./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e0d5536f9cd1f3a5d711f95a0369e25308fe790 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:30:34,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:30:34,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:30:34,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:30:34,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:30:34,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:30:34,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:30:34,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:30:34,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:30:34,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:30:34,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:30:34,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:30:34,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:30:34,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:30:34,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:30:34,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:30:34,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:30:34,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:30:34,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:30:34,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:30:34,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:30:34,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:30:34,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:30:34,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:30:34,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:30:34,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:30:34,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:30:34,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:30:34,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:30:34,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:30:34,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:30:34,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:30:34,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:30:34,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:30:34,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:30:34,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:30:34,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:30:34,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:30:34,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:30:34,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:30:34,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:30:34,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 09:30:34,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:30:34,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:30:34,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:30:34,511 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:30:34,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:30:34,511 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:30:34,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:30:34,511 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:30:34,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:30:34,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:30:34,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:30:34,512 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:30:34,512 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:30:34,512 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:30:34,513 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:30:34,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 09:30:34,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 09:30:34,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:30:34,514 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:30:34,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 09:30:34,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:30:34,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:30:34,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:30:34,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:30:34,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:30:34,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:30:34,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:30:34,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:30:34,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:30:34,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:30:34,517 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:30:34,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:30:34,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:30:34,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:30:34,517 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_68a8ff3c-6e98-443e-882d-6b230e926063/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e0d5536f9cd1f3a5d711f95a0369e25308fe790 [2020-12-09 09:30:34,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:30:34,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:30:34,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:30:34,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:30:34,724 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:30:34,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-12-09 09:30:34,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/data/36fcc08aa/50641349e48148eab008387f5408c062/FLAGb683fbce0 [2020-12-09 09:30:35,162 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:30:35,163 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-12-09 09:30:35,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/data/36fcc08aa/50641349e48148eab008387f5408c062/FLAGb683fbce0 [2020-12-09 09:30:35,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/data/36fcc08aa/50641349e48148eab008387f5408c062 [2020-12-09 09:30:35,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:30:35,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:30:35,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:30:35,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:30:35,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:30:35,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68201ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35, skipping insertion in model container [2020-12-09 09:30:35,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:30:35,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:30:35,387 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_68a8ff3c-6e98-443e-882d-6b230e926063/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2020-12-09 09:30:35,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:30:35,402 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:30:35,454 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_68a8ff3c-6e98-443e-882d-6b230e926063/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2020-12-09 09:30:35,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:30:35,467 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:30:35,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35 WrapperNode [2020-12-09 09:30:35,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:30:35,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:30:35,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:30:35,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:30:35,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:30:35,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:30:35,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:30:35,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:30:35,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... [2020-12-09 09:30:35,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:30:35,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:30:35,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:30:35,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:30:35,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/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 09:30:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:30:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:30:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:30:35,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:30:35,740 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,748 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,758 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,767 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,774 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,779 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,786 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,793 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,801 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,806 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,812 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:35,828 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:30:36,331 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2020-12-09 09:30:36,332 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2020-12-09 09:30:36,333 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2020-12-09 09:30:36,333 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-12-09 09:30:36,333 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-12-09 09:30:36,333 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2020-12-09 09:30:36,333 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2020-12-09 09:30:36,334 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-12-09 09:30:36,335 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-12-09 09:30:36,335 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2020-12-09 09:30:36,335 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2020-12-09 09:30:36,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:30:36,944 INFO L299 CfgBuilder]: Removed 152 assume(true) statements. [2020-12-09 09:30:36,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:36 BoogieIcfgContainer [2020-12-09 09:30:36,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:30:36,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:30:36,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:30:36,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:30:36,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:30:35" (1/3) ... [2020-12-09 