./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_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 [2020-11-30 00:29:18,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:18,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:19,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:19,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:19,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:19,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:19,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:19,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:19,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:19,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:19,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:19,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:19,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:19,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:19,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:19,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:19,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:19,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:19,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:19,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:19,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:19,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:19,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:19,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:19,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:19,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:19,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:19,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:19,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:19,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:19,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:19,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:19,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:19,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:19,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:19,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:19,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:19,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:19,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:19,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:19,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:29:19,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:19,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:19,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:19,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:19,098 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:19,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:19,098 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:29:19,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:19,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:29:19,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:19,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:29:19,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:29:19,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:29:19,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:29:19,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:29:19,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:19,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:29:19,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:19,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:19,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:29:19,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:29:19,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:19,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:19,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:29:19,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:29:19,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:19,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:29:19,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:29:19,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:19,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2020-11-30 00:29:19,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:19,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:19,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:19,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:19,485 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:19,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-30 00:29:19,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/data/aa4eb60d7/e495be6d7f554445bc7f735aa112fb3c/FLAG0e067fafe [2020-11-30 00:29:20,193 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:20,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-30 00:29:20,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/data/aa4eb60d7/e495be6d7f554445bc7f735aa112fb3c/FLAG0e067fafe [2020-11-30 00:29:20,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/data/aa4eb60d7/e495be6d7f554445bc7f735aa112fb3c [2020-11-30 00:29:20,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:20,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:29:20,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:20,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:20,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:20,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:20" (1/1) ... [2020-11-30 00:29:20,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473673fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:20, skipping insertion in model container [2020-11-30 00:29:20,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:20" (1/1) ... [2020-11-30 00:29:20,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:20,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:20,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:20,917 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:21,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:21,041 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:21,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21 WrapperNode [2020-11-30 00:29:21,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:21,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:21,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:29:21,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:29:21,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:21,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:21,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:21,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:21,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... [2020-11-30 00:29:21,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:21,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:21,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:21,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:21,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:29:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:29:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:21,582 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:29:22,483 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-11-30 00:29:22,483 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-11-30 00:29:22,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:22,495 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:29:22,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:22 BoogieIcfgContainer [2020-11-30 00:29:22,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:22,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:29:22,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:29:22,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:29:22,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:29:20" (1/3) ... [2020-11-30 00:29:22,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7a21d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:22, skipping insertion in model container [2020-11-30 00:29:22,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:21" (2/3) ... [2020-11-30 00:29:22,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7a21d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:22, skipping insertion in model container [2020-11-30 