2020-11-28 03:21:37,499 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:37,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388920991] [2020-11-28 03:21:37,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:37,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:37,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739237071] [2020-11-28 03:21:37,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:37,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:37,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:37,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:37,526 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-11-28 03:21:37,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:37,616 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-28 03:21:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:21:37,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 03:21:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:37,626 INFO L225 Difference]: With dead ends: 40 [2020-11-28 03:21:37,626 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:21:37,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:21:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 03:21:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 03:21:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 03:21:37,657 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2020-11-28 03:21:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:37,657 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 03:21:37,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:37,658 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 03:21:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:21:37,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:37,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:21:37,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 03:21:37,884 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:37,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:37,885 INFO L82 PathProgramCache]: Analyzing trace with hash 889507687, now seen corresponding path program 1 times [2020-11-28 03:21:37,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:37,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510217432] [2020-11-28 03:21:37,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:37,901 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:37,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754243366] [2020-11-28 03:21:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:37,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:21:37,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:37,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510217432] [2020-11-28 03:21:37,972 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:37,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754243366] [2020-11-28 03:21:37,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:37,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:37,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645789389] [2020-11-28 03:21:37,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:37,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:37,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:37,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:37,975 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-11-28 03:21:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:37,989 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-28 03:21:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:37,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:21:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:37,992 INFO L225 Difference]: With dead ends: 12 [2020-11-28 03:21:37,992 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 03:21:37,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 03:21:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 03:21:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:21:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 03:21:37,996 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2020-11-28 03:21:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:37,996 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-28 03:21:37,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 03:21:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:21:38,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:38,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:21:38,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:38,207 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,208 INFO L82 PathProgramCache]: Analyzing trace with hash 889513709, now seen corresponding path program 1 times [2020-11-28 03:21:38,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053290866] [2020-11-28 03:21:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:38,220 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:38,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754432990] [2020-11-28 03:21:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:38,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:21:38,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:38,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053290866] [2020-11-28 03:21:38,272 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:38,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754432990] [2020-11-28 03:21:38,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:38,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:38,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656839912] [2020-11-28 03:21:38,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:38,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:38,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:38,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:38,274 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2020-11-28 03:21:38,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:38,278 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-28 03:21:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:38,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:21:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:38,279 INFO L225 Difference]: With dead ends: 11 [2020-11-28 03:21:38,279 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:38,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:38,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-28 03:21:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:38,281 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:38,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:38,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:38,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:38,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:38,517 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 03:21:38,517 INFO L274 CegarLoopResult]: For program point L19-1(lines 13 25) no Hoare annotation was computed. [2020-11-28 03:21:38,517 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2020-11-28 03:21:38,517 INFO L270 CegarLoopResult]: At program point L40(lines 28 41) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-28 03:21:38,517 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L270 CegarLoopResult]: At program point L24(lines 12 25) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-11-28 03:21:38,518 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point L16-4(lines 13 25) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L274 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-11-28 03:21:38,519 INFO L270 CegarLoopResult]: At program point L34-1(lines 34 38) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-28 03:21:38,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 03:21:38,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:38 BoogieIcfgContainer [2020-11-28 03:21:38,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:38,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:38,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:38,540 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:38,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37" (3/4) ... [2020-11-28 03:21:38,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:38,552 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 03:21:38,552 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:21:38,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:38,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:38,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6b966b47-9586-4438-b6b2-be50597c7eb6/bin/uautomizer/witness.graphml [2020-11-28 03:21:38,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:38,592 INFO L168 Benchmark]: Toolchain (without parser) took 2461.02 ms. Allocated memory is still 134.2 MB. Free memory was 109.7 MB in the beginning and 90.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,593 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:38,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.33 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 111.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.27 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 110.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,594 INFO L168 Benchmark]: Boogie Preprocessor took 20.12 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 109.1 MB in the end (delta: 975.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:38,595 INFO L168 Benchmark]: RCFGBuilder took 599.26 ms. Allocated memory is still 134.2 MB. Free memory was 109.1 MB in the beginning and 95.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,596 INFO L168 Benchmark]: TraceAbstraction took 1455.86 ms. Allocated memory is still 134.2 MB. Free memory was 95.1 MB in the beginning and 93.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,596 INFO L168 Benchmark]: Witness Printer took 51.64 ms. Allocated memory is still 134.2 MB. Free memory was 93.0 MB in the beginning and 90.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:38,599 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 94.4 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.33 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 111.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.27 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 110.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.12 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 109.1 MB in the end (delta: 975.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 599.26 ms. Allocated memory is still 134.2 MB. Free memory was 109.1 MB in the beginning and 95.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1455.86 ms. Allocated memory is still 134.2 MB. Free memory was 95.1 MB in the beginning and 93.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * Witness Printer took 51.64 ms. Allocated memory is still 134.2 MB. Free memory was 93.0 MB in the beginning and 90.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 <= x + 128 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 <= x + 128 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 <= x + 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 46 SDslu, 18 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 4 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...