./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/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 f7047f55ac2887c2060382be67f6b237af9da492 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 14:58:09,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:58:09,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:58:09,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:58:09,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:58:09,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:58:09,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:58:09,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:58:09,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:58:09,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:58:09,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:58:09,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:58:09,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:58:09,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:58:09,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:58:09,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:58:09,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:58:09,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:58:09,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:58:09,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:58:09,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:58:09,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:58:09,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:58:09,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:58:09,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:58:09,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:58:09,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:58:09,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:58:09,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:58:09,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:58:09,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:58:09,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:58:09,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:58:09,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:58:09,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:58:09,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:58:09,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:58:09,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:58:09,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:58:09,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:58:09,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:58:09,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:58:09,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:58:09,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:58:09,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:58:09,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:58:09,975 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:58:09,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:58:09,976 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:58:09,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:58:09,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:58:09,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:58:09,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:58:09,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:58:09,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:58:09,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:58:09,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:58:09,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:58:09,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:58:09,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:58:09,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:58:09,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:58:09,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:58:09,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:58:09,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:58:09,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:58:09,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:58:09,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:58:09,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:58:09,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:58:09,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:58:09,981 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_c9247712-c3f1-4488-8f33-e1b96e59b4bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7047f55ac2887c2060382be67f6b237af9da492 [2020-12-01 14:58:10,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:58:10,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:58:10,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:58:10,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:58:10,310 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:58:10,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-12-01 14:58:10,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/data/6e4f5dd96/3be3d3d4a3cc4181ada378e0a78fc529/FLAGdfb08bd49 [2020-12-01 14:58:11,014 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:58:11,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-12-01 14:58:11,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/data/6e4f5dd96/3be3d3d4a3cc4181ada378e0a78fc529/FLAGdfb08bd49 [2020-12-01 14:58:11,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/data/6e4f5dd96/3be3d3d4a3cc4181ada378e0a78fc529 [2020-12-01 14:58:11,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:58:11,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:58:11,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:11,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:58:11,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:58:11,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7569536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11, skipping insertion in model container [2020-12-01 14:58:11,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:58:11,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:58:11,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:11,716 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:58:11,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:11,800 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:58:11,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11 WrapperNode [2020-12-01 14:58:11,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:11,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:11,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:58:11,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:58:11,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:11,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:58:11,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:58:11,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:58:11,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... [2020-12-01 14:58:11,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:58:11,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:58:11,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:58:11,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:58:11,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/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 [2020-12-01 14:58:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:58:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:58:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:58:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:58:12,239 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-01 14:58:12,982 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-01 14:58:12,983 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-01 14:58:13,001 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:58:13,002 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 14:58:13,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:13 BoogieIcfgContainer [2020-12-01 14:58:13,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:58:13,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:58:13,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:58:13,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:58:13,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:58:11" (1/3) ... [2020-12-01 