00:29:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:22" (3/3) ... [2020-11-30 00:29:22,506 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-11-30 00:29:22,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:29:22,524 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:29:22,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:29:22,581 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:29:22,581 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:29:22,581 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:29:22,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:22,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:22,582 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:29:22,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:22,582 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:29:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-11-30 00:29:22,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 00:29:22,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:22,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:22,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:22,619 INFO L82 PathProgramCache]: Analyzing trace with hash -947483198, now seen corresponding path program 1 times [2020-11-30 00:29:22,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:22,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736185329] [2020-11-30 00:29:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:22,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736185329] [2020-11-30 00:29:22,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:22,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:22,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890221864] [2020-11-30 00:29:22,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:22,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:22,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:22,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:22,984 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-11-30 00:29:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:23,439 INFO L93 Difference]: Finished difference Result 334 states and 571 transitions. [2020-11-30 00:29:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:23,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-11-30 00:29:23,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:23,474 INFO L225 Difference]: With dead ends: 334 [2020-11-30 00:29:23,474 INFO L226 Difference]: Without dead ends: 178 [2020-11-30 00:29:23,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:23,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-30 00:29:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2020-11-30 00:29:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-30 00:29:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 278 transitions. [2020-11-30 00:29:23,576 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 278 transitions. Word has length 45 [2020-11-30 00:29:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:23,578 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 278 transitions. [2020-11-30 00:29:23,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 278 transitions. [2020-11-30 00:29:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-30 00:29:23,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:23,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:23,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:29:23,588 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:23,610 INFO L82 PathProgramCache]: Analyzing trace with hash 472840096, now seen corresponding path program 1 times [2020-11-30 00:29:23,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:23,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982837112] [2020-11-30 00:29:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:23,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982837112] [2020-11-30 00:29:23,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:23,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:23,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548107331] [2020-11-30 00:29:23,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:23,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:23,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:23,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:23,794 INFO L87 Difference]: Start difference. First operand 172 states and 278 transitions. Second operand 3 states. [2020-11-30 00:29:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:24,203 INFO L93 Difference]: Finished difference Result 385 states and 632 transitions. [2020-11-30 00:29:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:24,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-11-30 00:29:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:24,208 INFO L225 Difference]: With dead ends: 385 [2020-11-30 00:29:24,208 INFO L226 Difference]: Without dead ends: 219 [2020-11-30 00:29:24,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-30 00:29:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2020-11-30 00:29:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-11-30 00:29:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 355 transitions. [2020-11-30 00:29:24,245 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 355 transitions. Word has length 46 [2020-11-30 00:29:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:24,246 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 355 transitions. [2020-11-30 00:29:24,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 355 transitions. [2020-11-30 00:29:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-30 00:29:24,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:24,252 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:24,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:29:24,252 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash 488183924, now seen corresponding path program 1 times [2020-11-30 00:29:24,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:24,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664764237] [2020-11-30 00:29:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:24,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664764237] [2020-11-30 00:29:24,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:24,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:24,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837750204] [2020-11-30 00:29:24,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:24,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:24,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:24,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:24,423 INFO L87 Difference]: Start difference. First operand 213 states and 355 transitions. Second operand 3 states. [2020-11-30 00:29:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:24,692 INFO L93 Difference]: Finished difference Result 449 states and 756 transitions. [2020-11-30 00:29:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:24,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-11-30 00:29:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:24,696 INFO L225 Difference]: With dead ends: 449 [2020-11-30 00:29:24,696 INFO L226 Difference]: Without dead ends: 244 [2020-11-30 00:29:24,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-11-30 00:29:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-11-30 00:29:24,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-30 00:29:24,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 411 transitions. [2020-11-30 00:29:24,729 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 411 transitions. Word has length 74 [2020-11-30 00:29:24,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:24,729 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 411 transitions. [2020-11-30 00:29:24,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 411 transitions. [2020-11-30 00:29:24,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-30 00:29:24,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:24,732 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:24,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:29:24,733 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1651483739, now seen corresponding path program 1 times [2020-11-30 00:29:24,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:24,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017813530] [2020-11-30 00:29:24,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:24,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017813530] [2020-11-30 00:29:24,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:24,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:24,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4081400] [2020-11-30 00:29:24,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:24,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:24,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:24,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:24,878 INFO L87 Difference]: Start difference. First operand 244 states and 411 transitions. Second operand 3 states. [2020-11-30 00:29:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:25,182 INFO L93 Difference]: Finished difference Result 526 states and 892 transitions. [2020-11-30 00:29:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:25,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-30 00:29:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:25,188 INFO L225 Difference]: With dead ends: 526 [2020-11-30 00:29:25,188 INFO L226 Difference]: Without dead ends: 290 [2020-11-30 00:29:25,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-30 00:29:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2020-11-30 00:29:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-30 00:29:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 486 transitions. [2020-11-30 00:29:25,216 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 486 transitions. Word has length 85 [2020-11-30 00:29:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:25,220 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 486 transitions. [2020-11-30 00:29:25,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 486 transitions. [2020-11-30 00:29:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-30 00:29:25,225 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:25,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:25,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:29:25,226 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:25,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1358393014, now seen corresponding path program 1 times [2020-11-30 00:29:25,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:25,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64808627] [2020-11-30 00:29:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:25,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64808627] [2020-11-30 00:29:25,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:25,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:25,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219726983] [2020-11-30 00:29:25,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:25,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:25,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:25,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:25,339 INFO L87 Difference]: Start difference. First operand 286 states and 486 transitions. Second operand 3 states. [2020-11-30 00:29:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:25,543 INFO L93 Difference]: Finished difference Result 581 states and 988 transitions. [2020-11-30 00:29:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:25,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-11-30 00:29:25,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:25,547 INFO L225 Difference]: With dead ends: 581 [2020-11-30 00:29:25,547 INFO L226 Difference]: Without dead ends: 303 [2020-11-30 00:29:25,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-11-30 00:29:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2020-11-30 00:29:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-30 00:29:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 508 transitions. [2020-11-30 00:29:25,568 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 508 transitions. Word has length 86 [2020-11-30 00:29:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:25,568 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 508 transitions. [2020-11-30 00:29:25,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 508 transitions. [2020-11-30 00:29:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-30 00:29:25,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:25,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:25,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:29:25,574 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:25,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:25,575 INFO L82 PathProgramCache]: Analyzing trace with hash 709328611, now seen corresponding path program 1 times [2020-11-30 00:29:25,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:25,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614147426] [2020-11-30 00:29:25,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:25,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614147426] [2020-11-30 00:29:25,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:25,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:25,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241572395] [2020-11-30 00:29:25,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:25,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:25,678 INFO L87 Difference]: Start difference. First operand 301 states and 508 transitions. Second operand 3 states. [2020-11-30 00:29:25,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:25,985 INFO L93 Difference]: Finished difference Result 598 states and 1009 transitions. [2020-11-30 00:29:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:25,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-11-30 00:29:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:25,990 INFO L225 Difference]: With dead ends: 598 [2020-11-30 00:29:25,990 INFO L226 Difference]: Without dead ends: 303 [2020-11-30 00:29:25,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-11-30 00:29:26,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-11-30 00:29:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-30 00:29:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 503 transitions. [2020-11-30 00:29:26,011 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 503 transitions. Word has length 86 [2020-11-30 00:29:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:26,012 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 503 transitions. [2020-11-30 00:29:26,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 503 transitions. [2020-11-30 00:29:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-11-30 00:29:26,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:26,016 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:26,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:29:26,017 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:26,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:26,023 INFO L82 PathProgramCache]: Analyzing trace with hash 564851953, now seen corresponding path program 1 times [2020-11-30 00:29:26,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:26,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112347112] [2020-11-30 00:29:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:26,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112347112] [2020-11-30 00:29:26,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:26,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:26,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66460341] [2020-11-30 00:29:26,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:26,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:26,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:26,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,088 INFO L87 Difference]: Start difference. First operand 299 states and 503 transitions. Second operand 3 states. [2020-11-30 00:29:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:26,279 INFO L93 Difference]: Finished difference Result 592 states and 996 transitions. [2020-11-30 00:29:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:26,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-11-30 