./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/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 f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/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 f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:09:47,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:47,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:47,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:47,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:47,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:47,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:47,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:47,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:47,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:47,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:47,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:47,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:47,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:47,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:47,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:47,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:47,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:47,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:47,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:47,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:47,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:47,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:47,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:47,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:47,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:47,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:47,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:47,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:47,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:47,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:47,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:47,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:47,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:47,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:47,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:47,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:47,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:47,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:47,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:47,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:47,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:09:47,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:47,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:47,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:47,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:47,844 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:47,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:47,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:47,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:47,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:47,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:47,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:09:47,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:47,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:09:47,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:47,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:47,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:47,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:09:47,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:47,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:47,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:47,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:47,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:47,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:47,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:47,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:09:47,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:47,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:09:47,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:09:47,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:47,850 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_7e04e265-d48d-4bcb-959f-ba53a7534d04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 [2020-11-28 03:09:48,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:48,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:48,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:48,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:48,128 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:48,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:48,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/60ee5497e/bcb4937cfe714d698299792c518a03f8/FLAG496edaf4c [2020-11-28 03:09:48,812 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:48,813 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:48,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/60ee5497e/bcb4937cfe714d698299792c518a03f8/FLAG496edaf4c [2020-11-28 03:09:49,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/60ee5497e/bcb4937cfe714d698299792c518a03f8 [2020-11-28 03:09:49,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:49,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:49,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:49,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:49,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:49,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f395f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49, skipping insertion in model container [2020-11-28 03:09:49,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:49,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:49,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:49,521 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:49,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:49,593 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:49,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49 WrapperNode [2020-11-28 03:09:49,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:49,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:49,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:49,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:49,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:49,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:49,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:49,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:49,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:49,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:49,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:49,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:49,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:49,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:50,138 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:09:50,923 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-28 03:09:50,923 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-28 03:09:50,931 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:50,931 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:09:50,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:50 BoogieIcfgContainer [2020-11-28 03:09:50,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:50,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:50,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:50,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:50,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:49" (1/3) ... [2020-11-28 03:09:50,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444d39bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:50, skipping insertion in model container [2020-11-28 03:09:50,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (2/3) ... [2020-11-28 03:09:50,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444d39bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:50, skipping insertion in model container [2020-11-28 03:09:50,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:50" (3/3) ... [2020-11-28 03:09:50,948 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:50,961 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:50,967 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:09:50,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:09:51,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:51,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:09:51,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:51,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:51,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:51,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:51,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:51,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-11-28 03:09:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:09:51,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:51,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:51,059 