14:58:13,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb7e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:58:13, skipping insertion in model container [2020-12-01 14:58:13,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:11" (2/3) ... [2020-12-01 14:58:13,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb7e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:58:13, skipping insertion in model container [2020-12-01 14:58:13,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:13" (3/3) ... [2020-12-01 14:58:13,013 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2020-12-01 14:58:13,029 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:58:13,033 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:58:13,043 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:58:13,067 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:58:13,067 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:58:13,067 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:58:13,067 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:58:13,067 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:58:13,067 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:58:13,067 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:58:13,067 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:58:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-12-01 14:58:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 14:58:13,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:13,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:13,092 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:13,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2020-12-01 14:58:13,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:13,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501479580] [2020-12-01 14:58:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:13,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501479580] [2020-12-01 14:58:13,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:13,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:13,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971432193] [2020-12-01 14:58:13,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:13,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:13,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:13,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:13,414 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-12-01 14:58:13,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:13,729 INFO L93 Difference]: Finished difference Result 329 states and 565 transitions. [2020-12-01 14:58:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:13,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-01 14:58:13,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:13,743 INFO L225 Difference]: With dead ends: 329 [2020-12-01 14:58:13,743 INFO L226 Difference]: Without dead ends: 175 [2020-12-01 14:58:13,746 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 [2020-12-01 14:58:13,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-01 14:58:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2020-12-01 14:58:13,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-01 14:58:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 275 transitions. [2020-12-01 14:58:13,800 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 275 transitions. Word has length 44 [2020-12-01 14:58:13,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:13,801 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 275 transitions. [2020-12-01 14:58:13,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 275 transitions. [2020-12-01 14:58:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 14:58:13,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:13,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:13,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:58:13,808 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:13,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:13,809 INFO L82 PathProgramCache]: Analyzing trace with hash -954576436, now seen corresponding path program 1 times [2020-12-01 14:58:13,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:13,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847003462] [2020-12-01 14:58:13,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:13,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847003462] [2020-12-01 14:58:13,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:13,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:13,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678593477] [2020-12-01 14:58:13,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:13,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:13,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:13,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:13,972 INFO L87 Difference]: Start difference. First operand 170 states and 275 transitions. Second operand 3 states. [2020-12-01 14:58:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:14,253 INFO L93 Difference]: Finished difference Result 380 states and 624 transitions. [2020-12-01 14:58:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:14,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-01 14:58:14,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:14,260 INFO L225 Difference]: With dead ends: 380 [2020-12-01 14:58:14,260 INFO L226 Difference]: Without dead ends: 216 [2020-12-01 14:58:14,264 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 [2020-12-01 14:58:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-12-01 14:58:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2020-12-01 14:58:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-12-01 14:58:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 352 transitions. [2020-12-01 14:58:14,289 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 352 transitions. Word has length 45 [2020-12-01 14:58:14,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:14,290 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 352 transitions. [2020-12-01 14:58:14,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 352 transitions. [2020-12-01 14:58:14,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-01 14:58:14,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:14,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-12-01 14:58:14,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:58:14,297 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:14,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2071968837, now seen corresponding path program 1 times [2020-12-01 14:58:14,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:14,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993643041] [2020-12-01 14:58:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:14,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993643041] [2020-12-01 14:58:14,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:14,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:14,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837390949] [2020-12-01 14:58:14,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:14,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:14,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:14,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:14,456 INFO L87 Difference]: Start difference. First operand 211 states and 352 transitions. Second operand 3 states. [2020-12-01 14:58:14,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:14,636 INFO L93 Difference]: Finished difference Result 445 states and 750 transitions. [2020-12-01 14:58:14,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:14,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-01 14:58:14,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:14,638 INFO L225 Difference]: With dead ends: 445 [2020-12-01 14:58:14,638 INFO L226 Difference]: Without dead ends: 242 [2020-12-01 14:58:14,641 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 [2020-12-01 14:58:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-01 14:58:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-12-01 14:58:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-12-01 14:58:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2020-12-01 14:58:14,670 