./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.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_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3bbefcee290f98530e25ab3f5cc4cda5aa0150b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-22 13:04:14,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:14,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:15,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:15,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:15,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:15,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:15,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:15,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:15,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:15,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:15,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:15,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:15,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:15,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:15,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:15,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:15,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:15,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:15,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:15,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:15,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:15,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:15,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:15,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:15,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:15,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:15,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:15,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:15,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:15,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:15,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:15,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:15,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:15,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:15,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:15,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:15,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:15,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:15,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:15,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:15,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:04:15,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:15,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:15,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:15,162 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:15,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:15,163 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:15,163 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:04:15,163 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:15,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:15,163 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:04:15,164 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:04:15,165 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:15,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:04:15,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:04:15,165 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:04:15,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:15,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:15,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:04:15,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:15,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:15,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:15,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:15,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:15,168 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:15,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:15,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:15,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:15,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:15,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:15,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:15,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:15,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:15,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:15,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:15,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:15,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:04:15,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:04:15,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:15,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:15,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:15,171 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2020-11-22 13:04:15,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:15,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:15,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:15,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:15,504 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:15,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-22 13:04:15,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/data/e02d9b9cc/41a406503e7b40079ccc795d6e571111/FLAGdfb5c97a7 [2020-11-22 13:04:16,058 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:16,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-22 13:04:16,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/data/e02d9b9cc/41a406503e7b40079ccc795d6e571111/FLAGdfb5c97a7 [2020-11-22 13:04:16,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/data/e02d9b9cc/41a406503e7b40079ccc795d6e571111 [2020-11-22 13:04:16,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:16,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:16,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:16,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:16,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:16,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487400d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16, skipping insertion in model container [2020-11-22 13:04:16,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:16,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:16,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:16,723 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:04:16,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:16,793 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:04:16,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16 WrapperNode [2020-11-22 13:04:16,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:16,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:16,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:04:16,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:04:16,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:16,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:04:16,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:04:16,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:04:16,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... [2020-11-22 13:04:16,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:04:16,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:04:16,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:04:16,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:04:16,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:04:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:04:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:04:17,245 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-22 13:04:18,133 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-11-22 13:04:18,134 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-11-22 13:04:18,555 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:18,555 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-22 13:04:18,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:18 BoogieIcfgContainer [2020-11-22 13:04:18,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:18,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:18,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:18,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:18,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:04:16" (1/3) ... [2020-11-22 13:04:18,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abd4eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:18, skipping insertion in model container [2020-11-22 13:04:18,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:16" (2/3) ... [2020-11-22 13:04:18,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abd4eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:18, skipping insertion in model container [2020-11-22 13:04:18,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:18" (3/3) ... [2020-11-22 13:04:18,570 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-11-22 13:04:18,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:18,590 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:04:18,601 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:04:18,641 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:18,641 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:18,641 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:18,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:18,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:18,642 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:18,642 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:18,642 