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:51,064 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2020-11-28 03:09:51,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:51,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774651151] [2020-11-28 03:09:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:51,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774651151] [2020-11-28 03:09:51,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:51,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:51,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209061161] [2020-11-28 03:09:51,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:51,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:51,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:51,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:51,385 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-11-28 03:09:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:51,687 INFO L93 Difference]: Finished difference Result 248 states and 424 transitions. [2020-11-28 03:09:51,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:51,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:09:51,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:51,711 INFO L225 Difference]: With dead ends: 248 [2020-11-28 03:09:51,711 INFO L226 Difference]: Without dead ends: 113 [2020-11-28 03:09:51,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-28 03:09:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-28 03:09:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:09:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2020-11-28 03:09:51,783 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2020-11-28 03:09:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:51,783 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2020-11-28 03:09:51,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2020-11-28 03:09:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:09:51,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:51,788 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:09:51,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:09:51,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:51,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2020-11-28 03:09:51,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:51,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071728381] [2020-11-28 03:09:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:51,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071728381] [2020-11-28 03:09:51,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:51,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:51,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383494184] [2020-11-28 03:09:51,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:51,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:51,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:51,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:51,911 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2020-11-28 03:09:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:52,171 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-11-28 03:09:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:52,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-28 03:09:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:52,174 INFO L225 Difference]: With dead ends: 233 [2020-11-28 03:09:52,174 INFO L226 Difference]: Without dead ends: 131 [2020-11-28 03:09:52,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-28 03:09:52,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-11-28 03:09:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-28 03:09:52,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2020-11-28 03:09:52,202 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2020-11-28 03:09:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:52,203 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2020-11-28 03:09:52,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2020-11-28 03:09:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:09:52,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:52,205 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-28 03:09:52,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:09:52,206 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2020-11-28 03:09:52,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:52,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347339528] [2020-11-28 03:09:52,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:09:52,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347339528] [2020-11-28 03:09:52,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:52,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:52,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736443029] [2020-11-28 03:09:52,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:52,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:52,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:52,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,378 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2020-11-28 03:09:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:52,406 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2020-11-28 03:09:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:52,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:09:52,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:52,410 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:09:52,410 INFO L226 Difference]: Without dead ends: 154 [2020-11-28 03:09:52,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-28 03:09:52,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-28 03:09:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-28 03:09:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2020-11-28 03:09:52,434 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2020-11-28 03:09:52,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:52,434 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2020-11-28 03:09:52,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2020-11-28 03:09:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:09:52,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:52,437 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-28 03:09:52,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:09:52,437 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:52,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:52,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2020-11-28 03:09:52,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:52,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867460993] [2020-11-28 03:09:52,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:09:52,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867460993] [2020-11-28 03:09:52,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:52,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:52,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486263218] [2020-11-28 03:09:52,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:52,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:52,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:52,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,551 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2020-11-28 03:09:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:52,727 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2020-11-28 03:09:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:52,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:09:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:52,729 INFO L225 Difference]: With dead ends: 292 [2020-11-28 03:09:52,729 INFO L226 Difference]: Without dead ends: 175 [2020-11-28 03:09:52,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-28 03:09:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-11-28 03:09:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-28 03:09:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2020-11-28 03:09:52,740 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2020-11-28 03:09:52,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:52,741 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2020-11-28 03:09:52,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2020-11-28 03:09:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:09:52,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:52,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:09:52,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:09:52,753 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:52,754 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2020-11-28 03:09:52,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:52,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481073245] [2020-11-28 03:09:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:52,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:52,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:52,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:52,954 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:52,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:09:53,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:53 BoogieIcfgContainer [2020-11-28 03:09:53,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:53,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:53,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:53,068 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:53,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:50" (3/4) ... [2020-11-28 03:09:53,072 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:53,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:53,075 INFO L168 Benchmark]: Toolchain (without parser) took 3902.70 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 51.1 MB in the beginning and 77.3 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:53,075 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:53,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.81 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 50.9 MB in the beginning and 77.