./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.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_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/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 8770e865452d763f6a1ae70a92c5caf41552c1e5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:20,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:20,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:20,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:20,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:20,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:20,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:20,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:20,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:20,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:20,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:20,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:20,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:20,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:20,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:20,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:20,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:20,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:20,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:20,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:20,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:20,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:20,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:20,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:20,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:20,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:20,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:20,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:20,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:20,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:20,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:20,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:20,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:20,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:20,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:20,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:20,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:20,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:20,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:20,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:20,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:20,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:20,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:20,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:20,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:20,545 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:20,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:20,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:20,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:20,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:20,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:20,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:20,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:20,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:20,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:20,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:20,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:20,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:20,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:20,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:20,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:20,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:20,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:20,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:20,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:20,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:20,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:20,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:20,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:20,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:20,552 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_23b58819-6ba3-4cba-bae8-7350e318a4ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8770e865452d763f6a1ae70a92c5caf41552c1e5 [2020-11-28 02:56:20,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:20,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:20,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:20,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:20,912 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:20,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:56:20,997 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/data/e7d39ea25/d22f93cdb6fa44ceaa9f2427150120a9/FLAGc27901f2d [2020-11-28 02:56:21,593 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:21,593 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:56:21,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/data/e7d39ea25/d22f93cdb6fa44ceaa9f2427150120a9/FLAGc27901f2d [2020-11-28 02:56:21,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/data/e7d39ea25/d22f93cdb6fa44ceaa9f2427150120a9 [2020-11-28 02:56:21,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:21,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:21,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:21,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:21,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:21,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:21,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f20819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:21, skipping insertion in model container [2020-11-28 02:56:21,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:21,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:21,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,210 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:22,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,262 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:22,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22 WrapperNode [2020-11-28 02:56:22,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:22,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:22,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:22,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:22,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:22,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:22,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:22,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:56:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:56:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-28 02:56:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:56:23,002 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:23,004 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 02:56:23,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23 BoogieIcfgContainer [2020-11-28 02:56:23,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:23,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:23,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:23,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:23,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:21" (1/3) ... [2020-11-28 02:56:23,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1a891d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:23, skipping insertion in model container [2020-11-28 02:56:23,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (2/3) ... [2020-11-28 02:56:23,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1a891d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:23, skipping insertion in model container [2020-11-28 02:56:23,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23" (3/3) ... [2020-11-28 02:56:23,016 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:56:23,028 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:23,032 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:23,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:23,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:23,085 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:23,085 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:23,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:23,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:23,085 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:23,085 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:23,086 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-28 02:56:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 02:56:23,115 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,122 INFO L82 PathProgramCache]: Analyzing trace with hash -949620774, now seen corresponding path program 1 times [2020-11-28 02:56:23,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102740245] [2020-11-28 02:56:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,337 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 02:56:23,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102740245] [2020-11-28 02:56:23,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:23,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402147433] [2020-11-28 