./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/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 87a4b11fd60d88478c9ad5217320492e74a11c2e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2020-12-09 05:46:07,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:46:07,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:46:07,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:46:07,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:46:07,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:46:07,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:46:07,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:46:07,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:46:07,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:46:07,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:46:07,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:46:07,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:46:07,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:46:07,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:46:07,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:46:07,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:46:07,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:46:07,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:46:07,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:46:07,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:46:07,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:46:07,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:46:07,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:46:07,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:46:07,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:46:07,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:46:07,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:46:07,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:46:07,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:46:07,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:46:07,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:46:07,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:46:07,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:46:07,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:46:07,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:46:07,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:46:07,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:46:07,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:46:07,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:46:07,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:46:07,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:46:07,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:46:07,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:46:07,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:46:07,141 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:46:07,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:46:07,146 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:46:07,146 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:46:07,147 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:46:07,147 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:46:07,148 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:46:07,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:46:07,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:46:07,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:46:07,149 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:46:07,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:46:07,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:46:07,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:46:07,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:46:07,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:46:07,152 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_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87a4b11fd60d88478c9ad5217320492e74a11c2e [2020-12-09 05:46:07,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:46:07,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:46:07,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:46:07,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:46:07,349 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:46:07,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c [2020-12-09 05:46:07,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/data/c575aaf6b/1bd24c2208ad4d81beb9f3160fd83a3c/FLAG04da975ae [2020-12-09 05:46:07,754 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:46:07,754 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c [2020-12-09 05:46:07,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/data/c575aaf6b/1bd24c2208ad4d81beb9f3160fd83a3c/FLAG04da975ae [2020-12-09 05:46:07,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/data/c575aaf6b/1bd24c2208ad4d81beb9f3160fd83a3c [2020-12-09 05:46:07,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:46:07,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:46:07,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:46:07,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:46:07,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:46:07,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:46:07" (1/1) ... [2020-12-09 05:46:07,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdbb437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:07, skipping insertion in model container [2020-12-09 05:46:07,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:46:07" (1/1) ... [2020-12-09 05:46:07,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:46:07,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:46:07,962 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c[43262,43275] [2020-12-09 05:46:07,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:46:07,974 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:46:08,012 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c[43262,43275] [2020-12-09 05:46:08,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:46:08,025 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:46:08,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08 WrapperNode [2020-12-09 05:46:08,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:46:08,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:46:08,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:46:08,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:46:08,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:46:08,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:46:08,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:46:08,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:46:08,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... [2020-12-09 05:46:08,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:46:08,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:46:08,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:46:08,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:46:08,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/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 [2020-12-09 05:46:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:46:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:46:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:46:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:46:08,266 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 05:46:08,619 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-09 05:46:08,620 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-09 05:46:08,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:46:08,832 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 05:46:08,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:46:08 