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.51 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,084 INFO L168 Benchmark]: Boogie Preprocessor took 48.03 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,085 INFO L168 Benchmark]: RCFGBuilder took 1213.05 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 75.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,086 INFO L168 Benchmark]: TraceAbstraction took 2126.68 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 77.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,086 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 104.9 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:53,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 419.81 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 50.9 MB in the beginning and 77.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.51 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.03 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1213.05 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 75.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2126.68 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 77.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 104.9 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 303. Possible FailurePath: [L625] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int ag_Z ; [L66] int __retres60 ; [L69] s__state = 12292 [L70] blastFlag = 0 [L71] tmp = __VERIFIER_nondet_int() [L72] cb = 0 [L73] ret = -1 [L74] skip = 0 [L75] tmp___0 = 0 [L76] COND TRUE s__info_callback != 0 [L77] cb = s__info_callback [L85] s__in_handshake = s__in_handshake + 1 [L86] COND FALSE !(tmp___1 + 12288) [L95] COND TRUE \read(s__hit) [L96] ag_Y = 208 [L101] COND TRUE 1 [L103] state = s__state [L104] COND TRUE s__state == 12292 [L207] s__new_session = 1 [L208] s__state = 4096 [L209] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L214] s__server = 0 [L215] COND TRUE cb != 0 [L220] COND FALSE !(s__version + 65280 != 768) [L226] s__type = 4096 [L227] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L245] COND FALSE !(! tmp___4) [L251] COND FALSE !(! tmp___5) [L257] s__state = 4368 [L258] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L259] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND TRUE s__state == 4368 [L263] s__shutdown = 0 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 0 [L266] blastFlag = 1 [L270] COND FALSE !(ret <= 0) [L275] s__state = 4384 [L276] ag_X = s__state - 32 [L277] s__init_num = 0 [L278] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND TRUE s__state == 4384 [L286] ret = __VERIFIER_nondet_int() [L287] COND TRUE blastFlag == 1 [L288] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L301] s__state = ag_X [L302] COND TRUE \read(s__hit) [L303] s__state = s__state | ag_Y [L307] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND FALSE !(s__state == 4400) [L134] COND FALSE !(s__state == 4401) [L137] COND FALSE !(s__state == 4416) [L140] COND FALSE !(s__state == 4417) [L143] COND TRUE s__state == 4432 [L353] ret = __VERIFIER_nondet_int() [L354] COND TRUE blastFlag <= 5 [L3] __assert_fail("0", "s3_clnt_3.BV.c.cil-2a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 714 SDtfs, 58 SDslu, 412 SDs, 0 SdLazy, 296 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 11828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 35/35 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:09:55,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:55,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:55,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:55,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:55,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:55,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:55,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:55,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:55,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:55,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:55,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:55,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:55,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:55,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:55,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:55,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:55,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:55,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:55,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:55,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:55,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:55,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:55,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:55,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:55,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:55,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:55,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:55,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:55,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:55,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:55,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:55,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:55,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:55,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:55,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:55,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:55,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:55,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:55,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:55,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:55,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:09:55,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:55,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:55,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:55,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:55,837 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:55,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:55,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:55,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:55,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:55,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:09:55,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:55,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:09:55,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:09:55,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:09:55,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:55,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:55,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:55,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:09:55,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:55,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:55,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:55,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:55,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:55,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:55,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:55,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:09:55,842 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:09:55,842 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:09:55,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:09:55,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:55,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:09:55,843 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 [2020-11-28 03:09:56,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:56,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:56,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:56,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:56,320 