./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 05:21:00,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:21:00,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:21:00,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:21:00,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:21:00,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:21:00,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:21:00,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:21:00,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:21:00,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:21:00,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:21:00,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:21:00,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:21:00,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:21:00,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:21:00,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:21:00,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:21:00,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:21:00,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:21:00,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:21:00,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:21:00,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:21:00,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:21:00,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:21:00,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:21:00,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:21:00,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:21:00,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:21:00,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:21:00,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:21:00,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:21:00,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:21:00,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:21:00,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:21:00,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:21:00,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:21:00,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:21:00,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:21:00,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:21:00,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:21:00,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:21:00,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 05:21:00,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:21:00,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:21:00,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:21:00,449 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:21:00,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:21:00,449 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:21:00,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:21:00,450 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:21:00,451 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:21:00,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:21:00,451 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:21:00,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 05:21:00,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:21:00,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:21:00,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:21:00,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:21:00,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:21:00,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:21:00,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:21:00,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:21:00,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:21:00,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc [2020-12-09 05:21:00,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:21:00,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:21:00,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:21:00,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:21:00,659 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:21:00,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/../../sv-benchmarks/c/bitvector/gcd_1.c [2020-12-09 05:21:00,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/data/d3b2898be/4a67e1d68c83414f8ecc78e768274d1d/FLAG55efdb7d0 [2020-12-09 05:21:01,061 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:21:01,061 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/sv-benchmarks/c/bitvector/gcd_1.c [2020-12-09 05:21:01,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/data/d3b2898be/4a67e1d68c83414f8ecc78e768274d1d/FLAG55efdb7d0 [2020-12-09 05:21:01,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/data/d3b2898be/4a67e1d68c83414f8ecc78e768274d1d [2020-12-09 05:21:01,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:21:01,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:21:01,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:21:01,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:21:01,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:21:01,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fc8214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01, skipping insertion in model container [2020-12-09 05:21:01,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:21:01,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:21:01,186 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/sv-benchmarks/c/bitvector/gcd_1.c[359,372] [2020-12-09 05:21:01,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:21:01,200 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:21:01,208 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/sv-benchmarks/c/bitvector/gcd_1.c[359,372] [2020-12-09 05:21:01,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:21:01,222 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:21:01,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01 WrapperNode [2020-12-09 05:21:01,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:21:01,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:21:01,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:21:01,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:21:01,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:21:01,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:21:01,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:21:01,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:21:01,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... [2020-12-09 05:21:01,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:21:01,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:21:01,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:21:01,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:21:01,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/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 [2020-12-09 05:21:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:21:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:21:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:21:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:21:01,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:21:01,527 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-09 05:21:01,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:01 BoogieIcfgContainer [2020-12-09 05:21:01,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:21:01,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:21:01,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:21:01,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:21:01,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:21:01" (1/3) ... [2020-12-09 05:21:01,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305ac6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:21:01, skipping insertion in model container [2020-12-09 05:21:01,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:01" (2/3) ... [2020-12-09 05:21:01,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305ac6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:21:01, skipping insertion in model container [2020-12-09 05:21:01,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:01" (3/3) ... [2020-12-09 05:21:01,534 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1.c [2020-12-09 05:21:01,544 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:21:01,546 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 05:21:01,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 05:21:01,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:21:01,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:21:01,570 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:21:01,570 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:21:01,570 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:21:01,570 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:21:01,570 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:21:01,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:21:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-09 05:21:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 05:21:01,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:21:01,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 05:21:01,583 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 05:21:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:21:01,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2596879, now seen corresponding path program 1 times [2020-12-09 05:21:01,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:21:01,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326741228] [2020-12-09 05:21:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:21:01,657 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:21:01,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621487106] [2020-12-09 05:21:01,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/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 [2020-12-09 05:21:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:21:01,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 05:21:01,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:21:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:01,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:21:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:01,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326741228] [2020-12-09 05:21:01,794 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:21:01,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621487106] [2020-12-09 05:21:01,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:21:01,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2020-12-09 05:21:01,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062177617] [2020-12-09 05:21:01,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 05:21:01,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:21:01,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 05:21:01,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 05:21:01,811 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 6 states. [2020-12-09 05:21:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:21:01,852 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-12-09 05:21:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:21:01,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 05:21:01,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:21:01,862 INFO L225 Difference]: With dead ends: 18 [2020-12-09 05:21:01,862 