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-11-22 13:04:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-22 13:04:18,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:18,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:18,673 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:18,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:18,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1024812509, now seen corresponding path program 1 times [2020-11-22 13:04:18,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:18,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410654674] [2020-11-22 13:04:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410654674] [2020-11-22 13:04:18,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:18,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:18,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303098394] [2020-11-22 13:04:18,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:18,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:18,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:18,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:18,953 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 3 states. [2020-11-22 13:04:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:19,288 INFO L93 Difference]: Finished difference Result 261 states and 456 transitions. [2020-11-22 13:04:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:19,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-11-22 13:04:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:19,313 INFO L225 Difference]: With dead ends: 261 [2020-11-22 13:04:19,317 INFO L226 Difference]: Without dead ends: 150 [2020-11-22 13:04:19,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-22 13:04:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2020-11-22 13:04:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-22 13:04:19,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 232 transitions. [2020-11-22 13:04:19,385 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 232 transitions. Word has length 40 [2020-11-22 13:04:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:19,386 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 232 transitions. [2020-11-22 13:04:19,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 232 transitions. [2020-11-22 13:04:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-22 13:04:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:19,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:19,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:04:19,389 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:19,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1924368545, now seen corresponding path program 1 times [2020-11-22 13:04:19,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:19,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708418500] [2020-11-22 13:04:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:19,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708418500] [2020-11-22 13:04:19,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:19,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:19,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528838228] [2020-11-22 13:04:19,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:19,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:19,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:19,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:19,500 INFO L87 Difference]: Start difference. First operand 144 states and 232 transitions. Second operand 3 states. [2020-11-22 13:04:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:19,791 INFO L93 Difference]: Finished difference Result 333 states and 546 transitions. [2020-11-22 13:04:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:19,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-11-22 13:04:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:19,797 INFO L225 Difference]: With dead ends: 333 [2020-11-22 13:04:19,797 INFO L226 Difference]: Without dead ends: 189 [2020-11-22 13:04:19,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-22 13:04:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 183. [2020-11-22 13:04:19,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-22 13:04:19,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 305 transitions. [2020-11-22 13:04:19,823 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 305 transitions. Word has length 41 [2020-11-22 13:04:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:19,825 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 305 transitions. [2020-11-22 13:04:19,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 305 transitions. [2020-11-22 13:04:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-22 13:04:19,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:19,834 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:19,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:04:19,835 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:19,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1945415525, now seen corresponding path program 1 times [2020-11-22 13:04:19,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:19,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464822029] [2020-11-22 13:04:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:19,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464822029] [2020-11-22 13:04:19,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:19,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:19,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293716644] [2020-11-22 13:04:19,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:19,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:19,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:19,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:19,966 INFO L87 Difference]: Start difference. First operand 183 states and 305 transitions. Second operand 3 states. [2020-11-22 13:04:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:20,205 INFO L93 Difference]: Finished difference Result 393 states and 662 transitions. [2020-11-22 13:04:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:20,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-11-22 13:04:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:20,208 INFO L225 Difference]: With dead ends: 393 [2020-11-22 13:04:20,208 INFO L226 Difference]: Without dead ends: 212 [2020-11-22 13:04:20,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-22 13:04:20,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-11-22 13:04:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-22 13:04:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 357 transitions. [2020-11-22 13:04:20,237 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 357 transitions. Word has length 67 [2020-11-22 13:04:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:20,238 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 357 transitions. [2020-11-22 13:04:20,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 357 transitions. [2020-11-22 13:04:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-22 13:04:20,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:20,246 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:20,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:04:20,246 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash 629995383, now seen corresponding path program 1 times [2020-11-22 13:04:20,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:20,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810996336] [2020-11-22 13:04:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:20,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810996336] [2020-11-22 13:04:20,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:20,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:20,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355348010] [2020-11-22 13:04:20,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:20,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:20,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:20,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:20,356 INFO L87 Difference]: Start difference. First operand 212 states and 357 transitions. Second operand 3 states. [2020-11-22 13:04:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:20,548 INFO L93 Difference]: Finished difference Result 437 states and 736 transitions. [2020-11-22 13:04:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:20,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-22 13:04:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:20,551 INFO L225 Difference]: With dead ends: 437 [2020-11-22 13:04:20,551 INFO L226 Difference]: Without dead ends: 227 [2020-11-22 13:04:20,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:20,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-11-22 13:04:20,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2020-11-22 13:04:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-11-22 13:04:20,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 376 transitions. [2020-11-22 13:04:20,577 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 376 transitions. Word has length 78 [2020-11-22 13:04:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:20,578 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 376 transitions. [2020-11-22 13:04:20,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 376 transitions. [2020-11-22 13:04:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-22 13:04:20,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:20,579 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:20,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:04:20,580 