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 72 [2020-12-01 14:58:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:14,672 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2020-12-01 14:58:14,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2020-12-01 14:58:14,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 14:58:14,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:14,677 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2020-12-01 14:58:14,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 14:58:14,678 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:14,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:14,678 INFO L82 PathProgramCache]: Analyzing trace with hash -947039589, now seen corresponding path program 1 times [2020-12-01 14:58:14,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:14,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951900447] [2020-12-01 14:58:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:14,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951900447] [2020-12-01 14:58:14,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:14,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:14,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191290412] [2020-12-01 14:58:14,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:14,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:14,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:14,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:14,792 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand 3 states. [2020-12-01 14:58:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:14,923 INFO L93 Difference]: Finished difference Result 493 states and 832 transitions. [2020-12-01 14:58:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:14,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-12-01 14:58:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:14,926 INFO L225 Difference]: With dead ends: 493 [2020-12-01 14:58:14,926 INFO L226 Difference]: Without dead ends: 259 [2020-12-01 14:58:14,927 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 [2020-12-01 14:58:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-01 14:58:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2020-12-01 14:58:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-12-01 14:58:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 431 transitions. [2020-12-01 14:58:14,939 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 431 transitions. Word has length 84 [2020-12-01 14:58:14,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:14,940 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 431 transitions. [2020-12-01 14:58:14,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 431 transitions. [2020-12-01 14:58:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 14:58:14,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:14,941 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:14,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 14:58:14,942 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:14,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1168944985, now seen corresponding path program 1 times [2020-12-01 14:58:14,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:14,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964979156] [2020-12-01 14:58:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:15,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964979156] [2020-12-01 14:58:15,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:15,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:15,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541164084] [2020-12-01 14:58:15,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:15,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:15,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:15,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:15,032 INFO L87 Difference]: Start difference. First operand 257 states and 431 transitions. Second operand 3 states. [2020-12-01 14:58:15,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:15,219 INFO L93 Difference]: Finished difference Result 552 states and 931 transitions. [2020-12-01 14:58:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:15,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-12-01 14:58:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:15,224 INFO L225 Difference]: With dead ends: 552 [2020-12-01 14:58:15,224 INFO L226 Difference]: Without dead ends: 303 [2020-12-01 14:58:15,225 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 [2020-12-01 14:58:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-01 14:58:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-12-01 14:58:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-01 14:58:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 505 transitions. [2020-12-01 14:58:15,237 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 505 transitions. Word has length 84 [2020-12-01 14:58:15,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:15,238 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 505 transitions. [2020-12-01 14:58:15,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 505 transitions. [2020-12-01 14:58:15,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 14:58:15,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:15,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2020-12-01 14:58:15,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 14:58:15,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:15,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2129818626, now seen corresponding path program 1 times [2020-12-01 14:58:15,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:15,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181858085] [2020-12-01 14:58:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:15,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181858085] [2020-12-01 14:58:15,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:15,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:15,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588961359] [2020-12-01 14:58:15,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:15,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:15,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:15,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:15,312 INFO L87 Difference]: Start difference. First operand 299 states and 505 transitions. Second operand 3 states. [2020-12-01 14:58:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:15,456 INFO L93 Difference]: Finished difference Result 592 states and 1000 transitions. [2020-12-01 14:58:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:15,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-01 14:58:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:15,459 INFO L225 Difference]: With dead ends: 592 [2020-12-01 14:58:15,459 INFO L226 Difference]: Without dead ends: 301 [2020-12-01 14:58:15,460 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 [2020-12-01 14:58:15,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-12-01 14:58:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2020-12-01 14:58:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-01 14:58:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 501 transitions. [2020-12-01 14:58:15,478 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 501 transitions. Word has length 85 [2020-12-01 14:58:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:15,481 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 501 transitions. [2020-12-01 14:58:15,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 501 transitions. [2020-12-01 14:58:15,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 14:58:15,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:15,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:15,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 14:58:15,489 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:15,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash -122958423, now seen corresponding path program 1 times [2020-12-01 14:58:15,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:15,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948310460] [2020-12-01 