BoogieIcfgContainer [2020-12-09 05:46:08,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:46:08,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:46:08,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:46:08,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:46:08,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:46:07" (1/3) ... [2020-12-09 05:46:08,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1714fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:46:08, skipping insertion in model container [2020-12-09 05:46:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:46:08" (2/3) ... [2020-12-09 05:46:08,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1714fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:46:08, skipping insertion in model container [2020-12-09 05:46:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:46:08" (3/3) ... [2020-12-09 05:46:08,842 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_10.cil.c [2020-12-09 05:46:08,860 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:46:08,864 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:46:08,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:46:08,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:46:08,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:46:08,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:46:08,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:46:08,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:46:08,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:46:08,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:46:08,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:46:08,916 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-12-09 05:46:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 05:46:08,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:08,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:46:08,922 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 197095985, now seen corresponding path program 1 times [2020-12-09 05:46:08,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:08,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697013188] [2020-12-09 05:46:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697013188] [2020-12-09 05:46:09,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892398306] [2020-12-09 05:46:09,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,117 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-12-09 05:46:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:09,262 INFO L93 Difference]: Finished difference Result 240 states and 415 transitions. [2020-12-09 05:46:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:09,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-09 05:46:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:09,273 INFO L225 Difference]: With dead ends: 240 [2020-12-09 05:46:09,274 INFO L226 Difference]: Without dead ends: 125 [2020-12-09 05:46:09,276 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 [2020-12-09 05:46:09,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-12-09 05:46:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-12-09 05:46:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-09 05:46:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 188 transitions. [2020-12-09 05:46:09,314 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 188 transitions. Word has length 17 [2020-12-09 05:46:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:09,314 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 188 transitions. [2020-12-09 05:46:09,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 188 transitions. [2020-12-09 05:46:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 05:46:09,315 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:09,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:46:09,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 05:46:09,315 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:09,316 INFO L82 PathProgramCache]: Analyzing trace with hash -587941746, now seen corresponding path program 1 times [2020-12-09 05:46:09,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:09,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463700105] [2020-12-09 05:46:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463700105] [2020-12-09 05:46:09,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687133102] [2020-12-09 05:46:09,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,363 INFO L87 Difference]: Start difference. First operand 125 states and 188 transitions. Second operand 3 states. [2020-12-09 05:46:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:09,469 INFO L93 Difference]: Finished difference Result 265 states and 401 transitions. [2020-12-09 05:46:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:09,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 05:46:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:09,471 INFO L225 Difference]: With dead ends: 265 [2020-12-09 05:46:09,471 INFO L226 Difference]: Without dead ends: 142 [2020-12-09 05:46:09,472 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 [2020-12-09 05:46:09,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-09 05:46:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-12-09 05:46:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-09 05:46:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 212 transitions. [2020-12-09 05:46:09,483 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 212 transitions. Word has length 18 [2020-12-09 05:46:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:09,483 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 212 transitions. [2020-12-09 05:46:09,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 212 transitions. [2020-12-09 05:46:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 05:46:09,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:09,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:46:09,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 05:46:09,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash 857485952, now seen corresponding path program 1 times [2020-12-09 05:46:09,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:09,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411728038] [2020-12-09 05:46:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411728038] [2020-12-09 05:46:09,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385589434] [2020-12-09 05:46:09,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,531 INFO L87 Difference]: Start difference. First operand 140 states and 212 transitions. Second operand 3 states. [2020-12-09 05:46:09,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:09,626 INFO L93 Difference]: Finished difference Result 285 states and 436 transitions. [2020-12-09 05:46:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:09,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 05:46:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:09,627 INFO L225 Difference]: With dead ends: 285 [2020-12-09 05:46:09,627 INFO L226 Difference]: Without dead ends: 147 [2020-12-09 05:46:09,628 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 [2020-12-09 05:46:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-09 05:46:09,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-12-09 05:46:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-09 05:46:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 225 transitions. [2020-12-09 05:46:09,636 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 225 transitions. Word has length 18 [2020-12-09 05:46:09,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:09,636 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 225 transitions. [2020-12-09 