./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_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/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 [2020-11-29 20:08:03,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:08:03,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:08:03,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:08:03,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:08:03,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:08:03,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:08:03,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:08:03,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:08:03,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:08:03,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:08:03,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:08:03,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:08:03,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:08:03,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:08:03,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:08:03,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:08:03,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:08:03,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:08:03,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:08:03,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:08:03,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:08:03,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:08:03,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:08:03,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:08:03,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:08:03,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:08:03,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:08:03,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:08:03,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:08:03,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:08:03,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:08:03,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:08:03,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:08:03,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:08:03,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:08:03,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:08:03,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:08:03,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:08:03,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:08:03,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:08:03,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-29 20:08:03,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:08:03,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:08:03,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:08:03,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:08:03,376 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:08:03,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:08:03,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:08:03,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:08:03,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:08:03,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:08:03,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:08:03,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:08:03,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:08:03,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:08:03,380 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 20:08:03,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:08:03,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:08:03,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:08:03,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:08:03,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:08:03,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:08:03,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:08:03,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:08:03,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:08:03,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:08:03,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:08:03,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:08:03,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:08:03,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:08:03,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:08:03,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:08:03,386 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_57eab168-e381-4018-9808-19797478137f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc [2020-11-29 20:08:03,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:08:03,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:08:03,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:08:03,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:08:03,773 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:08:03,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/../../sv-benchmarks/c/bitvector/gcd_1.c [2020-11-29 20:08:03,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/data/ac11decd3/145a5c642bd64d01898fb66f53b9c0dc/FLAGdeb265ae8 [2020-11-29 20:08:04,366 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:08:04,367 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/sv-benchmarks/c/bitvector/gcd_1.c [2020-11-29 20:08:04,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/data/ac11decd3/145a5c642bd64d01898fb66f53b9c0dc/FLAGdeb265ae8 [2020-11-29 20:08:04,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/data/ac11decd3/145a5c642bd64d01898fb66f53b9c0dc [2020-11-29 20:08:04,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:08:04,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:08:04,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:04,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:08:04,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:08:04,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:04" (1/1) ... [2020-11-29 20:08:04,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488784f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:04, skipping insertion in model container [2020-11-29 20:08:04,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:04" (1/1) ... [2020-11-29 20:08:04,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:08:04,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:08:04,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:04,992 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:08:05,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:05,050 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:08:05,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05 WrapperNode [2020-11-29 20:08:05,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:05,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:05,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:08:05,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:08:05,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:05,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:08:05,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:08:05,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:08:05,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... [2020-11-29 20:08:05,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:08:05,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:08:05,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:08:05,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:08:05,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/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 [2020-11-29 20:08:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:08:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:08:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:08:05,557 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:08:05,557 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-29 20:08:05,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:05 BoogieIcfgContainer [2020-11-29 20:08:05,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:08:05,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:08:05,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:08:05,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:08:05,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:08:04" (1/3) ... [2020-11-29 20:08:05,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c619ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:08:05, skipping insertion in model container [2020-11-29 20:08:05,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:05" (2/3) ... [2020-11-29 20:08:05,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c619ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:08:05, skipping insertion in model container [2020-11-29 20:08:05,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:05" (3/3) ... [2020-11-29 20:08:05,589 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1.c [2020-11-29 20:08:05,615 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:08:05,620 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 20:08:05,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 20:08:05,713 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:08:05,713 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:08:05,713 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:08:05,714 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:08:05,714 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:08:05,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:08:05,714 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:08:05,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:08:05,732 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-29 20:08:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:08:05,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:08:05,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 20:08:05,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:08:05,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-11-29 20:08:05,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:05,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456037548] [2020-11-29 20:08:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:05,872 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 20:08:05,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385003605] [2020-11-29 20:08:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/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 [2020-11-29 20:08:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:08:05,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:08:05,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:08:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:08:06,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456037548] [2020-11-29 20:08:06,087 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 20:08:06,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385003605] [2020-11-29 20:08:06,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:08:06,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:08:06,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630591704] [2020-11-29 20:08:06,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:08:06,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:08:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:08:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:08:06,114 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-11-29 20:08:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:08:06,211 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-29 20:08:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:08:06,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-29 