./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/hhk2008.i --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_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/hhk2008.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/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 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:58:20,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:58:20,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:58:20,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:58:20,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:58:20,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:58:20,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:58:20,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:58:20,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:58:20,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:58:20,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:58:20,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:58:20,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:58:20,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:58:20,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:58:20,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:58:20,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:58:20,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:58:20,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:58:20,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:58:20,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:58:20,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:58:20,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:58:20,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:58:20,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:58:20,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:58:20,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:58:20,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:58:20,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:58:20,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:58:20,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:58:20,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:58:20,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:58:20,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:58:20,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:58:20,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:58:20,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:58:20,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:58:20,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:58:20,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:58:20,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:58:20,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:58:20,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:58:20,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:58:20,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:58:20,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:58:20,661 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:58:20,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:58:20,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:58:20,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:58:20,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:58:20,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:58:20,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:58:20,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:58:20,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:58:20,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:58:20,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:58:20,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:58:20,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:58:20,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:58:20,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:58:20,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:58:20,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:58:20,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:58:20,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:58:20,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:58:20,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:58:20,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:58:20,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:58:20,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:58:20,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:58:20,667 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_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 [2020-11-29 18:58:20,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:58:20,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:58:20,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:58:20,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:58:20,915 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:58:20,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/../../sv-benchmarks/c/loop-lit/hhk2008.i [2020-11-29 18:58:20,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/data/b3edf9847/003fb3e0e7594fb392c3c0fb65e26922/FLAG0981531ff [2020-11-29 18:58:21,477 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:58:21,477 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/sv-benchmarks/c/loop-lit/hhk2008.i [2020-11-29 18:58:21,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/data/b3edf9847/003fb3e0e7594fb392c3c0fb65e26922/FLAG0981531ff [2020-11-29 18:58:21,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/data/b3edf9847/003fb3e0e7594fb392c3c0fb65e26922 [2020-11-29 18:58:21,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:58:21,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:58:21,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:58:21,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:58:21,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:58:21,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:58:21" (1/1) ... [2020-11-29 18:58:21,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20127a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:21, skipping insertion in model container [2020-11-29 18:58:21,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:58:21" (1/1) ... [2020-11-29 18:58:21,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:58:21,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:58:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:58:22,120 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:58:22,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:58:22,156 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:58:22,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22 WrapperNode [2020-11-29 18:58:22,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:58:22,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:58:22,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:58:22,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:58:22,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:58:22,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:58:22,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:58:22,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:58:22,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... [2020-11-29 18:58:22,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:58:22,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:58:22,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:58:22,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:58:22,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:58:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:58:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:58:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:58:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:58:22,637 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:58:22,637 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:58:22,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:22 BoogieIcfgContainer [2020-11-29 18:58:22,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:58:22,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:58:22,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:58:22,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:58:22,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:58:21" (1/3) ... [2020-11-29 18:58:22,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442e9f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:58:22, skipping insertion in model container [2020-11-29 18:58:22,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:22" (2/3) ... [2020-11-29 18:58:22,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442e9f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:58:22, skipping insertion in model container [2020-11-29 18:58:22,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:22" (3/3) ... [2020-11-29 18:58:22,652 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2020-11-29 18:58:22,663 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:58:22,667 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:58:22,680 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:58:22,718 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:58:22,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:58:22,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:58:22,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:58:22,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:58:22,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:58:22,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:58:22,724 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:58:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-29 18:58:22,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:58:22,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:22,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:58:22,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:22,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:22,746 INFO L82 PathProgramCache]: Analyzing trace with hash 825893041, now seen corresponding path program 1 times [2020-11-29 18:58:22,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:22,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030298713] [2020-11-29 18:58:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:23,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030298713] [2020-11-29 18:58:23,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:23,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:23,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373030081] [2020-11-29 18:58:23,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:23,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:23,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:23,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:23,120 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-11-29 18:58:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:23,276 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-11-29 18:58:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:58:23,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-29 18:58:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:23,299 INFO L225 Difference]: With dead ends: 36 [2020-11-29 18:58:23,299 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 18:58:23,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:58:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 