./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_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3bbefcee290f98530e25ab3f5cc4cda5aa0150b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:37:24,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:24,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:24,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:24,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:24,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:24,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:24,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:24,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:24,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:24,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:24,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:24,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:24,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:24,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:24,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:24,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:24,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:24,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:24,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:24,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:24,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:24,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:24,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:24,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:24,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:24,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:24,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:24,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:24,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:24,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:24,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:24,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:24,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:24,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:24,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:24,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:24,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:24,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:24,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:24,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:24,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:37:24,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:24,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:24,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:24,812 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:24,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:24,813 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:24,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:37:24,813 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:24,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:24,813 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:37:24,814 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:37:24,815 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:24,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:37:24,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:37:24,815 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:37:24,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:24,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:24,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:37:24,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:24,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:24,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:24,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:24,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:24,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:24,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:24,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:24,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:24,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:24,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:24,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:24,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:24,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:24,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:24,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:24,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:24,820 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:37:24,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:37:24,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:24,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:24,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:24,821 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2020-11-28 07:37:25,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:25,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:25,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:25,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:25,186 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:25,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-28 07:37:25,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/data/e95736d27/11013baa1a6a41f780d14a48cede5fbf/FLAG28fcd1701 [2020-11-28 07:37:25,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:25,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-11-28 07:37:25,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/data/e95736d27/11013baa1a6a41f780d14a48cede5fbf/FLAG28fcd1701 [2020-11-28 07:37:25,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/data/e95736d27/11013baa1a6a41f780d14a48cede5fbf [2020-11-28 07:37:25,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:25,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:25,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:25,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:25,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:25,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:25" (1/1) ... [2020-11-28 07:37:25,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a7e52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:25, skipping insertion in model container [2020-11-28 07:37:25,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:25" (1/1) ... [2020-11-28 07:37:25,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:25,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:26,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,273 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:26,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,402 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:26,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26 WrapperNode [2020-11-28 07:37:26,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:26,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:26,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:26,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:26,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:26,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:26,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:26,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:26,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:37:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:26,786 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:37:27,593 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-11-28 07:37:27,594 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-11-28 07:37:27,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:27,974 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:37:27,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27 BoogieIcfgContainer [2020-11-28 07:37:27,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:27,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:27,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:27,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:27,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:25" (1/3) ... [2020-11-28 07:37:27,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ab0184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:27, skipping insertion in model container [2020-11-28 07:37:27,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (2/3) ... [2020-11-28 07:37:27,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ab0184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:27, skipping insertion in model container [2020-11-28 07:37:27,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27" (3/3) ... [2020-11-28 07:37:27,989 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-11-28 07:37:28,000 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:28,005 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:37:28,016 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:37:28,054 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:28,054 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:28,054 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:28,054 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:28,054 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:28,055 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:28,055 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:28,055 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-11-28 07:37:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-28 07:37:28,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:28,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:28,084 