00:29:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:26,281 INFO L225 Difference]: With dead ends: 592 [2020-11-30 00:29:26,282 INFO L226 Difference]: Without dead ends: 301 [2020-11-30 00:29:26,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-11-30 00:29:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2020-11-30 00:29:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-30 00:29:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 499 transitions. [2020-11-30 00:29:26,295 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 499 transitions. Word has length 87 [2020-11-30 00:29:26,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:26,295 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 499 transitions. [2020-11-30 00:29:26,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:26,296 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 499 transitions. [2020-11-30 00:29:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-30 00:29:26,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:26,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:26,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:29:26,298 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash 19025617, now seen corresponding path program 1 times [2020-11-30 00:29:26,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:26,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681107409] [2020-11-30 00:29:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-30 00:29:26,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681107409] [2020-11-30 00:29:26,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:26,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:26,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185771971] [2020-11-30 00:29:26,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:26,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:26,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,360 INFO L87 Difference]: Start difference. First operand 299 states and 499 transitions. Second operand 3 states. [2020-11-30 00:29:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:26,550 INFO L93 Difference]: Finished difference Result 599 states and 998 transitions. [2020-11-30 00:29:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:26,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-11-30 00:29:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:26,552 INFO L225 Difference]: With dead ends: 599 [2020-11-30 00:29:26,553 INFO L226 Difference]: Without dead ends: 308 [2020-11-30 00:29:26,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-11-30 00:29:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-11-30 00:29:26,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-11-30 00:29:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 505 transitions. [2020-11-30 00:29:26,568 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 505 transitions. Word has length 100 [2020-11-30 00:29:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:26,569 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 505 transitions. [2020-11-30 00:29:26,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 505 transitions. [2020-11-30 00:29:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-30 00:29:26,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:26,571 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:26,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:29:26,571 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:26,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:26,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1778247501, now seen corresponding path program 1 times [2020-11-30 00:29:26,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:26,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417591315] [2020-11-30 00:29:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:26,624 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:26,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417591315] [2020-11-30 00:29:26,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:26,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:26,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124570503] [2020-11-30 00:29:26,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:26,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:26,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:26,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,633 INFO L87 Difference]: Start difference. First operand 308 states and 505 transitions. Second operand 3 states. [2020-11-30 00:29:26,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:26,866 INFO L93 Difference]: Finished difference Result 639 states and 1051 transitions. [2020-11-30 00:29:26,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:26,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-11-30 00:29:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:26,870 INFO L225 Difference]: With dead ends: 639 [2020-11-30 00:29:26,870 INFO L226 Difference]: Without dead ends: 339 [2020-11-30 00:29:26,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-11-30 00:29:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-11-30 00:29:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-11-30 00:29:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 552 transitions. [2020-11-30 00:29:26,890 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 552 transitions. Word has length 100 [2020-11-30 00:29:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:26,890 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 552 transitions. [2020-11-30 00:29:26,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 552 transitions. [2020-11-30 00:29:26,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-11-30 00:29:26,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:26,893 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:26,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:29:26,893 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:26,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:26,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1388103916, now seen corresponding path program 1 times [2020-11-30 00:29:26,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:26,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451460881] [2020-11-30 00:29:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:26,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451460881] [2020-11-30 00:29:26,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:26,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:26,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950653487] [2020-11-30 00:29:26,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:26,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:26,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:26,962 INFO L87 Difference]: Start difference. First operand 337 states and 552 transitions. Second operand 3 states. [2020-11-30 00:29:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:27,210 INFO L93 Difference]: Finished difference Result 668 states and 1094 transitions. [2020-11-30 00:29:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:27,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-11-30 00:29:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:27,213 INFO L225 Difference]: With dead ends: 668 [2020-11-30 00:29:27,214 INFO L226 Difference]: Without dead ends: 339 [2020-11-30 00:29:27,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:27,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-11-30 00:29:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-11-30 00:29:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-11-30 00:29:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 548 transitions. [2020-11-30 00:29:27,231 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 548 transitions. Word has length 101 [2020-11-30 00:29:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:27,232 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 548 transitions. [2020-11-30 00:29:27,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 548 transitions. [2020-11-30 00:29:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-30 00:29:27,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:27,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:27,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:29:27,234 