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:20,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:20,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1041955580, now seen corresponding path program 1 times [2020-11-22 13:04:20,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:20,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581879219] [2020-11-22 13:04:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:20,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581879219] [2020-11-22 13:04:20,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:20,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:20,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824703985] [2020-11-22 13:04:20,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:20,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:20,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:20,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:20,710 INFO L87 Difference]: Start difference. First operand 225 states and 376 transitions. Second operand 3 states. [2020-11-22 13:04:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:20,988 INFO L93 Difference]: Finished difference Result 489 states and 823 transitions. [2020-11-22 13:04:20,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:20,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-22 13:04:20,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:20,990 INFO L225 Difference]: With dead ends: 489 [2020-11-22 13:04:20,991 INFO L226 Difference]: Without dead ends: 266 [2020-11-22 13:04:20,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-22 13:04:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2020-11-22 13:04:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-22 13:04:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 444 transitions. [2020-11-22 13:04:21,018 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 444 transitions. Word has length 78 [2020-11-22 13:04:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:21,022 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 444 transitions. [2020-11-22 13:04:21,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 444 transitions. [2020-11-22 13:04:21,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-22 13:04:21,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:21,024 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:21,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:04:21,024 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:21,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1480624654, now seen corresponding path program 1 times [2020-11-22 13:04:21,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:21,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393136851] [2020-11-22 13:04:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:21,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393136851] [2020-11-22 13:04:21,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:21,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:21,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885238176] [2020-11-22 13:04:21,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:21,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:21,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:21,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,079 INFO L87 Difference]: Start difference. First operand 263 states and 444 transitions. Second operand 3 states. [2020-11-22 13:04:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:21,282 INFO L93 Difference]: Finished difference Result 526 states and 888 transitions. [2020-11-22 13:04:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:21,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-11-22 13:04:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:21,285 INFO L225 Difference]: With dead ends: 526 [2020-11-22 13:04:21,285 INFO L226 Difference]: Without dead ends: 265 [2020-11-22 13:04:21,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-22 13:04:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-11-22 13:04:21,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-22 13:04:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 440 transitions. [2020-11-22 13:04:21,296 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 440 transitions. Word has length 79 [2020-11-22 13:04:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:21,296 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 440 transitions. [2020-11-22 13:04:21,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:21,297 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 440 transitions. [2020-11-22 13:04:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-22 13:04:21,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:21,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:21,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:04:21,298 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:21,299 INFO L82 PathProgramCache]: Analyzing trace with hash -528231784, now seen corresponding path program 1 times [2020-11-22 13:04:21,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:21,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336877077] [2020-11-22 13:04:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:21,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336877077] [2020-11-22 13:04:21,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:21,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:21,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425953455] [2020-11-22 13:04:21,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:21,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:21,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:21,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,349 INFO L87 Difference]: Start difference. First operand 263 states and 440 transitions. Second operand 3 states. [2020-11-22 13:04:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:21,621 INFO L93 Difference]: Finished difference Result 527 states and 881 transitions. [2020-11-22 13:04:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:21,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-11-22 13:04:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:21,624 INFO L225 Difference]: With dead ends: 527 [2020-11-22 13:04:21,624 INFO L226 Difference]: Without dead ends: 264 [2020-11-22 13:04:21,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-22 13:04:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2020-11-22 13:04:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-22 13:04:21,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 435 transitions. [2020-11-22 13:04:21,636 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 435 transitions. Word has length 79 [2020-11-22 13:04:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:21,637 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 435 transitions. [2020-11-22 13:04:21,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 435 transitions. [2020-11-22 13:04:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-11-22 13:04:21,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:21,638 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:21,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:04:21,639 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1557538073, now seen corresponding path program 1 times [2020-11-22 13:04:21,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:21,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706919591] [2020-11-22 13:04:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-22 13:04:21,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706919591] [2020-11-22 13:04:21,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:21,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:21,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659151752] [2020-11-22 13:04:21,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:21,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:21,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:21,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,681 INFO L87 Difference]: Start difference. First operand 261 states and 435 transitions. Second operand 3 states. [2020-11-22 13:04:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:21,853 INFO L93 Difference]: Finished difference Result 527 states and 877 transitions. [2020-11-22 13:04:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:21,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-11-22 13:04:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:21,856 INFO L225 Difference]: With dead ends: 527 [2020-11-22 13:04:21,856 INFO L226 Difference]: Without dead ends: 268 [2020-11-22 13:04:21,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-11-22 13:04:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-11-22 13:04:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-11-22 13:04:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 438 transitions. [2020-11-22 13:04:21,869 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 438 transitions. Word has length 88 [2020-11-22 13:04:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:21,869 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 438 transitions. [2020-11-22 13:04:21,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 438 transitions. [2020-11-22 13:04:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-22 13:04:21,871 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:21,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:21,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:04:21,871 