18:58:23,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 18:58:23,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:58:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-29 18:58:23,339 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-11-29 18:58:23,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:23,339 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-29 18:58:23,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:23,340 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-29 18:58:23,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:58:23,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:23,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:58:23,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:58:23,342 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:23,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:23,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1433278006, now seen corresponding path program 1 times [2020-11-29 18:58:23,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:23,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228700996] [2020-11-29 18:58:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:23,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228700996] [2020-11-29 18:58:23,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892424709] [2020-11-29 18:58:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:58:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:23,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 18:58:23,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:58:23,751 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:58:23,762 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:58:23,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:58:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:23,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:58:23,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 18:58:23,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598235471] [2020-11-29 18:58:23,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 18:58:23,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:23,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 18:58:23,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:58:23,809 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2020-11-29 18:58:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:23,975 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-11-29 18:58:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:58:23,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-11-29 18:58:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:23,977 INFO L225 Difference]: With dead ends: 19 [2020-11-29 18:58:23,977 INFO L226 Difference]: Without dead ends: 13 [2020-11-29 18:58:23,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:58:23,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-29 18:58:23,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-29 18:58:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 18:58:23,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-29 18:58:23,981 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-11-29 18:58:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:23,981 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-29 18:58:23,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 18:58:23,982 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-29 18:58:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:58:23,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:23,982 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:58:24,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 18:58:24,206 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1212624559, now seen corresponding path program 2 times [2020-11-29 18:58:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:24,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023522017] [2020-11-29 18:58:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:24,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023522017] [2020-11-29 18:58:24,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534586349] [2020-11-29 18:58:24,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:58:24,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:58:24,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:58:24,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 18:58:24,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:58:24,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:58:24,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:58:24,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:58:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:24,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:58:24,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-11-29 18:58:24,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750939591] [2020-11-29 18:58:24,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 18:58:24,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:24,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 18:58:24,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-11-29 18:58:24,695 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2020-11-29 18:58:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:25,023 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-29 18:58:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 18:58:25,023 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-29 18:58:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:25,024 INFO L225 Difference]: With dead ends: 16 [2020-11-29 18:58:25,024 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:58:25,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-29 18:58:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:58:25,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:58:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:58:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:58:25,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 18:58:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:25,026 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:58:25,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 18:58:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:58:25,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:58:25,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:58:25,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:58:25,327 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:58:25,327 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-29 18:58:25,327 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-29 18:58:25,327 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:58:25,328 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~cnt~0)) (.cse0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (< ULTIMATE.start_main_~res~0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0 1)) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-29 18:58:25,328 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:58:25,328 INFO L274 CegarLoopResult]: For program point L32-3(lines 32 35) no Hoare annotation was computed. [2020-11-29 18:58:25,328 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:58:25,328 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-11-29 18:58:25,328 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:58:25,329 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-29 18:58:25,329 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-11-29 18:58:25,329 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 18:58:25,329 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-29 18:58:25,329 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-29 18:58:25,329 INFO L277 CegarLoopResult]: At program point L37(lines 24 38) the Hoare annotation is: true [2020-11-29 18:58:25,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:58:25 BoogieIcfgContainer [2020-11-29 18:58:25,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:58:25,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:58:25,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:58:25,348 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:58:25,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:22" (3/4) ... [2020-11-29 18:58:25,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:58:25,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:58:25,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:58:25,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:58:25,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:58:25,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4b14f0a-08dd-4279-a1a6-8b53065c91a3/bin/uautomizer/witness.graphml [2020-11-29 18:58:25,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:58:25,416 INFO L168 Benchmark]: Toolchain (without parser) took 3538.52 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 91.2 MB in the beginning and 62.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,416 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:58:25,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.84 ms. Allocated memory is still 123.7 MB. Free memory was 91.2 MB in the beginning and 99.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.44 ms. Allocated memory is still 123.7 MB. Free memory was 99.1 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,418 INFO L168 Benchmark]: Boogie Preprocessor took 48.12 ms. Allocated memory is still 123.7 MB. Free memory was 97.7 MB in the beginning and 96.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:58:25,419 INFO L168 Benchmark]: RCFGBuilder took 389.55 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 85.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,419 INFO L168 Benchmark]: TraceAbstraction took 2707.91 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 84.8 MB in the beginning and 66.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,420 INFO L168 Benchmark]: Witness Printer took 66.43 ms. Allocated memory is still 148.9 MB. Free memory was 66.1 MB in the beginning and 62.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:25,423 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 77.6 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.84 ms. Allocated memory is still 123.7 MB. Free memory was 91.2 MB in the beginning and 99.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.44 ms. Allocated memory is still 123.7 MB. Free memory was 99.1 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.12 ms. Allocated memory is still 123.7 MB. Free memory was 97.7 MB in the beginning and 96.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 389.55 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 85.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2707.91 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 84.8 MB in the beginning and 66.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * Witness Printer took 66.43 ms. Allocated memory is still 148.9 MB. Free memory was 66.1 MB in the beginning and 62.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (res < a + b + 1 && a + b <= res + cnt) && res + cnt <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 32 SDslu, 74 SDs, 0 SdLazy, 102 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 2957 SizeOfPredicates, 12 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 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...