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:27,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:27,235 INFO L82 PathProgramCache]: Analyzing trace with hash -916073731, now seen corresponding path program 1 times [2020-11-30 00:29:27,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:27,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199239474] [2020-11-30 00:29:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:27,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199239474] [2020-11-30 00:29:27,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:27,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:27,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526017189] [2020-11-30 00:29:27,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:27,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:27,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:27,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:27,315 INFO L87 Difference]: Start difference. First operand 337 states and 548 transitions. Second operand 3 states. [2020-11-30 00:29:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:27,570 INFO L93 Difference]: Finished difference Result 701 states and 1144 transitions. [2020-11-30 00:29:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:27,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-11-30 00:29:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:27,574 INFO L225 Difference]: With dead ends: 701 [2020-11-30 00:29:27,575 INFO L226 Difference]: Without dead ends: 372 [2020-11-30 00:29:27,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-11-30 00:29:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-11-30 00:29:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-11-30 00:29:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 590 transitions. [2020-11-30 00:29:27,598 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 590 transitions. Word has length 102 [2020-11-30 00:29:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:27,599 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 590 transitions. [2020-11-30 00:29:27,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 590 transitions. [2020-11-30 00:29:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-30 00:29:27,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:27,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:27,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:29:27,602 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:27,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash 62624868, now seen corresponding path program 1 times [2020-11-30 00:29:27,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:27,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134522384] [2020-11-30 00:29:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:29:27,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134522384] [2020-11-30 00:29:27,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:27,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:27,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463462872] [2020-11-30 00:29:27,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:27,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:27,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:27,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:27,671 INFO L87 Difference]: Start difference. First operand 364 states and 590 transitions. Second operand 3 states. [2020-11-30 00:29:27,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:27,930 INFO L93 Difference]: Finished difference Result 728 states and 1181 transitions. [2020-11-30 00:29:27,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:27,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-30 00:29:27,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:27,934 INFO L225 Difference]: With dead ends: 728 [2020-11-30 00:29:27,934 INFO L226 Difference]: Without dead ends: 372 [2020-11-30 00:29:27,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-11-30 00:29:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-11-30 00:29:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-11-30 00:29:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 585 transitions. [2020-11-30 00:29:27,955 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 585 transitions. Word has length 103 [2020-11-30 00:29:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:27,955 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 585 transitions. [2020-11-30 00:29:27,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 585 transitions. [2020-11-30 00:29:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:29:27,957 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:27,958 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:27,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:29:27,958 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:27,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1773852357, now seen corresponding path program 1 times [2020-11-30 00:29:27,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:27,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576259134] [2020-11-30 00:29:27,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 00:29:28,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576259134] [2020-11-30 00:29:28,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:28,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:28,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71213622] [2020-11-30 00:29:28,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:28,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:28,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:28,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,019 INFO L87 Difference]: Start difference. First operand 364 states and 585 transitions. Second operand 3 states. [2020-11-30 00:29:28,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:28,250 INFO L93 Difference]: Finished difference Result 745 states and 1199 transitions. [2020-11-30 00:29:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:28,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:29:28,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:28,253 INFO L225 Difference]: With dead ends: 745 [2020-11-30 00:29:28,254 INFO L226 Difference]: Without dead ends: 389 [2020-11-30 00:29:28,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-11-30 00:29:28,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-11-30 00:29:28,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-11-30 00:29:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 614 transitions. [2020-11-30 00:29:28,274 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 614 transitions. Word has length 106 [2020-11-30 00:29:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:28,274 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 614 transitions. [2020-11-30 00:29:28,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:28,275 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 614 transitions. [2020-11-30 00:29:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-30 00:29:28,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:28,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:28,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:29:28,278 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:28,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:28,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1450939714, now seen corresponding path program 1 times [2020-11-30 00:29:28,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:28,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560582294] [2020-11-30 00:29:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 00:29:28,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560582294] [2020-11-30 00:29:28,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:28,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:28,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989622011] [2020-11-30 00:29:28,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:28,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:28,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:28,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,335 