02:56:23,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:23,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:23,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:23,366 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-28 02:56:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,390 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-11-28 02:56:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:23,391 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-11-28 02:56:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,411 INFO L225 Difference]: With dead ends: 70 [2020-11-28 02:56:23,411 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 02:56:23,417 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 02:56:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 02:56:23,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-28 02:56:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-28 02:56:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2020-11-28 02:56:23,459 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 19 [2020-11-28 02:56:23,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,459 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-28 02:56:23,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2020-11-28 02:56:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 02:56:23,461 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:23,462 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash -2114946543, now seen corresponding path program 1 times [2020-11-28 02:56:23,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880997133] [2020-11-28 02:56:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,546 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 02:56:23,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880997133] [2020-11-28 02:56:23,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:23,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006640945] [2020-11-28 02:56:23,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:23,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:23,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:23,550 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand 3 states. [2020-11-28 02:56:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,581 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2020-11-28 02:56:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:23,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 02:56:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,583 INFO L225 Difference]: With dead ends: 60 [2020-11-28 02:56:23,583 INFO L226 Difference]: Without dead ends: 32 [2020-11-28 02:56:23,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-28 02:56:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-28 02:56:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-28 02:56:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-11-28 02:56:23,590 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 23 [2020-11-28 02:56:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,591 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-11-28 02:56:23,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2020-11-28 02:56:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 02:56:23,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:23,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,593 INFO L82 PathProgramCache]: Analyzing trace with hash 591672851, now seen corresponding path program 1 times [2020-11-28 02:56:23,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073164438] [2020-11-28 02:56:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,677 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 02:56:23,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073164438] [2020-11-28 02:56:23,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:23,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463973234] [2020-11-28 02:56:23,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:23,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:23,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:23,680 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand 5 states. [2020-11-28 02:56:23,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,802 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2020-11-28 02:56:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:56:23,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-11-28 02:56:23,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,808 INFO L225 Difference]: With dead ends: 91 [2020-11-28 02:56:23,808 INFO L226 Difference]: Without dead ends: 62 [2020-11-28 02:56:23,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-28 02:56:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2020-11-28 02:56:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-28 02:56:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-11-28 02:56:23,816 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 23 [2020-11-28 02:56:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,817 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-28 02:56:23,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2020-11-28 02:56:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 02:56:23,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:23,822 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1557333587, now seen corresponding path program 1 times [2020-11-28 02:56:23,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202932178] [2020-11-28 02:56:23,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,952 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 02:56:23,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202932178] [2020-11-28 02:56:23,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 02:56:23,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207927989] [2020-11-28 02:56:23,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 02:56:23,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 02:56:23,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:23,956 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 7 states. [2020-11-28 02:56:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:24,325 INFO L93 Difference]: Finished difference Result 148 states and 195 transitions. [2020-11-28 02:56:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 02:56:24,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-28 02:56:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:24,328 INFO L225 Difference]: With dead ends: 148 [2020-11-28 02:56:24,328 INFO L226 Difference]: Without dead ends: 102 [2020-11-28 02:56:24,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-11-28 02:56:24,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-28 02:56:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 62. [2020-11-28 02:56:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-28 02:56:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2020-11-28 02:56:24,347 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 23 [2020-11-28 02:56:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:24,348 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2020-11-28 02:56:24,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 02:56:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2020-11-28 02:56:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 02:56:24,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:24,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:24,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:24,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:24,351 INFO L82 PathProgramCache]: Analyzing trace with hash 546216337, now seen corresponding path program 1 times [2020-11-28 02:56:24,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:24,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900220536] [2020-11-28 02:56:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:24,457 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 02:56:24,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900220536] [2020-11-28 02:56:24,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:24,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:56:24,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815951645] [2020-11-28 02:56:24,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:24,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:24,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:24,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:24,460 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand 6 states. [2020-11-28 02:56:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:24,908 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2020-11-28 02:56:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 02:56:24,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-11-28 02:56:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:24,910 INFO L225 Difference]: With dead ends: 105 [2020-11-28 02:56:24,911 INFO L226 Difference]: Without dead ends: 101 [2020-11-28 02:56:24,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 02:56:24,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-28 02:56:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2020-11-28 