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:21,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:21,872 INFO L82 PathProgramCache]: Analyzing trace with hash 256027284, now seen corresponding path program 1 times [2020-11-22 13:04:21,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:21,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515603763] [2020-11-22 13:04:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:21,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515603763] [2020-11-22 13:04:21,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:21,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:21,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990015831] [2020-11-22 13:04:21,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:21,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:21,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:21,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:21,937 INFO L87 Difference]: Start difference. First operand 268 states and 438 transitions. Second operand 3 states. [2020-11-22 13:04:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:22,144 INFO L93 Difference]: Finished difference Result 563 states and 923 transitions. [2020-11-22 13:04:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:22,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-11-22 13:04:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:22,147 INFO L225 Difference]: With dead ends: 563 [2020-11-22 13:04:22,147 INFO L226 Difference]: Without dead ends: 297 [2020-11-22 13:04:22,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-22 13:04:22,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-11-22 13:04:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-11-22 13:04:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 481 transitions. [2020-11-22 13:04:22,167 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 481 transitions. Word has length 92 [2020-11-22 13:04:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:22,170 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 481 transitions. [2020-11-22 13:04:22,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 481 transitions. [2020-11-22 13:04:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-22 13:04:22,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:22,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:22,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:04:22,172 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:22,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:22,172 INFO L82 PathProgramCache]: Analyzing trace with hash -2020284277, now seen corresponding path program 1 times [2020-11-22 13:04:22,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:22,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512722144] [2020-11-22 13:04:22,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:22,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512722144] [2020-11-22 13:04:22,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:22,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:22,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384494631] [2020-11-22 13:04:22,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:22,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:22,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:22,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,233 INFO L87 Difference]: Start difference. First operand 295 states and 481 transitions. Second operand 3 states. [2020-11-22 13:04:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:22,432 INFO L93 Difference]: Finished difference Result 590 states and 962 transitions. [2020-11-22 13:04:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:22,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-11-22 13:04:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:22,435 INFO L225 Difference]: With dead ends: 590 [2020-11-22 13:04:22,435 INFO L226 Difference]: Without dead ends: 297 [2020-11-22 13:04:22,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-22 13:04:22,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-11-22 13:04:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-11-22 13:04:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 477 transitions. [2020-11-22 13:04:22,450 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 477 transitions. Word has length 93 [2020-11-22 13:04:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:22,450 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 477 transitions. [2020-11-22 13:04:22,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 477 transitions. [2020-11-22 13:04:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-22 13:04:22,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:22,452 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:22,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-22 13:04:22,452 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:22,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:22,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1270737060, now seen corresponding path program 1 times [2020-11-22 13:04:22,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:22,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172994284] [2020-11-22 13:04:22,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:22,507 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:22,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172994284] [2020-11-22 13:04:22,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:22,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:22,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009335650] [2020-11-22 13:04:22,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:22,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:22,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:22,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,511 INFO L87 Difference]: Start difference. First operand 295 states and 477 transitions. Second operand 3 states. [2020-11-22 13:04:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:22,709 INFO L93 Difference]: Finished difference Result 621 states and 1008 transitions. [2020-11-22 13:04:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:22,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-11-22 13:04:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:22,712 INFO L225 Difference]: With dead ends: 621 [2020-11-22 13:04:22,712 INFO L226 Difference]: Without dead ends: 328 [2020-11-22 13:04:22,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-11-22 13:04:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-11-22 13:04:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-11-22 13:04:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 515 transitions. [2020-11-22 13:04:22,729 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 515 transitions. Word has length 94 [2020-11-22 13:04:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:22,729 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 515 transitions. [2020-11-22 13:04:22,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 515 transitions. [2020-11-22 13:04:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-22 13:04:22,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:22,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:22,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-22 13:04:22,732 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:22,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:22,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1568897396, now seen corresponding path program 1 times [2020-11-22 13:04:22,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:22,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106576169] [2020-11-22 13:04:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-22 13:04:22,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106576169] [2020-11-22 13:04:22,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:22,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:22,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072227412] [2020-11-22 13:04:22,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:22,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:22,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:22,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,779 INFO L87 Difference]: Start difference. First operand 320 states and 515 transitions. Second operand 3 states. [2020-11-22 13:04:22,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:22,959 INFO L93 Difference]: Finished difference Result 659 states and 1061 transitions. [2020-11-22 13:04:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:22,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-11-22 13:04:22,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:22,963 INFO L225 Difference]: With dead ends: 659 [2020-11-22 13:04:22,963 INFO L226 Difference]: Without dead ends: 341 [2020-11-22 13:04:22,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:22,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-11-22 13:04:22,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2020-11-22 13:04:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-22 13:04:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 540 transitions. [2020-11-22 13:04:22,980 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 540 transitions. Word has length 95 [2020-11-22 13:04:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:22,981 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 540 transitions. [2020-11-22 13:04:22,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 540 transitions. [2020-11-22 13:04:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-22 