./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-005.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-005.c -s /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb28031a68e9901575d70de4181d02d22e8fd5c4 .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:03:34,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:34,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:34,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:34,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:34,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:34,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:34,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:34,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:34,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:34,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:34,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:34,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:34,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:34,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:34,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:34,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:34,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:34,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:34,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:34,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:34,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:34,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:34,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:34,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:34,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:34,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:34,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:34,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:34,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:34,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:34,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:34,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:34,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:34,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:34,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:34,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:34,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:34,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:34,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:34,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:34,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:03:34,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:34,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:34,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:34,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:34,870 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:34,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:34,870 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:34,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:34,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:34,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:34,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:34,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:34,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:34,873 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:34,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:34,873 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:34,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:34,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:34,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:34,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:34,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:34,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:34,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:34,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:34,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:34,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:34,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:03:34,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:34,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:34,877 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_91a44ed9-1c53-4831-bd42-703b92d4e6b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb28031a68e9901575d70de4181d02d22e8fd5c4 [2020-11-28 03:03:35,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:35,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:35,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:35,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:35,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:35,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/../../sv-benchmarks/c/xcsp/AllInterval-005.c [2020-11-28 03:03:35,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/data/ff3bb16bc/a2594847c899460cb8cc0ad687abca32/FLAGd2908abad [2020-11-28 03:03:35,974 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:35,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/sv-benchmarks/c/xcsp/AllInterval-005.c [2020-11-28 03:03:35,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/data/ff3bb16bc/a2594847c899460cb8cc0ad687abca32/FLAGd2908abad [2020-11-28 03:03:36,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/data/ff3bb16bc/a2594847c899460cb8cc0ad687abca32 [2020-11-28 03:03:36,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:36,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:36,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:36,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:36,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:36,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afdc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36, skipping insertion in model container [2020-11-28 03:03:36,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:36,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:36,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:36,701 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:36,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:36,757 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:36,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36 WrapperNode [2020-11-28 03:03:36,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:36,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:36,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:36,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:36,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:36,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:36,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:36,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:36,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... [2020-11-28 03:03:36,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:36,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:36,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:36,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:36,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:36,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:03:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:37,627 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:37,628 INFO L298 CfgBuilder]: Removed 82 assume(true) statements. [2020-11-28 03:03:37,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:37 BoogieIcfgContainer [2020-11-28 03:03:37,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:37,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:37,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:37,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:37,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:36" (1/3) ... [2020-11-28 03:03:37,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d71b935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:37, skipping insertion in model container [2020-11-28 03:03:37,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:36" (2/3) ... [2020-11-28 03:03:37,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d71b935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:37, skipping insertion in model container [2020-11-28 03:03:37,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:37" (3/3) ... [2020-11-28 03:03:37,640 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2020-11-28 03:03:37,653 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:37,658 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:03:37,671 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:03:37,700 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:37,700 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:37,700 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:37,700 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:37,700 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:37,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:37,701 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:37,701 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2020-11-28 03:03:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-28 03:03:37,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:37,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:37,732 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:37,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:37,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1499740993, now seen corresponding path program 1 times [2020-11-28 03:03:37,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:37,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824355971] [2020-11-28 03:03:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:37,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824355971] [2020-11-28 03:03:37,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:37,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:37,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061264065] [2020-11-28 03:03:37,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:03:37,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:38,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:03:38,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:38,022 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2020-11-28 03:03:38,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:38,050 INFO L93 Difference]: Finished difference Result 175 states and 257 transitions. [2020-11-28 03:03:38,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:03:38,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 86 [2020-11-28 03:03:38,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:38,063 INFO L225 Difference]: With dead ends: 175 [2020-11-28 03:03:38,063 INFO L226 Difference]: Without dead ends: 87 [2020-11-28 03:03:38,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-28 03:03:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-28 03:03:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 03:03:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-11-28 03:03:38,111 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 86 [2020-11-28 03:03:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:38,111 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-11-28 03:03:38,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:03:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-11-28 03:03:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-28 03:03:38,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:38,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:38,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:03:38,117 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:38,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:38,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1861667587, now seen corresponding path program 1 times [2020-11-28 03:03:38,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:38,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542130374] [2020-11-28 03:03:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:38,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:38,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:38,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:38,790 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:03:38,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:03:38,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:38 BoogieIcfgContainer [2020-11-28 03:03:38,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:38,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:38,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:38,908 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:38,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:37" (3/4) ... [2020-11-28 03:03:38,914 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:03:38,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91a44ed9-1c53-4831-bd42-703b92d4e6b7/bin/uautomizer/witness.graphml [2020-11-28 03:03:38,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:39,001 INFO L168 Benchmark]: Toolchain (without parser) took 2653.11 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 75.8 MB in the beginning and 71.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,002 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 83.5 MB in the beginning and 83.4 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:39,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.40 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 85.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.40 ms. Allocated memory is still 111.1 MB. Free memory was 85.6 MB in the beginning and 83.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,004 INFO L168 Benchmark]: Boogie Preprocessor took 37.61 ms. Allocated memory is still 111.1 MB. Free memory was 83.5 MB in the beginning and 81.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,004 INFO L168 Benchmark]: RCFGBuilder took 779.00 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 55.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,005 INFO L168 Benchmark]: TraceAbstraction took 1275.22 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 54.6 MB in the beginning and 78.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,006 INFO L168 Benchmark]: Witness Printer took 91.26 ms. Allocated memory is still 140.5 MB. Free memory was 78.2 MB in the beginning and 71.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:39,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 83.5 MB in the beginning and 83.4 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.40 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 85.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.40 ms. Allocated memory is still 111.1 MB. Free memory was 85.6 MB in the beginning and 83.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.61 ms. Allocated memory is still 111.1 MB. Free memory was 83.5 MB in the beginning and 81.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 779.00 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 55.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1275.22 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 54.6 MB in the beginning and 78.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 91.26 ms. Allocated memory is still 140.5 MB. Free memory was 78.2 MB in the beginning and 71.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L80] int var_for_abs; [L81] var_for_abs = var0 - var1 [L82] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L82] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L84] var_for_abs = var1 - var2 [L85] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L85] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L87] var_for_abs = var2 - var3 [L88] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L88] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L90] var_for_abs = var3 - var4 [L91] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L91] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L17] __assert_fail("0", "AllInterval-005.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 7225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...