14:58:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:15,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948310460] [2020-12-01 14:58:15,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:15,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:15,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466818757] [2020-12-01 14:58:15,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:15,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:15,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:15,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:15,571 INFO L87 Difference]: Start difference. First operand 299 states and 501 transitions. Second operand 3 states. [2020-12-01 14:58:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:15,811 INFO L93 Difference]: Finished difference Result 594 states and 995 transitions. [2020-12-01 14:58:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:15,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-01 14:58:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:15,815 INFO L225 Difference]: With dead ends: 594 [2020-12-01 14:58:15,815 INFO L226 Difference]: Without dead ends: 301 [2020-12-01 14:58:15,816 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 [2020-12-01 14:58:15,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-12-01 14:58:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2020-12-01 14:58:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-01 14:58:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 496 transitions. [2020-12-01 14:58:15,831 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 496 transitions. Word has length 85 [2020-12-01 14:58:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:15,831 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 496 transitions. [2020-12-01 14:58:15,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 496 transitions. [2020-12-01 14:58:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-01 14:58:15,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:15,833 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:15,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 14:58:15,833 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:15,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1553184093, now seen corresponding path program 1 times [2020-12-01 14:58:15,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:15,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458618676] [2020-12-01 14:58:15,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-01 14:58:15,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458618676] [2020-12-01 14:58:15,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:15,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:15,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179708397] [2020-12-01 14:58:15,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:15,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:15,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:15,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:15,896 INFO L87 Difference]: Start difference. First operand 297 states and 496 transitions. Second operand 3 states. [2020-12-01 14:58:16,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:16,046 INFO L93 Difference]: Finished difference Result 595 states and 992 transitions. [2020-12-01 14:58:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:16,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-01 14:58:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:16,049 INFO L225 Difference]: With dead ends: 595 [2020-12-01 14:58:16,049 INFO L226 Difference]: Without dead ends: 306 [2020-12-01 14:58:16,050 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 [2020-12-01 14:58:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-12-01 14:58:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-12-01 14:58:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-12-01 14:58:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 502 transitions. [2020-12-01 14:58:16,064 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 502 transitions. Word has length 97 [2020-12-01 14:58:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:16,064 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 502 transitions. [2020-12-01 14:58:16,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 502 transitions. [2020-12-01 14:58:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-01 14:58:16,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:16,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-12-01 14:58:16,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 14:58:16,066 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:16,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2083521026, now seen corresponding path program 1 times [2020-12-01 14:58:16,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:16,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910338379] [2020-12-01 14:58:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:16,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910338379] [2020-12-01 14:58:16,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:16,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:16,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191907490] [2020-12-01 14:58:16,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:16,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:16,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:16,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:16,148 INFO L87 Difference]: Start difference. First operand 306 states and 502 transitions. Second operand 3 states. [2020-12-01 14:58:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:16,337 INFO L93 Difference]: Finished difference Result 635 states and 1045 transitions. [2020-12-01 14:58:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:16,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-01 14:58:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:16,340 INFO L225 Difference]: With dead ends: 635 [2020-12-01 14:58:16,340 INFO L226 Difference]: Without dead ends: 337 [2020-12-01 14:58:16,341 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 [2020-12-01 14:58:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-12-01 14:58:16,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-12-01 14:58:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-12-01 14:58:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 549 transitions. [2020-12-01 14:58:16,353 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 549 transitions. Word has length 98 [2020-12-01 14:58:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:16,353 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 549 transitions. [2020-12-01 14:58:16,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 549 transitions. [2020-12-01 14:58:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 14:58:16,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:16,355 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-12-01 14:58:16,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 14:58:16,356 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:16,356 INFO L82 PathProgramCache]: Analyzing trace with hash -102460539, now seen corresponding path program 1 times [2020-12-01 14:58:16,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:16,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364252681] [2020-12-01 14:58:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:16,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364252681] [2020-12-01 14:58:16,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:16,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:16,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308272567] [2020-12-01 14:58:16,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:16,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:16,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:16,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:16,397 INFO L87 Difference]: Start difference. First operand 335 states and 549 transitions. Second operand 3 states. [2020-12-01 14:58:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:16,604 INFO L93 Difference]: Finished difference Result 664 states and 1088 transitions. [2020-12-01 