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:28,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1024812509, now seen corresponding path program 1 times [2020-11-28 07:37:28,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:28,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143241882] [2020-11-28 07:37:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:28,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143241882] [2020-11-28 07:37:28,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:28,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:28,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661236439] [2020-11-28 07:37:28,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:28,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:28,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:28,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:28,366 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 3 states. [2020-11-28 07:37:28,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:28,729 INFO L93 Difference]: Finished difference Result 261 states and 456 transitions. [2020-11-28 07:37:28,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:28,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-11-28 07:37:28,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:28,743 INFO L225 Difference]: With dead ends: 261 [2020-11-28 07:37:28,743 INFO L226 Difference]: Without dead ends: 150 [2020-11-28 07:37:28,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-28 07:37:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2020-11-28 07:37:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-28 07:37:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 232 transitions. [2020-11-28 07:37:28,838 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 232 transitions. Word has length 40 [2020-11-28 07:37:28,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:28,838 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 232 transitions. [2020-11-28 07:37:28,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 232 transitions. [2020-11-28 07:37:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-28 07:37:28,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:28,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:28,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:37:28,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:28,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:28,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1924368545, now seen corresponding path program 1 times [2020-11-28 07:37:28,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:28,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536130386] [2020-11-28 07:37:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:28,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536130386] [2020-11-28 07:37:28,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:28,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:28,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086440866] [2020-11-28 07:37:28,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:28,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:28,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:28,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:28,990 INFO L87 Difference]: Start difference. First operand 144 states and 232 transitions. Second operand 3 states. [2020-11-28 07:37:29,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:29,244 INFO L93 Difference]: Finished difference Result 333 states and 546 transitions. [2020-11-28 07:37:29,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:29,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-11-28 07:37:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:29,247 INFO L225 Difference]: With dead ends: 333 [2020-11-28 07:37:29,247 INFO L226 Difference]: Without dead ends: 189 [2020-11-28 07:37:29,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-28 07:37:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 183. [2020-11-28 07:37:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-28 07:37:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 305 transitions. [2020-11-28 07:37:29,262 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 305 transitions. Word has length 41 [2020-11-28 07:37:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:29,263 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 305 transitions. [2020-11-28 07:37:29,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 305 transitions. [2020-11-28 07:37:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-28 07:37:29,270 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:29,270 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:29,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:37:29,271 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:29,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1945415525, now seen corresponding path program 1 times [2020-11-28 07:37:29,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:29,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798019126] [2020-11-28 07:37:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:29,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798019126] [2020-11-28 07:37:29,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:29,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:29,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369189165] [2020-11-28 07:37:29,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:29,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:29,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:29,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:29,407 INFO L87 Difference]: Start difference. First operand 183 states and 305 transitions. Second operand 3 states. [2020-11-28 07:37:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:29,652 INFO L93 Difference]: Finished difference Result 393 states and 662 transitions. [2020-11-28 07:37:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:29,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-11-28 07:37:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:29,655 INFO L225 Difference]: With dead ends: 393 [2020-11-28 07:37:29,655 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 07:37:29,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 07:37:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-11-28 07:37:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-28 07:37:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 357 transitions. [2020-11-28 07:37:29,686 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 357 transitions. Word has length 67 [2020-11-28 07:37:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:29,687 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 357 transitions. [2020-11-28 07:37:29,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:29,687 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 357 transitions. [2020-11-28 07:37:29,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-28 07:37:29,691 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:29,691 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:29,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:37:29,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:29,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:29,692 INFO L82 PathProgramCache]: Analyzing trace with hash 629995383, now seen corresponding path program 1 times [2020-11-28 07:37:29,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:29,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367344393] [2020-11-28 07:37:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:29,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367344393] [2020-11-28 07:37:29,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:29,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:29,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783093350] [2020-11-28 07:37:29,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:29,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:29,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:29,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:29,811 INFO L87 Difference]: Start difference. First operand 212 states and 357 transitions. Second operand 3 states. [2020-11-28 07:37:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:30,008 INFO L93 Difference]: Finished difference Result 437 states and 736 transitions. [2020-11-28 07:37:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:30,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-28 07:37:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:30,012 INFO L225 Difference]: With dead ends: 437 [2020-11-28 07:37:30,012 INFO L226 Difference]: Without dead ends: 227 [2020-11-28 07:37:30,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-11-28 07:37:30,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2020-11-28 07:37:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-11-28 07:37:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 376 transitions. [2020-11-28 07:37:30,030 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 376 transitions. Word has length 78 [2020-11-28 07:37:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:30,031 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 376 transitions. [2020-11-28 07:37:30,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 376 transitions. [2020-11-28 07:37:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-28 07:37:30,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:30,040 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:30,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:37:30,041 