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:56,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:56,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/7ea37055e/fbabee264d9a4be980d35bbb170aa487/FLAG05adf31ad [2020-11-28 03:09:56,982 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:56,982 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:57,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/7ea37055e/fbabee264d9a4be980d35bbb170aa487/FLAG05adf31ad [2020-11-28 03:09:57,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/data/7ea37055e/fbabee264d9a4be980d35bbb170aa487 [2020-11-28 03:09:57,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:57,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:57,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:57,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:57,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:57,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c394bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57, skipping insertion in model container [2020-11-28 03:09:57,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:57,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:57,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:57,729 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:57,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:57,854 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:57,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57 WrapperNode [2020-11-28 03:09:57,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:57,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:57,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:57,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:57,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:57,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:57,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:57,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:57,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... [2020-11-28 03:09:57,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:57,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:57,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:57,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:57,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:09:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:58,206 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:09:58,964 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-28 03:09:58,964 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-28 03:09:58,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:58,974 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:09:58,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:58 BoogieIcfgContainer [2020-11-28 03:09:58,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:58,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:58,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:58,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:58,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:57" (1/3) ... [2020-11-28 03:09:58,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbd57c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:58, skipping insertion in model container [2020-11-28 03:09:58,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:57" (2/3) ... [2020-11-28 03:09:58,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbd57c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:58, skipping insertion in model container [2020-11-28 03:09:58,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:58" (3/3) ... [2020-11-28 03:09:58,987 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-11-28 03:09:58,999 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:59,005 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:09:59,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:09:59,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:59,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:09:59,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:59,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:59,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:59,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:59,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:59,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-11-28 03:09:59,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:09:59,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:59,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:59,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2020-11-28 03:09:59,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:59,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525436764] [2020-11-28 03:09:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:59,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:59,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:59,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:59,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:59,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525436764] [2020-11-28 03:09:59,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:59,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:09:59,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132150075] [2020-11-28 03:09:59,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:59,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:59,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:59,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:59,418 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-11-28 03:09:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:59,726 INFO L93 Difference]: Finished difference Result 248 states and 424 transitions. [2020-11-28 03:09:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:59,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:09:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:59,745 INFO L225 Difference]: With dead ends: 248 [2020-11-28 03:09:59,746 INFO L226 Difference]: Without dead ends: 113 [2020-11-28 03:09:59,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-28 03:09:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-28 03:09:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:09:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2020-11-28 03:09:59,820 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2020-11-28 03:09:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:59,821 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2020-11-28 03:09:59,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2020-11-28 03:09:59,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:09:59,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:59,826 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:10:00,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:10:00,041 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2020-11-28 03:10:00,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:00,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779065702] [2020-11-28 03:10:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:00,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:00,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:00,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:00,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779065702] [2020-11-28 03:10:00,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:00,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:00,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869857711] [2020-11-28 03:10:00,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:00,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:00,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:00,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,186 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2020-11-28 03:10:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:00,404 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-11-28 03:10:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:00,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-28 03:10:00,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:00,407 INFO L225 Difference]: With dead ends: 233 [2020-11-28 03:10:00,407 INFO L226 Difference]: Without dead ends: 131 [2020-11-28 03:10:00,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-28 03:10:00,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-11-28 03:10:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-28 03:10:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2020-11-28 03:10:00,429 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2020-11-28 03:10:00,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:00,430 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2020-11-28 03:10:00,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:00,430 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2020-11-28 03:10:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:10:00,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:00,439 