14:58:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:16,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-01 14:58:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:16,607 INFO L225 Difference]: With dead ends: 664 [2020-12-01 14:58:16,607 INFO L226 Difference]: Without dead ends: 337 [2020-12-01 14:58:16,608 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 [2020-12-01 14:58:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-12-01 14:58:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-12-01 14:58:16,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-12-01 14:58:16,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 545 transitions. [2020-12-01 14:58:16,622 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 545 transitions. Word has length 99 [2020-12-01 14:58:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:16,623 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 545 transitions. [2020-12-01 14:58:16,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 545 transitions. [2020-12-01 14:58:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-01 14:58:16,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:16,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:16,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 14:58:16,625 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:16,626 INFO L82 PathProgramCache]: Analyzing trace with hash -651386898, now seen corresponding path program 1 times [2020-12-01 14:58:16,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:16,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366920317] [2020-12-01 14:58:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:16,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366920317] [2020-12-01 14:58:16,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:16,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:16,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225785278] [2020-12-01 14:58:16,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:16,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:16,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:16,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:16,688 INFO L87 Difference]: Start difference. First operand 335 states and 545 transitions. Second operand 3 states. [2020-12-01 14:58:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:16,872 INFO L93 Difference]: Finished difference Result 697 states and 1138 transitions. [2020-12-01 14:58:16,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:16,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-01 14:58:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:16,875 INFO L225 Difference]: With dead ends: 697 [2020-12-01 14:58:16,876 INFO L226 Difference]: Without dead ends: 370 [2020-12-01 14:58:16,877 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 [2020-12-01 14:58:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-12-01 14:58:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2020-12-01 14:58:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-12-01 14:58:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 587 transitions. [2020-12-01 14:58:16,891 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 587 transitions. Word has length 100 [2020-12-01 14:58:16,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:16,892 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 587 transitions. [2020-12-01 14:58:16,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 587 transitions. [2020-12-01 14:58:16,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 14:58:16,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:16,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:16,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 14:58:16,894 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1258189035, now seen corresponding path program 1 times [2020-12-01 14:58:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:16,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937948557] [2020-12-01 14:58:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:16,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937948557] [2020-12-01 14:58:16,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:16,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:16,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601967190] [2020-12-01 14:58:16,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:16,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:16,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:16,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:16,945 INFO L87 Difference]: Start difference. First operand 362 states and 587 transitions. Second operand 3 states. [2020-12-01 14:58:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:17,133 INFO L93 Difference]: Finished difference Result 724 states and 1175 transitions. [2020-12-01 14:58:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:17,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-01 14:58:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:17,136 INFO L225 Difference]: With dead ends: 724 [2020-12-01 14:58:17,137 INFO L226 Difference]: Without dead ends: 370 [2020-12-01 14:58:17,137 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 [2020-12-01 14:58:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-12-01 14:58:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2020-12-01 14:58:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-12-01 14:58:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 582 transitions. [2020-12-01 14:58:17,155 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 582 transitions. Word has length 101 [2020-12-01 14:58:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:17,156 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 582 transitions. [2020-12-01 14:58:17,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 582 transitions. [2020-12-01 14:58:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-01 14:58:17,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:17,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:17,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 14:58:17,158 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:17,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1027805126, now seen corresponding path program 1 times [2020-12-01 14:58:17,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:17,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687580985] [2020-12-01 14:58:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 14:58:17,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687580985] [2020-12-01 14:58:17,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:17,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:17,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236029779] [2020-12-01 14:58:17,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:17,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:17,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:17,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:17,210 INFO L87 Difference]: Start difference. First operand 362 states and 582 transitions. Second operand 3 states. [2020-12-01 14:58:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:17,376 INFO L93 Difference]: Finished difference Result 742 states and 1195 transitions. [2020-12-01 14:58:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:17,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-01 14:58:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:17,379 INFO L225 Difference]: With dead ends: 742 [2020-12-01 14:58:17,380 INFO L226 Difference]: Without dead ends: 388 [2020-12-01 14:58:17,380 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 [2020-12-01 14:58:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-12-01 14:58:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2020-12-01 14:58:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-12-01 14:58:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 611 transitions. [2020-12-01 14:58:17,397 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 611 transitions. Word has length 105 [2020-12-01 14:58:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:17,397 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 611 transitions. [2020-12-01 14:58:17,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 