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:30,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:30,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1041955580, now seen corresponding path program 1 times [2020-11-28 07:37:30,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:30,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496573163] [2020-11-28 07:37:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:30,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496573163] [2020-11-28 07:37:30,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:30,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:30,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7255921] [2020-11-28 07:37:30,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:30,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:30,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:30,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,124 INFO L87 Difference]: Start difference. First operand 225 states and 376 transitions. Second operand 3 states. [2020-11-28 07:37:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:30,395 INFO L93 Difference]: Finished difference Result 489 states and 823 transitions. [2020-11-28 07:37:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:30,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-28 07:37:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:30,398 INFO L225 Difference]: With dead ends: 489 [2020-11-28 07:37:30,398 INFO L226 Difference]: Without dead ends: 266 [2020-11-28 07:37:30,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-28 07:37:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2020-11-28 07:37:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-28 07:37:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 444 transitions. [2020-11-28 07:37:30,411 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 444 transitions. Word has length 78 [2020-11-28 07:37:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:30,411 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 444 transitions. [2020-11-28 07:37:30,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 444 transitions. [2020-11-28 07:37:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-28 07:37:30,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:30,413 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:30,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:37:30,413 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:30,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1480624654, now seen corresponding path program 1 times [2020-11-28 07:37:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:30,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972536378] [2020-11-28 07:37:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:30,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972536378] [2020-11-28 07:37:30,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:30,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:30,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137174880] [2020-11-28 07:37:30,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:30,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:30,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:30,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,455 INFO L87 Difference]: Start difference. First operand 263 states and 444 transitions. Second operand 3 states. [2020-11-28 07:37:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:30,630 INFO L93 Difference]: Finished difference Result 526 states and 888 transitions. [2020-11-28 07:37:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:30,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-11-28 07:37:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:30,632 INFO L225 Difference]: With dead ends: 526 [2020-11-28 07:37:30,632 INFO L226 Difference]: Without dead ends: 265 [2020-11-28 07:37:30,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-28 07:37:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-11-28 07:37:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-28 07:37:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 440 transitions. [2020-11-28 07:37:30,644 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 440 transitions. Word has length 79 [2020-11-28 07:37:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:30,644 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 440 transitions. [2020-11-28 07:37:30,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 440 transitions. [2020-11-28 07:37:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-28 07:37:30,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:30,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:30,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 07:37:30,646 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:30,646 INFO L82 PathProgramCache]: Analyzing trace with hash -528231784, now seen corresponding path program 1 times [2020-11-28 07:37:30,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:30,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9464217] [2020-11-28 07:37:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:30,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9464217] [2020-11-28 07:37:30,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:30,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:30,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317243558] [2020-11-28 07:37:30,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:30,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:30,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:30,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,746 INFO L87 Difference]: Start difference. First operand 263 states and 440 transitions. Second operand 3 states. [2020-11-28 07:37:30,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:30,994 INFO L93 Difference]: Finished difference Result 527 states and 881 transitions. [2020-11-28 07:37:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:30,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-11-28 07:37:30,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:30,996 INFO L225 Difference]: With dead ends: 527 [2020-11-28 07:37:30,996 INFO L226 Difference]: Without dead ends: 264 [2020-11-28 07:37:30,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-28 07:37:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2020-11-28 07:37:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-28 07:37:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 435 transitions. [2020-11-28 07:37:31,014 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 435 transitions. Word has length 79 [2020-11-28 07:37:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:31,014 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 435 transitions. [2020-11-28 07:37:31,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 435 transitions. [2020-11-28 07:37:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-11-28 07:37:31,020 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:31,020 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:31,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 07:37:31,020 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:31,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1557538073, now seen corresponding path program 1 times [2020-11-28 07:37:31,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:31,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103382938] [2020-11-28 07:37:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-28 07:37:31,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103382938] [2020-11-28 07:37:31,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:31,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:31,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473370403] [2020-11-28 07:37:31,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:31,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:31,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:31,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,093 INFO L87 Difference]: Start difference. First operand 261 states and 435 transitions. Second operand 3 states. [2020-11-28 07:37:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:31,300 INFO L93 Difference]: Finished difference Result 527 states and 877 transitions. [2020-11-28 07:37:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:31,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-11-28 07:37:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:31,303 INFO L225 Difference]: With dead ends: 527 [2020-11-28 07:37:31,303 INFO L226 Difference]: Without dead ends: 268 [2020-11-28 07:37:31,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-11-28 07:37:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-11-28 07:37:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-11-28 07:37:31,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 438 transitions. [2020-11-28 07:37:31,314 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 438 transitions. Word has length 88 [2020-11-28 07:37:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:31,315 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 438 transitions. [2020-11-28 07:37:31,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 438 transitions. [2020-11-28 07:37:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-28 07:37:31,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:31,316 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:31,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 07:37:31,317 