INFO L87 Difference]: Start difference. First operand 385 states and 614 transitions. Second operand 3 states. [2020-11-30 00:29:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:28,555 INFO L93 Difference]: Finished difference Result 766 states and 1222 transitions. [2020-11-30 00:29:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:28,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-30 00:29:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:28,559 INFO L225 Difference]: With dead ends: 766 [2020-11-30 00:29:28,559 INFO L226 Difference]: Without dead ends: 389 [2020-11-30 00:29:28,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-11-30 00:29:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-11-30 00:29:28,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-11-30 00:29:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2020-11-30 00:29:28,580 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 107 [2020-11-30 00:29:28,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:28,581 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2020-11-30 00:29:28,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:28,581 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2020-11-30 00:29:28,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-30 00:29:28,583 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:28,584 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:28,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 00:29:28,584 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:28,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1044207465, now seen corresponding path program 1 times [2020-11-30 00:29:28,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:28,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745420931] [2020-11-30 00:29:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:28,645 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:29:28,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745420931] [2020-11-30 00:29:28,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:28,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:28,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681625895] [2020-11-30 00:29:28,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:28,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:28,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:28,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,648 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand 3 states. [2020-11-30 00:29:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:28,717 INFO L93 Difference]: Finished difference Result 1093 states and 1730 transitions. [2020-11-30 00:29:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:28,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-11-30 00:29:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:28,723 INFO L225 Difference]: With dead ends: 1093 [2020-11-30 00:29:28,723 INFO L226 Difference]: Without dead ends: 716 [2020-11-30 00:29:28,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:28,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-30 00:29:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-30 00:29:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 00:29:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1128 transitions. [2020-11-30 00:29:28,768 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1128 transitions. Word has length 122 [2020-11-30 00:29:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:28,769 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1128 transitions. [2020-11-30 00:29:28,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1128 transitions. [2020-11-30 00:29:28,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-30 00:29:28,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:28,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:28,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:29:28,773 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:28,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:28,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1005180377, now seen corresponding path program 1 times [2020-11-30 00:29:28,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:28,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807946087] [2020-11-30 00:29:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:28,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:28,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:28,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:28,939 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:29:28,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:29:29,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:29:29 BoogieIcfgContainer [2020-11-30 00:29:29,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:29:29,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:29:29,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:29:29,108 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:29:29,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:22" (3/4) ... [2020-11-30 00:29:29,111 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:29:29,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e61c8eba-1d0c-479e-82bb-d78f2b1292f2/bin/uautomizer/witness.graphml [2020-11-30 00:29:29,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:29:29,267 INFO L168 Benchmark]: Toolchain (without parser) took 8783.74 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 69.4 MB in the beginning and 103.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,267 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:29,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.34 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 70.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.27 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 67.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,272 INFO L168 Benchmark]: Boogie Preprocessor took 74.54 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 65.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,273 INFO L168 Benchmark]: RCFGBuilder took 1293.62 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 65.2 MB in the beginning and 63.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,273 INFO L168 Benchmark]: TraceAbstraction took 6608.24 ms. Allocated memory was 121.6 MB in the beginning and 182.5 MB in the end (delta: 60.8 MB). Free memory was 62.5 MB in the beginning and 118.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,274 INFO L168 Benchmark]: Witness Printer took 157.12 ms. Allocated memory is still 182.5 MB. Free memory was 117.1 MB in the beginning and 103.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:29,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.34 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 70.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.27 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 67.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.54 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 65.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1293.62 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 65.2 MB in the beginning and 63.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6608.24 ms. Allocated memory was 121.6 MB in the beginning and 182.5 MB in the end (delta: 60.8 MB). Free memory was 62.5 MB in the beginning and 118.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 157.12 ms. Allocated memory is still 182.5 MB. Free memory was 117.1 MB in the beginning and 103.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [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, 144 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.3s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2225 SDtfs, 2216 SDslu, 435 SDs, 0 SdLazy, 1340 SolverSat, 604 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=716occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 52 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1472 NumberOfCodeBlocks, 1472 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1335 ConstructedInterpolants, 0 QuantifiedInterpolants, 221866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 736/736 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...