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-28 03:10:00,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:10:00,660 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2020-11-28 03:10:00,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:00,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981482449] [2020-11-28 03:10:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:00,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:00,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:00,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:00,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981482449] [2020-11-28 03:10:00,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:00,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:00,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71359105] [2020-11-28 03:10:00,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:00,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:00,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:00,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,790 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2020-11-28 03:10:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:00,821 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2020-11-28 03:10:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:00,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:10:00,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:00,825 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:10:00,825 INFO L226 Difference]: Without dead ends: 154 [2020-11-28 03:10:00,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-28 03:10:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-28 03:10:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-28 03:10:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2020-11-28 03:10:00,839 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2020-11-28 03:10:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:00,840 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2020-11-28 03:10:00,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2020-11-28 03:10:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:10:00,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:00,842 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-28 03:10:01,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:10:01,060 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2020-11-28 03:10:01,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:01,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782818665] [2020-11-28 03:10:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:01,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:01,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:01,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:01,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782818665] [2020-11-28 03:10:01,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:01,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:01,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654411199] [2020-11-28 03:10:01,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:01,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:01,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:01,222 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2020-11-28 03:10:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:01,451 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2020-11-28 03:10:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:01,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:10:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:01,454 INFO L225 Difference]: With dead ends: 292 [2020-11-28 03:10:01,454 INFO L226 Difference]: Without dead ends: 175 [2020-11-28 03:10:01,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-28 03:10:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-11-28 03:10:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-28 03:10:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2020-11-28 03:10:01,469 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2020-11-28 03:10:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:01,471 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2020-11-28 03:10:01,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2020-11-28 03:10:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:10:01,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:01,480 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:10:01,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:10:01,693 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:01,693 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2020-11-28 03:10:01,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:01,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772294536] [2020-11-28 03:10:01,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:01,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:10:01,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:01,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:02,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772294536] [2020-11-28 03:10:02,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:10:02,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-28 03:10:02,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603965180] [2020-11-28 03:10:02,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:02,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:02,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:02,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:02,188 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 6 states. [2020-11-28 03:10:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:03,092 INFO L93 Difference]: Finished difference Result 566 states and 848 transitions. [2020-11-28 03:10:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:10:03,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-11-28 03:10:03,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:03,096 INFO L225 Difference]: With dead ends: 566 [2020-11-28 03:10:03,096 INFO L226 Difference]: Without dead ends: 431 [2020-11-28 03:10:03,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:10:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-11-28 03:10:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2020-11-28 03:10:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-11-28 03:10:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 607 transitions. [2020-11-28 03:10:03,127 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 607 transitions. Word has length 68 [2020-11-28 03:10:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:03,128 INFO L481 AbstractCegarLoop]: Abstraction has 419 states and 607 transitions. [2020-11-28 03:10:03,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 607 transitions. [2020-11-28 03:10:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:10:03,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:03,130 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:10:03,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:10:03,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:03,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:03,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2031900493, now seen corresponding path program 1 times [2020-11-28 03:10:03,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:03,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634806063] [2020-11-28 03:10:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:03,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:03,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:03,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:03,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634806063] [2020-11-28 03:10:03,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:03,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:03,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986285540] [2020-11-28 03:10:03,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:03,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:03,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:03,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:03,545 INFO L87 Difference]: Start difference. First operand 419 states and 607 transitions. Second operand 3 states. [2020-11-28 03:10:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:03,610 INFO L93 Difference]: Finished difference Result 927 states and 1364 transitions. [2020-11-28 03:10:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:03,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:10:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:03,615 INFO L225 Difference]: With dead ends: 927 [2020-11-28 03:10:03,615 INFO L226 Difference]: Without dead ends: 574 [2020-11-28 03:10:03,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-11-28 03:10:03,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 572. [2020-11-28 03:10:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-11-28 03:10:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 