611 transitions. [2020-12-01 14:58:17,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-01 14:58:17,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:17,399 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:17,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 14:58:17,399 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:17,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1570072403, now seen corresponding path program 1 times [2020-12-01 14:58:17,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:17,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897171618] [2020-12-01 14:58:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 14:58:17,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897171618] [2020-12-01 14:58:17,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:17,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:17,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900994023] [2020-12-01 14:58:17,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:17,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:17,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:17,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:17,456 INFO L87 Difference]: Start difference. First operand 383 states and 611 transitions. Second operand 3 states. [2020-12-01 14:58:17,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:17,643 INFO L93 Difference]: Finished difference Result 763 states and 1218 transitions. [2020-12-01 14:58:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:17,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-01 14:58:17,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:17,647 INFO L225 Difference]: With dead ends: 763 [2020-12-01 14:58:17,647 INFO L226 Difference]: Without dead ends: 388 [2020-12-01 14:58:17,648 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 [2020-12-01 14:58:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-12-01 14:58:17,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2020-12-01 14:58:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-12-01 14:58:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 605 transitions. [2020-12-01 14:58:17,664 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 605 transitions. Word has length 106 [2020-12-01 14:58:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:17,664 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 605 transitions. [2020-12-01 14:58:17,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 605 transitions. [2020-12-01 14:58:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-01 14:58:17,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:17,667 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2020-12-01 14:58:17,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 14:58:17,667 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:17,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:17,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1383340250, now seen corresponding path program 1 times [2020-12-01 14:58:17,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:17,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002643293] [2020-12-01 14:58:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:17,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:17,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:17,817 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:17,817 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 14:58:17,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 14:58:17,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:58:17 BoogieIcfgContainer [2020-12-01 14:58:17,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:58:17,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:58:17,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:58:17,953 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:58:17,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:13" (3/4) ... [2020-12-01 14:58:17,956 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 14:58:18,078 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c9247712-c3f1-4488-8f33-e1b96e59b4bc/bin/uautomizer/witness.graphml [2020-12-01 14:58:18,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:58:18,080 INFO L168 Benchmark]: Toolchain (without parser) took 6769.39 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 62.2 MB in the beginning and 70.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,080 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:58:18,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 64.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.15 ms. Allocated memory is still 92.3 MB. Free memory was 64.5 MB in the beginning and 61.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,082 INFO L168 Benchmark]: Boogie Preprocessor took 38.91 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 59.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,082 INFO L168 Benchmark]: RCFGBuilder took 1073.27 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.3 MB in the beginning and 82.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,085 INFO L168 Benchmark]: TraceAbstraction took 4946.42 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 81.3 MB in the beginning and 85.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,086 INFO L168 Benchmark]: Witness Printer took 125.13 ms. Allocated memory is still 167.8 MB. Free memory was 85.0 MB in the beginning and 70.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:18,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 64.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.15 ms. Allocated memory is still 92.3 MB. Free memory was 64.5 MB in the beginning and 61.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.91 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 59.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1073.27 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.3 MB in the beginning and 82.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4946.42 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 81.3 MB in the beginning and 85.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. * Witness Printer took 125.13 ms. Allocated memory is still 167.8 MB. Free memory was 85.0 MB in the beginning and 70.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L614] int s ; [L615] int tmp ; [L619] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp ; [L47] int cb ; [L48] long num1 = __VERIFIER_nondet_long() ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int tmp___10 = __VERIFIER_nondet_int() ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] tmp = __VERIFIER_nondet_int() [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 + 12288) [L96] COND FALSE !(s__cert == 0) [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND TRUE s__state == 8464 [L273] s__shutdown = 0 [L274] ret = __VERIFIER_nondet_int() [L275] COND TRUE blastFlag == 0 [L276] blastFlag = 1 [L278] COND FALSE !(ret <= 0) [L281] got_new_session = 1 [L282] s__state = 8496 [L283] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND TRUE s__state == 8496 [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 1 [L289] blastFlag = 2 [L295] COND FALSE !(ret <= 0) [L298] COND TRUE \read(s__hit) [L299] s__state = 8656 [L303] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND TRUE s__state == 8656 [L492] s__session__cipher = s__s3__tmp__new_cipher [L493] COND FALSE !(! tmp___9) [L497] ret = __VERIFIER_nondet_int() [L498] COND TRUE blastFlag == 2 [L499] blastFlag = 3 [L501] COND FALSE !(ret <= 0) [L504] s__state = 8672 [L505] s__init_num = 0 [L506] COND FALSE !(! tmp___10) [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND FALSE !(s__state == 8656) [L196] COND FALSE !(s__state == 8657) [L199] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_2.cil-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1835 SDtfs, 2038 SDslu, 248 SDs, 0 SdLazy, 1321 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 52 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1326 NumberOfCodeBlocks, 1326 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1191 ConstructedInterpolants, 0 QuantifiedInterpolants, 191664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 636/636 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...