./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/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 64bit --witnessprinter.graph.data.programhash 3bdd2aaf4af84b42e88a03b6cada9c80fbadbca9 ...................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:36:47,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:36:47,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:36:47,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:36:47,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:36:47,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:36:47,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:36:47,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:36:47,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:36:47,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:36:47,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:36:47,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:36:47,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:36:47,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:36:47,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:36:47,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:36:47,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:36:47,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:36:47,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:36:47,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:36:47,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:36:47,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:36:47,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:36:47,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:36:47,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:36:47,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:36:47,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:36:47,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:36:47,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:36:47,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:36:47,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:36:47,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:36:47,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:36:47,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:36:47,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:36:47,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:36:47,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:36:47,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:36:47,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:36:47,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:36:47,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:36:47,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 13:36:47,129 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:36:47,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:36:47,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:36:47,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:36:47,131 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:36:47,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:36:47,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:36:47,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 13:36:47,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:36:47,133 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:36:47,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:36:47,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:36:47,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:36:47,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:36:47,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:36:47,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:36:47,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:36:47,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:36:47,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:36:47,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:36:47,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:36:47,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:36:47,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:36:47,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f98914a5-c803-439b-bb86-4cae550810eb/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bdd2aaf4af84b42e88a03b6cada9c80fbadbca9 [2019-12-07 13:36:47,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:36:47,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:36:47,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:36:47,279 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:36:47,280 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:36:47,280 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTermination2.c [2019-12-07 13:36:47,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/data/8e2956c73/4a2e3ae8d83241cab93bfbbf3cdbfc85/FLAG6a056f134 [2019-12-07 13:36:47,627 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:36:47,628 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/sv-benchmarks/c/termination-crafted/NonTermination2.c [2019-12-07 13:36:47,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/data/8e2956c73/4a2e3ae8d83241cab93bfbbf3cdbfc85/FLAG6a056f134 [2019-12-07 13:36:47,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/data/8e2956c73/4a2e3ae8d83241cab93bfbbf3cdbfc85 [2019-12-07 13:36:47,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:36:47,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:36:47,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:36:47,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:36:47,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:36:47,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440ab6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47, skipping insertion in model container [2019-12-07 13:36:47,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:36:47,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:36:47,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:36:47,773 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:36:47,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:36:47,822 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:36:47,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47 WrapperNode [2019-12-07 13:36:47,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:36:47,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:36:47,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:36:47,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:36:47,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:36:47,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:36:47,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:36:47,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:36:47,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... [2019-12-07 13:36:47,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:36:47,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:36:47,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:36:47,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:36:47,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/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 [2019-12-07 13:36:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:36:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:36:47,990 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:36:47,990 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 13:36:47,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:47 BoogieIcfgContainer [2019-12-07 13:36:47,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:36:47,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:36:47,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:36:47,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:36:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:36:47" (1/3) ... [2019-12-07 13:36:47,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c2b57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:36:47, skipping insertion in model container [2019-12-07 13:36:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:47" (2/3) ... [2019-12-07 13:36:47,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c2b57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:36:47, skipping insertion in model container [2019-12-07 13:36:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:47" (3/3) ... [2019-12-07 13:36:47,995 INFO L109 eAbstractionObserver]: Analyzing ICFG NonTermination2.c [2019-12-07 13:36:48,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:36:48,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 13:36:48,013 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 13:36:48,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:36:48,027 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:36:48,027 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:36:48,027 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:36:48,027 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:36:48,027 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:36:48,028 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:36:48,028 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:36:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 13:36:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 13:36:48,039 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:36:48,040 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 13:36:48,040 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 13:36:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:36:48,044 INFO L82 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2019-12-07 13:36:48,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:36:48,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695848680] [2019-12-07 13:36:48,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:36:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:36:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:36:48,122 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:36:48,122 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:36:48,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:36:48 BoogieIcfgContainer [2019-12-07 13:36:48,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:36:48,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:36:48,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:36:48,134 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:36:48,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:47" (3/4) ... [2019-12-07 13:36:48,135 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:36:48,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f98914a5-c803-439b-bb86-4cae550810eb/bin/uautomizer/witness.graphml [2019-12-07 13:36:48,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:36:48,160 INFO L168 Benchmark]: Toolchain (without parser) took 517.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -106.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:48,161 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:48,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:48,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:48,162 INFO L168 Benchmark]: Boogie Preprocessor took 12.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:48,162 INFO L168 Benchmark]: RCFGBuilder took 133.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:48,163 INFO L168 Benchmark]: TraceAbstraction took 141.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:48,163 INFO L168 Benchmark]: Witness Printer took 25.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:48,165 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 141.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 25.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x, oldx; [L13] x = __VERIFIER_nondet_int() [L14] x > 1 && x >= 2*oldx [L14] 2*oldx - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...