835 transitions. [2020-11-28 03:10:03,654 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 835 transitions. Word has length 68 [2020-11-28 03:10:03,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:03,654 INFO L481 AbstractCegarLoop]: Abstraction has 572 states and 835 transitions. [2020-11-28 03:10:03,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 835 transitions. [2020-11-28 03:10:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:10:03,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:03,657 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:10:03,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 03:10:03,870 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:03,870 INFO L82 PathProgramCache]: Analyzing trace with hash -875025075, now seen corresponding path program 1 times [2020-11-28 03:10:03,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:03,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251864400] [2020-11-28 03:10:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:03,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:03,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:03,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:10:04,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251864400] [2020-11-28 03:10:04,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:04,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:04,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006983734] [2020-11-28 03:10:04,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:04,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:04,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:04,011 INFO L87 Difference]: Start difference. First operand 572 states and 835 transitions. Second operand 3 states. [2020-11-28 03:10:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:04,050 INFO L93 Difference]: Finished difference Result 576 states and 837 transitions. [2020-11-28 03:10:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:04,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:10:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:04,054 INFO L225 Difference]: With dead ends: 576 [2020-11-28 03:10:04,054 INFO L226 Difference]: Without dead ends: 419 [2020-11-28 03:10:04,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-11-28 03:10:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417. [2020-11-28 03:10:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-11-28 03:10:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 598 transitions. [2020-11-28 03:10:04,072 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 598 transitions. Word has length 68 [2020-11-28 03:10:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:04,073 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 598 transitions. [2020-11-28 03:10:04,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 598 transitions. [2020-11-28 03:10:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:10:04,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:04,075 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:10:04,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-28 03:10:04,290 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:04,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:04,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1614503887, now seen corresponding path program 1 times [2020-11-28 03:10:04,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:04,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897309455] [2020-11-28 03:10:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:04,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:10:04,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:04,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:04,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897309455] [2020-11-28 03:10:04,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:10:04,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-11-28 03:10:04,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442247619] [2020-11-28 03:10:04,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:10:04,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:04,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:10:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:10:04,631 INFO L87 Difference]: Start difference. First operand 417 states and 598 transitions. Second operand 12 states. [2020-11-28 03:10:06,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:06,068 INFO L93 Difference]: Finished difference Result 855 states and 1264 transitions. [2020-11-28 03:10:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-28 03:10:06,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-11-28 03:10:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:06,074 INFO L225 Difference]: With dead ends: 855 [2020-11-28 03:10:06,074 INFO L226 Difference]: Without dead ends: 699 [2020-11-28 03:10:06,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2020-11-28 03:10:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-11-28 03:10:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 476. [2020-11-28 03:10:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-11-28 03:10:06,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 667 transitions. [2020-11-28 03:10:06,098 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 667 transitions. Word has length 68 [2020-11-28 03:10:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:06,099 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 667 transitions. [2020-11-28 03:10:06,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:10:06,099 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 667 transitions. [2020-11-28 03:10:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-28 03:10:06,100 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:06,101 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1] [2020-11-28 03:10:06,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-28 03:10:06,310 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1844660206, now seen corresponding path program 1 times [2020-11-28 03:10:06,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:06,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544584029] [2020-11-28 03:10:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:06,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:06,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-28 03:10:06,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-28 03:10:06,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544584029] [2020-11-28 03:10:06,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:06,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:10:06,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969207065] [2020-11-28 03:10:06,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:06,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:06,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:06,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:06,458 INFO L87 Difference]: Start difference. First operand 476 states and 667 transitions. Second operand 3 states. [2020-11-28 03:10:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:06,704 INFO L93 Difference]: Finished difference Result 934 states and 1333 transitions. [2020-11-28 03:10:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:06,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-28 03:10:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:06,709 INFO L225 Difference]: With dead ends: 934 [2020-11-28 03:10:06,709 INFO L226 Difference]: Without dead ends: 524 [2020-11-28 03:10:06,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-11-28 03:10:06,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 518. [2020-11-28 03:10:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-11-28 03:10:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 719 transitions. [2020-11-28 03:10:06,736 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 719 transitions. Word has length 85 [2020-11-28 03:10:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:06,737 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 719 transitions. [2020-11-28 03:10:06,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:06,737 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 719 transitions. [2020-11-28 03:10:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:10:06,739 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:06,739 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1] [2020-11-28 03:10:06,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-28 03:10:06,958 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:06,959 INFO L82 PathProgramCache]: Analyzing trace with hash 2022672797, now seen corresponding path program 1 times [2020-11-28 03:10:06,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:06,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235418566] [2020-11-28 