./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.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_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de7eb1b4edf01055c51816e5c7538789ce22635d ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de7eb1b4edf01055c51816e5c7538789ce22635d .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:37:24,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:24,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:24,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:24,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:24,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:24,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:24,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:24,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:24,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:24,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:24,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:24,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:24,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:24,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:24,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:24,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:24,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:24,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:24,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:24,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:24,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:24,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:24,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:24,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:24,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:24,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:24,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:24,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:24,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:24,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:24,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:24,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:24,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:24,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:24,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:24,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:24,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:24,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:24,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:24,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:24,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:37:24,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:24,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:24,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:24,573 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:24,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:24,574 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:24,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:37:24,574 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:24,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:24,575 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:37:24,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:37:24,575 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:24,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:37:24,575 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:37:24,576 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:37:24,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:24,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:24,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:37:24,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:24,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:24,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:24,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:24,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:24,578 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:24,578 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:24,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:24,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:24,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:24,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:24,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:24,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:24,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:24,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:24,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:24,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:24,581 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:37:24,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:37:24,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:24,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:24,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:24,582 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7eb1b4edf01055c51816e5c7538789ce22635d [2020-11-28 07:37:24,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:24,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:24,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:24,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:24,868 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:24,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2020-11-28 07:37:24,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/8d581fc2a/08ff132867cb47be9db62a3a291e8fa7/FLAGefc8717ac [2020-11-28 07:37:25,458 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:25,458 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2020-11-28 07:37:25,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/8d581fc2a/08ff132867cb47be9db62a3a291e8fa7/FLAGefc8717ac [2020-11-28 07:37:25,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/8d581fc2a/08ff132867cb47be9db62a3a291e8fa7 [2020-11-28 07:37:25,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:25,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:25,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:25,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:25,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:25,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:25" (1/1) ... [2020-11-28 07:37:25,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed8a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:25, skipping insertion in model container [2020-11-28 07:37:25,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:25" (1/1) ... [2020-11-28 07:37:25,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:25,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:26,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,092 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:26,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,124 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:26,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26 WrapperNode [2020-11-28 07:37:26,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:26,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:26,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:26,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:26,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:26,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:26,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:26,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:26,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:26,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:37:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:26,504 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:26,505 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:37:26,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:26 BoogieIcfgContainer [2020-11-28 07:37:26,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:26,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:26,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:26,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:26,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:25" (1/3) ... [2020-11-28 07:37:26,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae0d3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:26, skipping insertion in model container [2020-11-28 07:37:26,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (2/3) ... [2020-11-28 07:37:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae0d3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:26, skipping insertion in model container [2020-11-28 07:37:26,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:26" (3/3) ... [2020-11-28 07:37:26,519 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-11-28 07:37:26,530 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:26,533 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:37:26,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:37:26,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:26,568 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:26,568 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:26,568 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:26,569 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:26,569 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:26,569 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:26,569 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 07:37:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:37:26,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:26,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:37:26,588 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:26,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:26,594 INFO L82 PathProgramCache]: Analyzing trace with hash 59538404, now seen corresponding path program 1 times [2020-11-28 07:37:26,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:26,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530259789] [2020-11-28 07:37:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:26,741 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 07:37:26,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530259789] [2020-11-28 07:37:26,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:26,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:26,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629882773] [2020-11-28 07:37:26,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:37:26,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:26,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:37:26,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:37:26,765 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-11-28 07:37:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:26,779 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-28 07:37:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:37:26,780 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-11-28 07:37:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:26,788 INFO L225 Difference]: With dead ends: 15 [2020-11-28 07:37:26,789 INFO L226 Difference]: Without dead ends: 7 [2020-11-28 07:37:26,791 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 07:37:26,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-11-28 07:37:26,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-28 07:37:26,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-28 07:37:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-28 07:37:26,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-11-28 07:37:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:26,822 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-11-28 07:37:26,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:37:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-28 07:37:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:37:26,823 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:26,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:37:26,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:37:26,824 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:26,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:26,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1839044207, now seen corresponding path program 1 times [2020-11-28 07:37:26,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:26,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571916294] [2020-11-28 07:37:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:26,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:26,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:26,895 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:37:26,895 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:37:26,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:37:26,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:26 BoogieIcfgContainer [2020-11-28 07:37:26,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:26,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:26,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:26,917 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:26,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:26" (3/4) ... [2020-11-28 07:37:26,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:37:26,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:26,923 INFO L168 Benchmark]: Toolchain (without parser) took 1093.16 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 55.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:26,924 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:26,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.09 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 89.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:26,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.60 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:26,927 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.4 MB in the end (delta: 945.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:26,928 INFO L168 Benchmark]: RCFGBuilder took 326.32 ms. Allocated memory is still 113.2 MB. Free memory was 87.4 MB in the beginning and 74.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:26,928 INFO L168 Benchmark]: TraceAbstraction took 407.35 ms. Allocated memory is still 113.2 MB. Free memory was 74.3 MB in the beginning and 55.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:26,929 INFO L168 Benchmark]: Witness Printer took 4.47 ms. Allocated memory is still 113.2 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:26,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.09 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 89.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.60 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.4 MB in the end (delta: 945.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 326.32 ms. Allocated memory is still 113.2 MB. Free memory was 87.4 MB in the beginning and 74.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 407.35 ms. Allocated memory is still 113.2 MB. Free memory was 74.3 MB in the beginning and 55.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.47 ms. Allocated memory is still 113.2 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; [L13] COND FALSE !(__VERIFIER_nondet_int()) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "bin-suffix-5.