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:31,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:31,318 INFO L82 PathProgramCache]: Analyzing trace with hash 256027284, now seen corresponding path program 1 times [2020-11-28 07:37:31,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:31,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507657189] [2020-11-28 07:37:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:31,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507657189] [2020-11-28 07:37:31,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:31,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:31,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559301497] [2020-11-28 07:37:31,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:31,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:31,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:31,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,379 INFO L87 Difference]: Start difference. First operand 268 states and 438 transitions. Second operand 3 states. [2020-11-28 07:37:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:31,595 INFO L93 Difference]: Finished difference Result 563 states and 923 transitions. [2020-11-28 07:37:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:31,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-11-28 07:37:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:31,598 INFO L225 Difference]: With dead ends: 563 [2020-11-28 07:37:31,598 INFO L226 Difference]: Without dead ends: 297 [2020-11-28 07:37:31,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-28 07:37:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-11-28 07:37:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-11-28 07:37:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 481 transitions. [2020-11-28 07:37:31,615 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 481 transitions. Word has length 92 [2020-11-28 07:37:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:31,615 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 481 transitions. [2020-11-28 07:37:31,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 481 transitions. [2020-11-28 07:37:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-28 07:37:31,617 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:31,617 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:31,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 07:37:31,618 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:31,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:31,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2020284277, now seen corresponding path program 1 times [2020-11-28 07:37:31,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:31,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102447915] [2020-11-28 07:37:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:31,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102447915] [2020-11-28 07:37:31,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:31,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:31,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920629796] [2020-11-28 07:37:31,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:31,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:31,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:31,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,684 INFO L87 Difference]: Start difference. First operand 295 states and 481 transitions. Second operand 3 states. [2020-11-28 07:37:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:31,921 INFO L93 Difference]: Finished difference Result 590 states and 962 transitions. [2020-11-28 07:37:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:31,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-11-28 07:37:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:31,925 INFO L225 Difference]: With dead ends: 590 [2020-11-28 07:37:31,925 INFO L226 Difference]: Without dead ends: 297 [2020-11-28 07:37:31,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-28 07:37:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-11-28 07:37:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-11-28 07:37:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 477 transitions. [2020-11-28 07:37:31,942 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 477 transitions. Word has length 93 [2020-11-28 07:37:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:31,942 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 477 transitions. [2020-11-28 07:37:31,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 477 transitions. [2020-11-28 07:37:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-28 07:37:31,945 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:31,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:31,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 07:37:31,946 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1270737060, now seen corresponding path program 1 times [2020-11-28 07:37:31,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:31,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302428029] [2020-11-28 07:37:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:32,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302428029] [2020-11-28 07:37:32,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:32,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:32,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719104776] [2020-11-28 07:37:32,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:32,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:32,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:32,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,014 INFO L87 Difference]: Start difference. First operand 295 states and 477 transitions. Second operand 3 states. [2020-11-28 07:37:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:32,231 INFO L93 Difference]: Finished difference Result 621 states and 1008 transitions. [2020-11-28 07:37:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:32,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-11-28 07:37:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:32,234 INFO L225 Difference]: With dead ends: 621 [2020-11-28 07:37:32,234 INFO L226 Difference]: Without dead ends: 328 [2020-11-28 07:37:32,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-11-28 07:37:32,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-11-28 07:37:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-11-28 07:37:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 515 transitions. [2020-11-28 07:37:32,251 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 515 transitions. Word has length 94 [2020-11-28 07:37:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:32,252 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 515 transitions. [2020-11-28 07:37:32,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 515 transitions. [2020-11-28 07:37:32,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-28 07:37:32,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:32,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:32,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 07:37:32,254 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:32,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1568897396, now seen corresponding path program 1 times [2020-11-28 07:37:32,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:32,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906709705] [2020-11-28 07:37:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:32,322 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-28 07:37:32,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906709705] [2020-11-28 07:37:32,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:32,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:32,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795466150] [2020-11-28 07:37:32,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:32,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:32,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:32,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,325 INFO L87 Difference]: Start difference. First operand 320 states and 515 transitions. Second operand 3 states. [2020-11-28 07:37:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:32,523 INFO L93 Difference]: Finished difference Result 659 states and 1061 transitions. [2020-11-28 07:37:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:32,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-11-28 07:37:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:32,527 INFO L225 Difference]: With dead ends: 659 [2020-11-28 07:37:32,527 INFO L226 Difference]: Without dead ends: 341 [2020-11-28 07:37:32,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-11-28 07:37:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2020-11-28 07:37:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-28 07:37:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 540 transitions. [2020-11-28 07:37:32,546 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 540 transitions. Word has length 95 [2020-11-28 07:37:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:32,547 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 540 transitions. [2020-11-28 07:37:32,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 540 transitions. [2020-11-28 07:37:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-28 07:37:32,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:32,549 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:32,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 07:37:32,549 