03:10:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:07,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:07,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:10:07,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:10:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:10:07,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235418566] [2020-11-28 03:10:07,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:07,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 03:10:07,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212046081] [2020-11-28 03:10:07,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:07,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:10:07,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:07,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:07,136 INFO L87 Difference]: Start difference. First operand 518 states and 719 transitions. Second operand 4 states. [2020-11-28 03:10:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:07,233 INFO L93 Difference]: Finished difference Result 1468 states and 2045 transitions. [2020-11-28 03:10:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:07,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2020-11-28 03:10:07,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:07,242 INFO L225 Difference]: With dead ends: 1468 [2020-11-28 03:10:07,242 INFO L226 Difference]: Without dead ends: 1016 [2020-11-28 03:10:07,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2020-11-28 03:10:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1012. [2020-11-28 03:10:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-11-28 03:10:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1394 transitions. [2020-11-28 03:10:07,298 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1394 transitions. Word has length 104 [2020-11-28 03:10:07,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:07,298 INFO L481 AbstractCegarLoop]: Abstraction has 1012 states and 1394 transitions. [2020-11-28 03:10:07,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1394 transitions. [2020-11-28 03:10:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:10:07,301 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:07,301 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1] [2020-11-28 03:10:07,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-28 03:10:07,521 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:07,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:07,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1888659291, now seen corresponding path program 1 times [2020-11-28 03:10:07,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:10:07,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142538252] [2020-11-28 03:10:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-28 03:10:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:07,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:07,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:07,991 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:10:07,992 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:10:08,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-28 03:10:08,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:08 BoogieIcfgContainer [2020-11-28 03:10:08,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:08,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:08,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:08,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:08,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:58" (3/4) ... [2020-11-28 03:10:08,344 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:10:08,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e04e265-d48d-4bcb-959f-ba53a7534d04/bin/uautomizer/witness.graphml [2020-11-28 03:10:08,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:08,468 INFO L168 Benchmark]: Toolchain (without parser) took 11138.39 ms. Allocated memory was 73.4 MB in the beginning and 136.3 MB in the end (delta: 62.9 MB). Free memory was 57.9 MB in the beginning and 110.5 MB in the end (delta: -52.6 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,469 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:08,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.00 ms. Allocated memory is still 73.4 MB. Free memory was 57.7 MB in the beginning and 54.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 73.4 MB. Free memory was 54.4 MB in the beginning and 51.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,470 INFO L168 Benchmark]: Boogie Preprocessor took 53.20 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 49.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,471 INFO L168 Benchmark]: RCFGBuilder took 1001.92 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 31.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,471 INFO L168 Benchmark]: TraceAbstraction took 9361.54 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 30.5 MB in the beginning and 36.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,472 INFO L168 Benchmark]: Witness Printer took 125.45 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 36.6 MB in the beginning and 110.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:08,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.00 ms. Allocated memory is still 73.4 MB. Free memory was 57.7 MB in the beginning and 54.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 73.4 MB. Free memory was 54.4 MB in the beginning and 51.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.20 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 49.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.92 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 31.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9361.54 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 30.5 MB in the beginning and 36.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. * Witness Printer took 125.45 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 36.6 MB in the beginning and 110.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 8.4 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: [L625] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int ag_Z ; [L66] int __retres60 ; [L69] s__state = 12292 [L70] blastFlag = 0 [L71] tmp = __VERIFIER_nondet_int() [L72] cb = 0 [L73] ret = -1 [L74] skip = 0 [L75] tmp___0 = 0 [L76] COND TRUE s__info_callback != 0 [L77] cb = s__info_callback [L85] s__in_handshake = s__in_handshake + 1 [L86] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(\read(s__hit)) [L98] ag_Z = 48 [L101] COND TRUE 1 [L103] state = s__state [L104] COND TRUE s__state == 12292 [L207] s__new_session = 1 [L208] s__state = 4096 [L209] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L214] s__server = 0 [L215] COND TRUE cb != 0 [L220] COND FALSE !(s__version + 65280 != 768) [L226] s__type = 4096 [L227] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L245] COND FALSE !(! tmp___4) [L251] COND FALSE !(! tmp___5) [L257] s__state = 4368 [L258] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L259] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND TRUE s__state == 4368 [L263] s__shutdown = 0 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 0 [L266] blastFlag = 1 [L270] COND FALSE !(ret <= 0) [L275] s__state = 4384 [L276] ag_X = s__state - 32 [L277] s__init_num = 0 [L278] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND TRUE s__state == 4384 [L286] ret = __VERIFIER_nondet_int() [L287] COND TRUE blastFlag == 1 [L288] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L301] s__state = ag_X [L302] COND FALSE !(\read(s__hit)) [L305] s__state = s__state | ag_Z [L307] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND TRUE s__state == 4400 [L311] COND TRUE (unsigned long )s__s3__tmp__new_cipher__algorithms + 256UL [L312] skip = 1 [L326] s__state = 4416 [L327] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND FALSE !(s__state == 4400) [L134] COND FALSE !(s__state == 4401) [L137] COND TRUE s__state == 4416 [L331] ret = __VERIFIER_nondet_int() [L332] COND FALSE !(blastFlag == 3) [L337] COND FALSE !(ret <= 0) [L342] s__state = 4432 [L343] s__init_num = 0 [L344] COND FALSE !(! tmp___6) [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND FALSE !(s__state == 4400) [L134] COND FALSE !(s__state == 4401) [L137] COND FALSE !(s__state == 4416) [L140] COND FALSE !(s__state == 4417) [L143] COND TRUE s__state == 4432 [L353] ret = __VERIFIER_nondet_int() [L354] COND TRUE blastFlag <= 5 [L3] __assert_fail("0", "s3_clnt_3.BV.c.cil-2a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1871 SDtfs, 1954 SDslu, 2167 SDs, 0 SdLazy, 1530 SolverSat, 243 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1240 GetRequests, 1207 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1012occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 256 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1230 ConstructedInterpolants, 60 QuantifiedInterpolants, 233200 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1273 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 727/828 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...