02:56:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-28 02:56:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 106 transitions. [2020-11-28 02:56:24,932 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 106 transitions. Word has length 23 [2020-11-28 02:56:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:24,933 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 106 transitions. [2020-11-28 02:56:24,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2020-11-28 02:56:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 02:56:24,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:24,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:24,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:24,937 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:24,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1564224654, now seen corresponding path program 1 times [2020-11-28 02:56:24,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:24,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658279863] [2020-11-28 02:56:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,030 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 02:56:25,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658279863] [2020-11-28 02:56:25,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:25,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:25,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573592446] [2020-11-28 02:56:25,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:56:25,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:56:25,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:56:25,032 INFO L87 Difference]: Start difference. First operand 79 states and 106 transitions. Second operand 4 states. [2020-11-28 02:56:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,070 INFO L93 Difference]: Finished difference Result 132 states and 176 transitions. [2020-11-28 02:56:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:56:25,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-28 02:56:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,073 INFO L225 Difference]: With dead ends: 132 [2020-11-28 02:56:25,074 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 02:56:25,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 02:56:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-28 02:56:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-28 02:56:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2020-11-28 02:56:25,094 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 25 [2020-11-28 02:56:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,095 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2020-11-28 02:56:25,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:56:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2020-11-28 02:56:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 02:56:25,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:25,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:56:25,096 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:25,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:25,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1822390092, now seen corresponding path program 1 times [2020-11-28 02:56:25,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:25,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939943364] [2020-11-28 02:56:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,170 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 02:56:25,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939943364] [2020-11-28 02:56:25,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:25,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:56:25,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822100200] [2020-11-28 02:56:25,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:25,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:25,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:25,173 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand 6 states. [2020-11-28 02:56:25,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,344 INFO L93 Difference]: Finished difference Result 193 states and 249 transitions. [2020-11-28 02:56:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:56:25,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-28 02:56:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,346 INFO L225 Difference]: With dead ends: 193 [2020-11-28 02:56:25,346 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 02:56:25,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:56:25,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 02:56:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 87. [2020-11-28 02:56:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 02:56:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2020-11-28 02:56:25,357 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 25 [2020-11-28 02:56:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,357 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2020-11-28 02:56:25,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2020-11-28 02:56:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 02:56:25,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,359 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:25,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:56:25,360 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:25,360 INFO L82 PathProgramCache]: Analyzing trace with hash 895915798, now seen corresponding path program 1 times [2020-11-28 02:56:25,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:25,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895704111] [2020-11-28 02:56:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895704111] [2020-11-28 02:56:25,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907266468] [2020-11-28 02:56:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/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 [2020-11-28 02:56:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:56:25,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:25,609 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:56:25,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-11-28 02:56:25,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27281334] [2020-11-28 02:56:25,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 02:56:25,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 02:56:25,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:25,628 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand 7 states. [2020-11-28 02:56:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,827 INFO L93 Difference]: Finished difference Result 228 states and 281 transitions. [2020-11-28 02:56:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:56:25,828 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-11-28 02:56:25,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,829 INFO L225 Difference]: With dead ends: 228 [2020-11-28 02:56:25,829 INFO L226 Difference]: Without dead ends: 163 [2020-11-28 02:56:25,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:56:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-28 02:56:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 123. [2020-11-28 02:56:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 02:56:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2020-11-28 02:56:25,848 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 30 [2020-11-28 02:56:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,849 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2020-11-28 02:56:25,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 02:56:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2020-11-28 02:56:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:56:25,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,856 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:26,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-28 02:56:26,074 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:26,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:26,075 INFO L82 PathProgramCache]: Analyzing trace with hash 267240844, now seen corresponding path program 2 times [2020-11-28 02:56:26,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:26,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175039792] [2020-11-28 02:56:26,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:26,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175039792] [2020-11-28 02:56:26,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92990417] [2020-11-28 02:56:26,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/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 [2020-11-28 02:56:26,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 02:56:26,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:56:26,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 02:56:26,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:26,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:56:26,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-11-28 02:56:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307721008] [2020-11-28 02:56:26,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-28 02:56:26,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-28 