20:08:06,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:08:06,222 INFO L225 Difference]: With dead ends: 40 [2020-11-29 20:08:06,223 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 20:08:06,226 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 [2020-11-29 20:08:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 20:08:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 20:08:06,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 20:08:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-29 20:08:06,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2020-11-29 20:08:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:08:06,268 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-29 20:08:06,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:08:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-29 20:08:06,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:08:06,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:08:06,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:08:06,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-29 20:08:06,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:08:06,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:06,475 INFO L82 PathProgramCache]: Analyzing trace with hash 889507687, now seen corresponding path program 1 times [2020-11-29 20:08:06,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:06,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715858070] [2020-11-29 20:08:06,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:06,498 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 20:08:06,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167291695] [2020-11-29 20:08:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/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 [2020-11-29 20:08:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:08:06,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:08:06,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:08:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:08:06,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715858070] [2020-11-29 20:08:06,568 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 20:08:06,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167291695] [2020-11-29 20:08:06,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:08:06,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:08:06,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425350668] [2020-11-29 20:08:06,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:08:06,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:08:06,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:08:06,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:08:06,572 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-11-29 20:08:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:08:06,606 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-29 20:08:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:08:06,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:08:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:08:06,609 INFO L225 Difference]: With dead ends: 12 [2020-11-29 20:08:06,609 INFO L226 Difference]: Without dead ends: 11 [2020-11-29 20:08:06,610 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 [2020-11-29 20:08:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-29 20:08:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 20:08:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 20:08:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-29 20:08:06,613 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2020-11-29 20:08:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:08:06,613 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-29 20:08:06,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:08:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-29 20:08:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:08:06,614 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:08:06,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:08:06,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:08:06,833 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:08:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:06,834 INFO L82 PathProgramCache]: Analyzing trace with hash 889513709, now seen corresponding path program 1 times [2020-11-29 20:08:06,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:06,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446954532] [2020-11-29 20:08:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:06,849 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 20:08:06,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36864434] [2020-11-29 20:08:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/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 [2020-11-29 20:08:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:08:06,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:08:06,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:08:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:08:06,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446954532] [2020-11-29 20:08:06,922 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 20:08:06,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36864434] [2020-11-29 20:08:06,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:08:06,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:08:06,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014450955] [2020-11-29 20:08:06,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:08:06,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:08:06,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:08:06,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:08:06,925 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2020-11-29 20:08:06,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:08:06,928 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-29 20:08:06,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:08:06,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:08:06,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:08:06,929 INFO L225 Difference]: With dead ends: 11 [2020-11-29 20:08:06,929 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:08:06,930 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 [2020-11-29 20:08:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:08:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:08:06,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:08:06,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:08:06,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-29 20:08:06,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:08:06,931 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:08:06,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:08:06,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:08:06,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:08:07,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:08:07,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:08:07,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-29 20:08:07,171 INFO L274 CegarLoopResult]: For program point L19-1(lines 13 25) no Hoare annotation was computed. [2020-11-29 20:08:07,171 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2020-11-29 20:08:07,171 INFO L270 CegarLoopResult]: At program point L40(lines 28 41) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-29 20:08:07,171 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-29 20:08:07,171 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 20:08:07,172 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:08:07,172 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-11-29 20:08:07,172 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:08:07,172 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:08:07,172 INFO L270 CegarLoopResult]: At program point L24(lines 12 25) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-29 20:08:07,172 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point L16-4(lines 13 25) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:08:07,173 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-29 20:08:07,174 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-29 20:08:07,174 INFO L274 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-11-29 20:08:07,174 INFO L270 CegarLoopResult]: At program point L34-1(lines 34 38) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-11-29 20:08:07,174 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-29 20:08:07,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:08:07 BoogieIcfgContainer [2020-11-29 20:08:07,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:08:07,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:08:07,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:08:07,193 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:08:07,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:05" (3/4) ... [2020-11-29 20:08:07,197 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:08:07,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 20:08:07,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 20:08:07,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:08:07,210 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:08:07,258 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_57eab168-e381-4018-9808-19797478137f/bin/uautomizer/witness.graphml [2020-11-29 20:08:07,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:08:07,260 INFO L168 Benchmark]: Toolchain (without parser) took 2546.59 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 42.8 MB in the beginning and 45.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,261 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 48.7 MB in the beginning and 48.7 MB in the end (delta: 22.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:07,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.89 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 42.7 MB in the beginning and 70.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,263 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 67.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:07,264 INFO L168 Benchmark]: RCFGBuilder took 435.05 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 54.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,264 INFO L168 Benchmark]: TraceAbstraction took 1614.69 ms. Allocated memory is still 92.3 MB. Free memory was 54.4 MB in the beginning and 48.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,265 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 92.3 MB. Free memory was 48.5 MB in the beginning and 45.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:07,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 48.7 MB in the beginning and 48.7 MB in the end (delta: 22.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.89 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 42.7 MB in the beginning and 70.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.83 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 67.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 435.05 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 54.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1614.69 ms. Allocated memory is still 92.3 MB. Free memory was 54.4 MB in the beginning and 48.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Witness Printer took 66.00 ms. Allocated memory is still 92.3 MB. Free memory was 48.5 MB in the beginning and 45.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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: 1.4s, 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...