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 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=9occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:37:29,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:29,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:29,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:29,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:29,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:29,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:29,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:29,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:29,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:29,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:29,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:29,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:29,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:29,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:29,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:29,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:29,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:29,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:29,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:29,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:29,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:29,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:29,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:29,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:29,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:29,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:29,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:29,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:29,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:29,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:29,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:29,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:29,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:29,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:29,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:29,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:29,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:29,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:29,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:29,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:29,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:37:29,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:29,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:29,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:29,535 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:29,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:29,535 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:29,536 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:29,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:29,536 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:29,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:29,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:29,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:29,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:37:29,540 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:37:29,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:29,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:29,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:29,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:29,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:29,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:37:29,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:29,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:29,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:29,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:29,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:29,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:29,543 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:37:29,543 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:37:29,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:29,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:29,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:29,544 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7eb1b4edf01055c51816e5c7538789ce22635d [2020-11-28 07:37:29,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:29,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:29,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:29,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:29,993 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:29,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2020-11-28 07:37:30,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/53541d175/275e2c70051d4d6aa663552f02051115/FLAG61359e00d [2020-11-28 07:37:30,543 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:30,545 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2020-11-28 07:37:30,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/53541d175/275e2c70051d4d6aa663552f02051115/FLAG61359e00d [2020-11-28 07:37:30,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/data/53541d175/275e2c70051d4d6aa663552f02051115 [2020-11-28 07:37:30,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:30,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:30,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:30,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:30,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:30,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:30" (1/1) ... [2020-11-28 07:37:30,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9faff71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:30, skipping insertion in model container [2020-11-28 07:37:30,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:30" (1/1) ... [2020-11-28 07:37:30,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:30,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:31,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:31,190 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:31,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:31,271 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:31,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31 WrapperNode [2020-11-28 07:37:31,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:31,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:31,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:31,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:31,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:31,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:31,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:31,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:31,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... [2020-11-28 07:37:31,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:31,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:31,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:31,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:31,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:37:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:31,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:31,755 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:37:31,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:31 BoogieIcfgContainer [2020-11-28 07:37:31,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:31,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:31,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:31,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:31,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:30" (1/3) ... [2020-11-28 07:37:31,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e49c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:31, skipping insertion in model container [2020-11-28 07:37:31,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:31" (2/3) ... [2020-11-28 07:37:31,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e49c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:31, skipping insertion in model container [2020-11-28 07:37:31,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:31" (3/3) ... [2020-11-28 07:37:31,766 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-11-28 07:37:31,778 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:31,782 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:37:31,794 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:37:31,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:31,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:31,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:31,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:31,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:31,835 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:31,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:31,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-28 07:37:31,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:37:31,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:31,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:37:31,855 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2020-11-28 07:37:31,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:31,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940806024] [2020-11-28 07:37:31,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:37:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:31,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 07:37:31,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:32,027 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 07:37:32,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:32,058 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 07:37:32,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940806024] [2020-11-28 07:37:32,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:32,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:37:32,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003755897] [2020-11-28 07:37:32,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:37:32,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:32,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:37:32,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:37:32,087 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2020-11-28 07:37:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:32,158 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2020-11-28 07:37:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:37:32,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-28 07:37:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:32,164 INFO L225 Difference]: With dead ends: 25 [2020-11-28 07:37:32,164 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:37:32,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:37:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:37:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:37:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:37:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:37:32,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-28 07:37:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:32,189 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:37:32,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:37:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:37:32,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:37:32,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:37:32,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:37:32,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:37:32,535 INFO L270 CegarLoopResult]: At program point L17(lines 11 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv5 32) (bvand (_ bv5 32) ULTIMATE.start_main_~x~0))) [2020-11-28 07:37:32,535 INFO L270 CegarLoopResult]: At program point L13-2(lines 13 15) the Hoare annotation is: (= (_ bv5 32) (bvand (_ bv5 32) ULTIMATE.start_main_~x~0)) [2020-11-28 07:37:32,535 INFO L274 CegarLoopResult]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:37:32,536 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-28 07:37:32,537 INFO L270 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv5 32) (bvand (_ bv5 32) ULTIMATE.start_main_~x~0))) [2020-11-28 07:37:32,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:32 BoogieIcfgContainer [2020-11-28 07:37:32,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:32,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:32,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:32,552 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:32,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:31" (3/4) ... [2020-11-28 07:37:32,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:37:32,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:37:32,565 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:37:32,565 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:37:32,565 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:37:32,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_08fc4bae-3b26-4c81-a54b-4f69da03bc84/bin/utaipan/witness.graphml [2020-11-28 07:37:32,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:32,601 INFO L168 Benchmark]: Toolchain (without parser) took 1672.13 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:32,601 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.1 MB in the beginning and 33.1 MB in the end (delta: 35.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:32,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.54 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 50.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:32,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.55 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:32,603 INFO L168 Benchmark]: Boogie Preprocessor took 44.26 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 48.1 MB in the end (delta: 999.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:32,604 INFO L168 Benchmark]: RCFGBuilder took 398.10 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 37.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:32,605 INFO L168 Benchmark]: TraceAbstraction took 792.22 ms. Allocated memory is still 67.1 MB. Free memory was 37.1 MB in the beginning and 42.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:32,605 INFO L168 Benchmark]: Witness Printer took 46.93 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:32,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.1 MB in the beginning and 33.1 MB in the end (delta: 35.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.54 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 50.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.55 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.26 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 48.1 MB in the end (delta: 999.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 398.10 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 37.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 792.22 ms. Allocated memory is still 67.1 MB. Free memory was 37.1 MB in the beginning and 42.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 46.93 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 13]: Loop Invariant Derived loop invariant: 5bv32 == ~bvand32(5bv32, x) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 5bv32 == ~bvand32(5bv32, x) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 5bv32 == ~bvand32(5bv32, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 26 SDslu, 9 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 3 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...