02:56:26,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-11-28 02:56:26,549 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand 17 states. [2020-11-28 02:56:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:27,279 INFO L93 Difference]: Finished difference Result 255 states and 314 transitions. [2020-11-28 02:56:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 02:56:27,280 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-11-28 02:56:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:27,282 INFO L225 Difference]: With dead ends: 255 [2020-11-28 02:56:27,282 INFO L226 Difference]: Without dead ends: 175 [2020-11-28 02:56:27,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-11-28 02:56:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-28 02:56:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 116. [2020-11-28 02:56:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-28 02:56:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2020-11-28 02:56:27,293 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 35 [2020-11-28 02:56:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:27,297 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2020-11-28 02:56:27,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-28 02:56:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-11-28 02:56:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:56:27,299 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:27,299 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:27,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:27,518 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:27,519 INFO L82 PathProgramCache]: Analyzing trace with hash -753827510, now seen corresponding path program 1 times [2020-11-28 02:56:27,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:27,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218167728] [2020-11-28 02:56:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:27,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218167728] [2020-11-28 02:56:27,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773545442] [2020-11-28 02:56:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:27,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 02:56:27,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:27,887 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:27,891 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:27,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:56:27,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-11-28 02:56:27,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215212382] [2020-11-28 02:56:27,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-28 02:56:27,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:27,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 02:56:27,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-28 02:56:27,955 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand 16 states. [2020-11-28 02:56:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:28,525 INFO L93 Difference]: Finished difference Result 226 states and 277 transitions. [2020-11-28 02:56:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-28 02:56:28,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2020-11-28 02:56:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:28,528 INFO L225 Difference]: With dead ends: 226 [2020-11-28 02:56:28,528 INFO L226 Difference]: Without dead ends: 222 [2020-11-28 02:56:28,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-11-28 02:56:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-11-28 02:56:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 135. [2020-11-28 02:56:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-28 02:56:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 175 transitions. [2020-11-28 02:56:28,550 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 175 transitions. Word has length 35 [2020-11-28 02:56:28,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:28,550 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 175 transitions. [2020-11-28 02:56:28,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-28 02:56:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 175 transitions. [2020-11-28 02:56:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:56:28,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:28,551 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:28,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-28 02:56:28,752 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:28,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:28,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1021179852, now seen corresponding path program 1 times [2020-11-28 02:56:28,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:28,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170926803] [2020-11-28 02:56:28,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:28,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:28,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:28,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:28,826 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:28,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 02:56:28,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:28 BoogieIcfgContainer [2020-11-28 02:56:28,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:28,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:28,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:28,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:28,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23" (3/4) ... [2020-11-28 02:56:28,874 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:28,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_23b58819-6ba3-4cba-bae8-7350e318a4ec/bin/uautomizer/witness.graphml [2020-11-28 02:56:28,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:28,983 INFO L168 Benchmark]: Toolchain (without parser) took 7056.55 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 67.7 MB in the beginning and 96.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:28,984 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:28,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.34 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 75.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:28,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.11 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:28,986 INFO L168 Benchmark]: Boogie Preprocessor took 50.19 ms. Allocated memory is still 100.7 MB. Free memory was 72.9 MB in the beginning and 71.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:28,986 INFO L168 Benchmark]: RCFGBuilder took 614.76 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 51.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:28,987 INFO L168 Benchmark]: TraceAbstraction took 5861.90 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 51.0 MB in the beginning and 99.7 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:28,987 INFO L168 Benchmark]: Witness Printer took 111.18 ms. Allocated memory is still 146.8 MB. Free memory was 99.7 MB in the beginning and 96.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:28,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.34 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 75.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.11 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.19 ms. Allocated memory is still 100.7 MB. Free memory was 72.9 MB in the beginning and 71.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 614.76 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 51.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5861.90 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 51.0 MB in the beginning and 99.7 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 111.18 ms. Allocated memory is still 146.8 MB. Free memory was 99.7 MB in the beginning and 96.6 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: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] char A [2 + 2 + 4 +1]; [L86] A[2 + 2 + 4] = 0 [L59] int start=0, i=-1, j=-1; [L60] char str2[2]; [L61] COND FALSE !(!str) [L63] i++ [L64] str[i] [L65] case 0: [L80] EXPR str[i] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: [L80] EXPR str[i] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') [L66] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L67] EXPR str[start] [L67] COND FALSE !(str[start] == '"') [L68] j = i-1 [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L69] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L70] (0 < j) && (str[j] == '"') [L70] EXPR str[j] [L70] (0 < j) && (str[j] == '"') [L70] COND FALSE !((0 < j) && (str[j] == '"')) [L71] COND TRUE start<=j [L41] return strncpy(dest,src,n); [L14] COND TRUE !(cond) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "verisec_OpenSER_cases1_stripFullBoth_arr.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 489 SDtfs, 1264 SDslu, 1417 SDs, 0 SdLazy, 1181 SolverSat, 192 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 299 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 37910 SizeOfPredicates, 10 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 0/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...