05:46:09,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:09,636 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 225 transitions. [2020-12-09 05:46:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 05:46:09,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:09,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:46:09,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 05:46:09,637 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:09,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:09,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2043650423, now seen corresponding path program 1 times [2020-12-09 05:46:09,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:09,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192473608] [2020-12-09 05:46:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192473608] [2020-12-09 05:46:09,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074936077] [2020-12-09 05:46:09,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,667 INFO L87 Difference]: Start difference. First operand 147 states and 225 transitions. Second operand 3 states. [2020-12-09 05:46:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:09,755 INFO L93 Difference]: Finished difference Result 300 states and 457 transitions. [2020-12-09 05:46:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:09,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 05:46:09,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:09,757 INFO L225 Difference]: With dead ends: 300 [2020-12-09 05:46:09,757 INFO L226 Difference]: Without dead ends: 155 [2020-12-09 05:46:09,759 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 [2020-12-09 05:46:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-09 05:46:09,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 147. [2020-12-09 05:46:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-09 05:46:09,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 223 transitions. [2020-12-09 05:46:09,770 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 223 transitions. Word has length 19 [2020-12-09 05:46:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:09,770 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 223 transitions. [2020-12-09 05:46:09,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:09,771 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 223 transitions. [2020-12-09 05:46:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 05:46:09,772 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:09,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:46:09,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 05:46:09,772 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:09,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1838230737, now seen corresponding path program 1 times [2020-12-09 05:46:09,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:09,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627675251] [2020-12-09 05:46:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627675251] [2020-12-09 05:46:09,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370147101] [2020-12-09 05:46:09,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,813 INFO L87 Difference]: Start difference. First operand 147 states and 223 transitions. Second operand 3 states. [2020-12-09 05:46:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:09,906 INFO L93 Difference]: Finished difference Result 294 states and 446 transitions. [2020-12-09 05:46:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:09,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 05:46:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:09,907 INFO L225 Difference]: With dead ends: 294 [2020-12-09 05:46:09,907 INFO L226 Difference]: Without dead ends: 149 [2020-12-09 05:46:09,908 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 [2020-12-09 05:46:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-09 05:46:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2020-12-09 05:46:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-09 05:46:09,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 222 transitions. [2020-12-09 05:46:09,914 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 222 transitions. Word has length 19 [2020-12-09 05:46:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:09,914 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 222 transitions. [2020-12-09 05:46:09,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 222 transitions. [2020-12-09 05:46:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 05:46:09,915 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:09,915 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] [2020-12-09 05:46:09,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 05:46:09,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:09,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1596313288, now seen corresponding path program 1 times [2020-12-09 05:46:09,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:09,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776708006] [2020-12-09 05:46:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:09,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776708006] [2020-12-09 05:46:09,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:09,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:09,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719621987] [2020-12-09 05:46:09,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:09,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:09,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:09,939 INFO L87 Difference]: Start difference. First operand 147 states and 222 transitions. Second operand 3 states. [2020-12-09 05:46:10,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:10,015 INFO L93 Difference]: Finished difference Result 300 states and 451 transitions. [2020-12-09 05:46:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:10,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-09 05:46:10,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:10,016 INFO L225 Difference]: With dead ends: 300 [2020-12-09 05:46:10,016 INFO L226 Difference]: Without dead ends: 155 [2020-12-09 05:46:10,016 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 [2020-12-09 05:46:10,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-09 05:46:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 147. [2020-12-09 05:46:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-09 05:46:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 220 transitions. [2020-12-09 05:46:10,024 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 220 transitions. Word has length 20 [2020-12-09 05:46:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:10,024 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 220 transitions. [2020-12-09 05:46:10,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 220 transitions. [2020-12-09 05:46:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 05:46:10,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:10,025 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] [2020-12-09 05:46:10,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 05:46:10,025 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:10,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:10,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1713863086, now seen corresponding path program 1 times [2020-12-09 05:46:10,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:10,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897812032] [2020-12-09 05:46:10,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:46:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:46:10,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897812032] [2020-12-09 