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 05:21:01,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:21:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 05:21:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 05:21:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 05:21:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-09 05:21:01,892 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2020-12-09 05:21:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:21:01,892 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-12-09 05:21:01,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 05:21:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-09 05:21:01,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 05:21:01,893 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:21:01,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 05:21:02,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 05:21:02,095 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 05:21:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:21:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash 80503291, now seen corresponding path program 1 times [2020-12-09 05:21:02,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:21:02,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708567228] [2020-12-09 05:21:02,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:21:02,132 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:21:02,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977559658] [2020-12-09 05:21:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/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 [2020-12-09 05:21:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:21:02,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 05:21:02,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:21:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:02,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:21:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:02,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708567228] [2020-12-09 05:21:02,242 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:21:02,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977559658] [2020-12-09 05:21:02,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:21:02,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-12-09 05:21:02,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539077343] [2020-12-09 05:21:02,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:21:02,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:21:02,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:21:02,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:21:02,245 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 4 states. [2020-12-09 05:21:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:21:02,255 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-09 05:21:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:21:02,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 05:21:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:21:02,256 INFO L225 Difference]: With dead ends: 16 [2020-12-09 05:21:02,256 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 05:21:02,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:21:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 05:21:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2020-12-09 05:21:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 05:21:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 05:21:02,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 05:21:02,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:21:02,258 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 05:21:02,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:21:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 05:21:02,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 05:21:02,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:21:02,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 05:21:02,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:21:02,461 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 05:21:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:21:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash 80509313, now seen corresponding path program 1 times [2020-12-09 05:21:02,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:21:02,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204134050] [2020-12-09 05:21:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:21:02,492 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:21:02,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78563574] [2020-12-09 05:21:02,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/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 [2020-12-09 05:21:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:21:02,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 05:21:02,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:21:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:02,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:21:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:21:02,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204134050] [2020-12-09 05:21:02,632 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:21:02,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78563574] [2020-12-09 05:21:02,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:21:02,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-12-09 05:21:02,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41032237] [2020-12-09 05:21:02,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:21:02,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:21:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:21:02,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:21:02,633 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2020-12-09 05:21:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:21:02,635 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-12-09 05:21:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:21:02,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 05:21:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:21:02,636 INFO L225 Difference]: With dead ends: 10 [2020-12-09 05:21:02,636 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:21:02,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:21:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:21:02,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:21:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:21:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:21:02,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-12-09 05:21:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:21:02,637 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:21:02,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:21:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:21:02,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:21:02,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:21:02,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:21:02,904 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 05:21:02,905 INFO L258 CegarLoopResult]: At program point L19-1(lines 13 25) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-12-09 05:21:02,905 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-12-09 05:21:02,906 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:21:02,906 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-09 05:21:02,906 INFO L262 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-12-09 05:21:02,906 INFO L262 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-12-09 05:21:02,907 INFO L262 CegarLoopResult]: For program point L16-4(lines 13 25) no Hoare annotation was computed. [2020-12-09 05:21:02,907 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-12-09 05:21:02,907 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:21:02,908 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-12-09 05:21:02,908 INFO L262 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-12-09 05:21:02,908 INFO L262 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-12-09 05:21:02,909 INFO L258 CegarLoopResult]: At program point L34-1(lines 34 38) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 128)) [2020-12-09 05:21:02,909 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 05:21:02,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:21:02 BoogieIcfgContainer [2020-12-09 05:21:02,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:21:02,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:21:02,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:21:02,941 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:21:02,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:01" (3/4) ... [2020-12-09 05:21:02,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 05:21:02,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-09 05:21:02,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 05:21:02,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 05:21:02,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:21:02,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a56cf7dc-da2a-4e57-a82e-f230fcbb6b32/bin/utaipan/witness.graphml [2020-12-09 05:21:02,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:21:02,989 INFO L168 Benchmark]: Toolchain (without parser) took 1910.70 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.1 MB in the beginning and 90.1 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:21:02,989 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:21:02,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.43 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 56.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 54.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,990 INFO L168 Benchmark]: Boogie Preprocessor took 15.94 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 53.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,991 INFO L168 Benchmark]: RCFGBuilder took 262.69 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 59.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,991 INFO L168 Benchmark]: TraceAbstraction took 1410.92 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 92.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,992 INFO L168 Benchmark]: Witness Printer took 47.05 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 90.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:21:02,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.43 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 56.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 54.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.94 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 53.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 262.69 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 59.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1410.92 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 92.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Witness Printer took 47.05 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 90.1 MB in the end (delta: 2.8 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: 13]: Loop Invariant Derived loop invariant: 0 <= x + 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 48 SDslu, 17 SDs, 0 SdLazy, 18 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 5 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...