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:32,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:32,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1983415941, now seen corresponding path program 1 times [2020-11-28 07:37:32,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:32,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337212707] [2020-11-28 07:37:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 07:37:32,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337212707] [2020-11-28 07:37:32,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:32,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:32,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507393403] [2020-11-28 07:37:32,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:32,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:32,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:32,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,606 INFO L87 Difference]: Start difference. First operand 339 states and 540 transitions. Second operand 3 states. [2020-11-28 07:37:32,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:32,835 INFO L93 Difference]: Finished difference Result 684 states and 1091 transitions. [2020-11-28 07:37:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:32,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-11-28 07:37:32,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:32,838 INFO L225 Difference]: With dead ends: 684 [2020-11-28 07:37:32,838 INFO L226 Difference]: Without dead ends: 347 [2020-11-28 07:37:32,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-11-28 07:37:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 339. [2020-11-28 07:37:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-28 07:37:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 535 transitions. [2020-11-28 07:37:32,855 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 535 transitions. Word has length 95 [2020-11-28 07:37:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:32,856 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 535 transitions. [2020-11-28 07:37:32,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 535 transitions. [2020-11-28 07:37:32,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-28 07:37:32,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:32,858 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:32,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 07:37:32,858 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:32,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:32,859 INFO L82 PathProgramCache]: Analyzing trace with hash -567419211, now seen corresponding path program 1 times [2020-11-28 07:37:32,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:32,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180341264] [2020-11-28 07:37:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-28 07:37:32,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180341264] [2020-11-28 07:37:32,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:32,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:32,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141938147] [2020-11-28 07:37:32,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:32,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:32,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:32,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:32,903 INFO L87 Difference]: Start difference. First operand 339 states and 535 transitions. Second operand 3 states. [2020-11-28 07:37:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:33,083 INFO L93 Difference]: Finished difference Result 678 states and 1070 transitions. [2020-11-28 07:37:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:33,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-11-28 07:37:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:33,086 INFO L225 Difference]: With dead ends: 678 [2020-11-28 07:37:33,086 INFO L226 Difference]: Without dead ends: 341 [2020-11-28 07:37:33,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-11-28 07:37:33,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2020-11-28 07:37:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-28 07:37:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 529 transitions. [2020-11-28 07:37:33,106 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 529 transitions. Word has length 96 [2020-11-28 07:37:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:33,106 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 529 transitions. [2020-11-28 07:37:33,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 529 transitions. [2020-11-28 07:37:33,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-11-28 07:37:33,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:33,108 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:33,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 07:37:33,109 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:33,109 INFO L82 PathProgramCache]: Analyzing trace with hash -960376249, now seen corresponding path program 1 times [2020-11-28 07:37:33,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:33,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114492293] [2020-11-28 07:37:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:33,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:33,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:33,247 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:37:33,248 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:37:33,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 07:37:33,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:33 BoogieIcfgContainer [2020-11-28 07:37:33,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:33,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:33,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:33,383 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:33,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27" (3/4) ... [2020-11-28 07:37:33,385 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:37:33,531 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1e0a4067-271d-423e-932c-6e4db1b9cf20/bin/utaipan/witness.graphml [2020-11-28 07:37:33,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:33,533 INFO L168 Benchmark]: Toolchain (without parser) took 7608.36 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 63.9 MB in the beginning and 137.5 MB in the end (delta: -73.6 MB). Peak memory consumption was 92.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,534 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:33,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.89 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 66.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.20 ms. Allocated memory is still 94.4 MB. Free memory was 66.4 MB in the beginning and 63.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,535 INFO L168 Benchmark]: Boogie Preprocessor took 60.93 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,535 INFO L168 Benchmark]: RCFGBuilder took 1422.72 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 53.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,536 INFO L168 Benchmark]: TraceAbstraction took 5403.90 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 53.8 MB in the beginning and 54.4 MB in the end (delta: -518.5 kB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,536 INFO L168 Benchmark]: Witness Printer took 148.89 ms. Allocated memory is still 167.8 MB. Free memory was 54.4 MB in the beginning and 137.5 MB in the end (delta: -83.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:33,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 477.89 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 66.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.20 ms. Allocated memory is still 94.4 MB. Free memory was 66.4 MB in the beginning and 63.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.93 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1422.72 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 53.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5403.90 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 53.8 MB in the beginning and 54.4 MB in the end (delta: -518.5 kB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. * Witness Printer took 148.89 ms. Allocated memory is still 167.8 MB. Free memory was 54.4 MB in the beginning and 137.5 MB in the end (delta: -83.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L618] int s ; [L619] int tmp ; [L623] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND TRUE \read(s__hit) [L292] s__state = 8656 [L296] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] tmp___9 = __VERIFIER_nondet_int() [L492] COND FALSE !(! tmp___9) [L496] ret = __VERIFIER_nondet_int() [L497] COND TRUE blastFlag == 2 [L498] blastFlag = 3 [L500] COND FALSE !(ret <= 0) [L503] s__state = 8672 [L504] s__init_num = 0 [L505] tmp___10 = __VERIFIER_nondet_int() [L506] COND FALSE !(! tmp___10) [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND FALSE !(blastFlag == 4) [L517] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_1.cil-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1274 SDtfs, 1579 SDslu, 168 SDs, 0 SdLazy, 1291 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 46 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1224 NumberOfCodeBlocks, 1224 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1101 ConstructedInterpolants, 0 QuantifiedInterpolants, 156725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 603/603 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...