13:04:22,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:22,983 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-11-22 13:04:22,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-22 13:04:22,983 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:22,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1983415941, now seen corresponding path program 1 times [2020-11-22 13:04:22,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:22,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570639587] [2020-11-22 13:04:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:04:23,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570639587] [2020-11-22 13:04:23,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:23,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:23,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646199202] [2020-11-22 13:04:23,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:23,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:23,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:23,046 INFO L87 Difference]: Start difference. First operand 339 states and 540 transitions. Second operand 3 states. [2020-11-22 13:04:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:23,245 INFO L93 Difference]: Finished difference Result 684 states and 1091 transitions. [2020-11-22 13:04:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:23,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-11-22 13:04:23,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:23,250 INFO L225 Difference]: With dead ends: 684 [2020-11-22 13:04:23,250 INFO L226 Difference]: Without dead ends: 347 [2020-11-22 13:04:23,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-11-22 13:04:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 339. [2020-11-22 13:04:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-22 13:04:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 535 transitions. [2020-11-22 13:04:23,267 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 535 transitions. Word has length 95 [2020-11-22 13:04:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:23,267 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 535 transitions. [2020-11-22 13:04:23,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 535 transitions. [2020-11-22 13:04:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-22 13:04:23,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:23,269 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:23,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-22 13:04:23,269 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:23,270 INFO L82 PathProgramCache]: Analyzing trace with hash -567419211, now seen corresponding path program 1 times [2020-11-22 13:04:23,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:23,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704944427] [2020-11-22 13:04:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-22 13:04:23,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704944427] [2020-11-22 13:04:23,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:23,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:04:23,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258893646] [2020-11-22 13:04:23,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:23,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:23,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:23,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:23,315 INFO L87 Difference]: Start difference. First operand 339 states and 535 transitions. Second operand 3 states. [2020-11-22 13:04:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:23,500 INFO L93 Difference]: Finished difference Result 678 states and 1070 transitions. [2020-11-22 13:04:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:23,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-11-22 13:04:23,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:23,502 INFO L225 Difference]: With dead ends: 678 [2020-11-22 13:04:23,502 INFO L226 Difference]: Without dead ends: 341 [2020-11-22 13:04:23,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-11-22 13:04:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2020-11-22 13:04:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-22 13:04:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 529 transitions. [2020-11-22 13:04:23,522 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 529 transitions. Word has length 96 [2020-11-22 13:04:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:23,523 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 529 transitions. [2020-11-22 13:04:23,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 529 transitions. [2020-11-22 13:04:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-11-22 13:04:23,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:23,525 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:23,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-22 13:04:23,525 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:23,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:23,526 INFO L82 PathProgramCache]: Analyzing trace with hash -960376249, now seen corresponding path program 1 times [2020-11-22 13:04:23,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:23,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821648759] [2020-11-22 13:04:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:23,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:23,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:23,680 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:04:23,680 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:04:23,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-22 13:04:23,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:23 BoogieIcfgContainer [2020-11-22 13:04:23,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:23,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:23,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:23,827 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:23,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:18" (3/4) ... [2020-11-22 13:04:23,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:04:23,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_58805885-c405-4d4f-8b0c-e8e136190d2e/bin/utaipan/witness.graphml [2020-11-22 13:04:23,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:23,958 INFO L168 Benchmark]: Toolchain (without parser) took 7530.98 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 70.3 MB in the beginning and 71.1 MB in the end (delta: -766.9 kB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,959 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:23,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.11 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 72.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 69.2 MB in the end (delta: 2.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:23,960 INFO L168 Benchmark]: Boogie Preprocessor took 38.18 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 67.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,961 INFO L168 Benchmark]: RCFGBuilder took 1663.90 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 67.1 MB in the beginning and 76.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,963 INFO L168 Benchmark]: TraceAbstraction took 5267.45 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 75.9 MB in the beginning and 84.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,964 INFO L168 Benchmark]: Witness Printer took 128.69 ms. Allocated memory is still 151.0 MB. Free memory was 84.7 MB in the beginning and 71.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:23,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.11 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 72.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 69.2 MB in the end (delta: 2.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.18 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 67.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1663.90 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 67.1 MB in the beginning and 76.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5267.45 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 75.9 MB in the beginning and 84.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 128.69 ms. Allocated memory is still 151.0 MB. Free memory was 84.7 MB in the beginning and 71.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 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: [L618] int s ; [L619] int tmp ; [L623] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND TRUE \read(s__hit) [L292] s__state = 8656 [L296] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] tmp___9 = __VERIFIER_nondet_int() [L492] COND FALSE !(! tmp___9) [L496] ret = __VERIFIER_nondet_int() [L497] COND TRUE blastFlag == 2 [L498] blastFlag = 3 [L500] COND FALSE !(ret <= 0) [L503] s__state = 8672 [L504] s__init_num = 0 [L505] tmp___10 = __VERIFIER_nondet_int() [L506] COND FALSE !(! tmp___10) [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND FALSE !(blastFlag == 4) [L517] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_1.cil-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.0s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1274 SDtfs, 1579 SDslu, 168 SDs, 0 SdLazy, 1291 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 46 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1224 NumberOfCodeBlocks, 1224 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1101 ConstructedInterpolants, 0 QuantifiedInterpolants, 156725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 603/603 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...