05:46:10,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:46:10,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:46:10,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241171971] [2020-12-09 05:46:10,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:46:10,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:46:10,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:46:10,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:46:10,053 INFO L87 Difference]: Start difference. First operand 147 states and 220 transitions. Second operand 3 states. [2020-12-09 05:46:10,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:46:10,129 INFO L93 Difference]: Finished difference Result 300 states and 447 transitions. [2020-12-09 05:46:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:46:10,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 05:46:10,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:46:10,131 INFO L225 Difference]: With dead ends: 300 [2020-12-09 05:46:10,131 INFO L226 Difference]: Without dead ends: 155 [2020-12-09 05:46:10,131 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 [2020-12-09 05:46:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-09 05:46:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 147. [2020-12-09 05:46:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-09 05:46:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 218 transitions. [2020-12-09 05:46:10,136 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 218 transitions. Word has length 21 [2020-12-09 05:46:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:46:10,137 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 218 transitions. [2020-12-09 05:46:10,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:46:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 218 transitions. [2020-12-09 05:46:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 05:46:10,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:46:10,138 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] [2020-12-09 05:46:10,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 05:46:10,138 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:46:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:46:10,138 INFO L82 PathProgramCache]: Analyzing trace with hash 913499572, now seen corresponding path program 1 times [2020-12-09 05:46:10,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:46:10,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171957765] [2020-12-09 05:46:10,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:46:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:46:10,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:46:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:46:10,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:46:10,191 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 05:46:10,191 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 05:46:10,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 05:46:10,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:46:10 BoogieIcfgContainer [2020-12-09 05:46:10,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:46:10,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:46:10,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:46:10,222 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:46:10,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:46:08" (3/4) ... [2020-12-09 05:46:10,223 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 05:46:10,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b8c346e-b0c8-4447-9f1d-8ea886eed2f8/bin/utaipan/witness.graphml [2020-12-09 05:46:10,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:46:10,271 INFO L168 Benchmark]: Toolchain (without parser) took 2491.84 ms. Allocated memory was 90.2 MB in the beginning and 142.6 MB in the end (delta: 52.4 MB). Free memory was 52.8 MB in the beginning and 77.4 MB in the end (delta: -24.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,272 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 90.2 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:46:10,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.37 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 59.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.85 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 56.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,272 INFO L168 Benchmark]: Boogie Preprocessor took 34.65 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,273 INFO L168 Benchmark]: RCFGBuilder took 721.68 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 54.8 MB in the beginning and 76.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,273 INFO L168 Benchmark]: TraceAbstraction took 1384.54 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 76.5 MB in the beginning and 82.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,273 INFO L168 Benchmark]: Witness Printer took 48.71 ms. Allocated memory is still 142.6 MB. Free memory was 82.6 MB in the beginning and 77.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 05:46:10,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 90.2 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.37 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 59.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.85 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 56.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.65 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 721.68 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 54.8 MB in the beginning and 76.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1384.54 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 76.5 MB in the beginning and 82.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 48.71 ms. Allocated memory is still 142.6 MB. Free memory was 82.6 MB in the beginning and 77.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 630]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L636] int s ; [L637] int tmp ; [L641] 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 ; [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 ; [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 ; [L74] s__s3__tmp__new_cipher__algorithms = 0 [L75] __cil_tmp56 = 0 [L76] __cil_tmp57 = 0 [L77] __cil_tmp58 = 0 [L78] __cil_tmp59 = 0 [L79] __cil_tmp60 = 0 [L80] __cil_tmp61 = 0 [L81] s__s3__tmp__reuse_message = 0 [L82] s__state = initial_state [L83] blastFlag = 0 [L84] Time = tmp [L85] cb = 0 [L86] ret = -1 [L87] skip = 0 [L88] got_new_session = 0 [L89] COND TRUE s__info_callback != 0 [L90] cb = s__info_callback [L96] s__in_handshake ++ [L97] COND FALSE !(tmp___1 + 12288) [L102] COND FALSE !(s__cert == 0) [L106] COND TRUE 1 [L108] state = s__state [L109] COND FALSE !(s__state == 12292) [L112] COND FALSE !(s__state == 16384) [L115] COND FALSE !(s__state == 8192) [L118] COND FALSE !(s__state == 24576) [L121] COND FALSE !(s__state == 8195) [L124] COND FALSE !(s__state == 8480) [L127] COND FALSE !(s__state == 8481) [L130] COND FALSE !(s__state == 8482) [L133] COND TRUE s__state == 8464 [L277] s__shutdown = 0 [L278] ret = __VERIFIER_nondet_int() [L279] COND TRUE blastFlag == 0 [L280] blastFlag = 1 [L282] COND FALSE !(ret <= 0) [L285] got_new_session = 1 [L286] s__state = 8496 [L287] s__init_num = 0 [L593] COND TRUE ! s__s3__tmp__reuse_message [L594] COND TRUE ! skip [L595] COND TRUE state == 8464 [L596] COND TRUE s__state == 8496 [L597] COND TRUE cb != 0 [L598] COND TRUE s__info_callback != 0 [L630] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 689 SDtfs, 964 SDslu, 106 SDs, 0 SdLazy, 556 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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...