09:30:36,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66eaa48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:30:36, skipping insertion in model container [2020-12-09 09:30:36,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:35" (2/3) ... [2020-12-09 09:30:36,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66eaa48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:30:36, skipping insertion in model container [2020-12-09 09:30:36,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:36" (3/3) ... [2020-12-09 09:30:36,952 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-12-09 09:30:36,961 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:30:36,964 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-12-09 09:30:36,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-12-09 09:30:36,986 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:30:36,986 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 09:30:36,986 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:30:36,986 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:30:36,986 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:30:36,986 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:30:36,986 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:30:36,986 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:30:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-12-09 09:30:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 09:30:37,003 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 09:30:37,004 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,007 INFO L82 PathProgramCache]: Analyzing trace with hash 39703571, now seen corresponding path program 1 times [2020-12-09 09:30:37,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212138598] [2020-12-09 09:30:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,131 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 09:30:37,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212138598] [2020-12-09 09:30:37,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:30:37,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056642597] [2020-12-09 09:30:37,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,146 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-12-09 09:30:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,185 INFO L93 Difference]: Finished difference Result 202 states and 268 transitions. [2020-12-09 09:30:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 09:30:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,198 INFO L225 Difference]: With dead ends: 202 [2020-12-09 09:30:37,199 INFO L226 Difference]: Without dead ends: 200 [2020-12-09 09:30:37,200 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 09:30:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-09 09:30:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2020-12-09 09:30:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-12-09 09:30:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2020-12-09 09:30:37,242 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 4 [2020-12-09 09:30:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,242 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2020-12-09 09:30:37,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2020-12-09 09:30:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 09:30:37,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:30:37,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:30:37,244 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1230542788, now seen corresponding path program 1 times [2020-12-09 09:30:37,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659422055] [2020-12-09 09:30:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,294 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 09:30:37,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659422055] [2020-12-09 09:30:37,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106237309] [2020-12-09 09:30:37,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,296 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand 3 states. [2020-12-09 09:30:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,398 INFO L93 Difference]: Finished difference Result 186 states and 252 transitions. [2020-12-09 09:30:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 09:30:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,400 INFO L225 Difference]: With dead ends: 186 [2020-12-09 09:30:37,400 INFO L226 Difference]: Without dead ends: 186 [2020-12-09 09:30:37,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-12-09 09:30:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2020-12-09 09:30:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-09 09:30:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2020-12-09 09:30:37,414 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 250 transitions. Word has length 9 [2020-12-09 09:30:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,414 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-12-09 09:30:37,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 250 transitions. [2020-12-09 09:30:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 09:30:37,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:30:37,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 09:30:37,416 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,416 INFO L82 PathProgramCache]: Analyzing trace with hash 289292697, now seen corresponding path program 1 times [2020-12-09 09:30:37,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524899469] [2020-12-09 09:30:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,450 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 09:30:37,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524899469] [2020-12-09 09:30:37,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 09:30:37,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736029416] [2020-12-09 09:30:37,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,452 INFO L87 Difference]: Start difference. First operand 183 states and 250 transitions. Second operand 3 states. [2020-12-09 09:30:37,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,457 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2020-12-09 09:30:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 09:30:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,459 INFO L225 Difference]: With dead ends: 182 [2020-12-09 09:30:37,459 INFO L226 Difference]: Without dead ends: 180 [2020-12-09 09:30:37,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:30:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-09 09:30:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-12-09 09:30:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-09 09:30:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2020-12-09 09:30:37,470 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 9 [2020-12-09 09:30:37,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,470 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2020-12-09 09:30:37,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2020-12-09 09:30:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 09:30:37,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:30:37,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 09:30:37,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1593154507, now seen corresponding path program 1 times [2020-12-09 09:30:37,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339676621] [2020-12-09 09:30:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,509 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 09:30:37,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339676621] [2020-12-09 09:30:37,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563757535] [2020-12-09 09:30:37,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,512 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand 3 states. [2020-12-09 09:30:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,537 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2020-12-09 09:30:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-09 09:30:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,539 INFO L225 Difference]: With dead ends: 182 [2020-12-09 09:30:37,539 INFO L226 Difference]: Without dead ends: 182 [2020-12-09 09:30:37,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-12-09 09:30:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 150. [2020-12-09 09:30:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-12-09 09:30:37,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2020-12-09 09:30:37,547 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 10 [2020-12-09 09:30:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,547 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2020-12-09 09:30:37,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,548 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2020-12-09 09:30:37,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 09:30:37,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:30:37,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 09:30:37,549 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1062565371, now seen corresponding path program 1 times [2020-12-09 09:30:37,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563313487] [2020-12-09 09:30:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,601 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 09:30:37,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563313487] [2020-12-09 09:30:37,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206526448] [2020-12-09 09:30:37,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,603 INFO L87 Difference]: Start difference. First operand 150 states and 196 transitions. Second operand 3 states. [2020-12-09 09:30:37,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,661 INFO L93 Difference]: Finished difference Result 136 states and 182 transitions. [2020-12-09 09:30:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-09 09:30:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,662 INFO L225 Difference]: With dead ends: 136 [2020-12-09 09:30:37,662 INFO L226 Difference]: Without dead ends: 136 [2020-12-09 09:30:37,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-09 09:30:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-12-09 09:30:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-09 09:30:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2020-12-09 09:30:37,667 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 15 [2020-12-09 09:30:37,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,667 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2020-12-09 09:30:37,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,667 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2020-12-09 09:30:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 09:30:37,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,669 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 09:30:37,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 09:30:37,669 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,670 INFO L82 PathProgramCache]: Analyzing trace with hash -35411303, now seen corresponding path program 1 times [2020-12-09 09:30:37,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522594271] [2020-12-09 09:30:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,712 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 09:30:37,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522594271] [2020-12-09 09:30:37,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457539242] [2020-12-09 09:30:37,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,714 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand 3 states. [2020-12-09 09:30:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,731 INFO L93 Difference]: Finished difference Result 150 states and 198 transitions. [2020-12-09 09:30:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 09:30:37,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,733 INFO L225 Difference]: With dead ends: 150 [2020-12-09 09:30:37,733 INFO L226 Difference]: Without dead ends: 150 [2020-12-09 09:30:37,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-09 09:30:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2020-12-09 09:30:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-09 09:30:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 181 transitions. [2020-12-09 09:30:37,737 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 181 transitions. Word has length 18 [2020-12-09 09:30:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,737 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 181 transitions. [2020-12-09 09:30:37,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 181 transitions. [2020-12-09 09:30:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 09:30:37,739 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,739 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 09:30:37,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 09:30:37,740 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,740 INFO L82 PathProgramCache]: Analyzing trace with hash -24666945, now seen corresponding path program 1 times [2020-12-09 09:30:37,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830720327] [2020-12-09 09:30:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,778 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 09:30:37,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830720327] [2020-12-09 09:30:37,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715439379] [2020-12-09 09:30:37,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,781 INFO L87 Difference]: Start difference. First operand 136 states and 181 transitions. Second operand 3 states. [2020-12-09 09:30:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,844 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2020-12-09 09:30:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 09:30:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,845 INFO L225 Difference]: With dead ends: 133 [2020-12-09 09:30:37,845 INFO L226 Difference]: Without dead ends: 133 [2020-12-09 09:30:37,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-09 09:30:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-12-09 09:30:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-09 09:30:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2020-12-09 09:30:37,848 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 18 [2020-12-09 09:30:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,848 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2020-12-09 09:30:37,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2020-12-09 09:30:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 09:30:37,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,849 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 09:30:37,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 09:30:37,849 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2116751506, now seen corresponding path program 1 times [2020-12-09 09:30:37,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850589177] [2020-12-09 09:30:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,881 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 09:30:37,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850589177] [2020-12-09 09:30:37,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368622478] [2020-12-09 09:30:37,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:37,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:37,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,883 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand 3 states. [2020-12-09 09:30:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:37,893 INFO L93 Difference]: Finished difference Result 145 states and 191 transitions. [2020-12-09 09:30:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:37,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 09:30:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:37,895 INFO L225 Difference]: With dead ends: 145 [2020-12-09 09:30:37,895 INFO L226 Difference]: Without dead ends: 145 [2020-12-09 09:30:37,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-09 09:30:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 131. [2020-12-09 09:30:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-09 09:30:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 174 transitions. [2020-12-09 09:30:37,899 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 174 transitions. Word has length 19 [2020-12-09 09:30:37,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:37,899 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 174 transitions. [2020-12-09 09:30:37,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:37,899 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 174 transitions. [2020-12-09 09:30:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 09:30:37,900 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:37,900 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 09:30:37,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 09:30:37,900 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1505435899, now seen corresponding path program 1 times [2020-12-09 09:30:37,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:37,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354101309] [2020-12-09 09:30:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:37,947 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 09:30:37,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354101309] [2020-12-09 09:30:37,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:37,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:37,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827083335] [2020-12-09 09:30:37,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:30:37,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:37,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:30:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:30:37,948 INFO L87 Difference]: Start difference. First operand 131 states and 174 transitions. Second operand 4 states. [2020-12-09 09:30:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,031 INFO L93 Difference]: Finished difference Result 131 states and 173 transitions. [2020-12-09 09:30:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:30:38,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-09 09:30:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,032 INFO L225 Difference]: With dead ends: 131 [2020-12-09 09:30:38,032 INFO L226 Difference]: Without dead ends: 131 [2020-12-09 09:30:38,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:30:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-09 09:30:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-12-09 09:30:38,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-09 09:30:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2020-12-09 09:30:38,035 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 173 transitions. Word has length 20 [2020-12-09 09:30:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,035 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 173 transitions. [2020-12-09 09:30:38,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:30:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 173 transitions. [2020-12-09 09:30:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 09:30:38,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:38,036 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 09:30:38,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 09:30:38,036 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1573867582, now seen corresponding path program 1 times [2020-12-09 09:30:38,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:38,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086161590] [2020-12-09 09:30:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:38,055 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 09:30:38,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086161590] [2020-12-09 09:30:38,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:38,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:38,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618397549] [2020-12-09 09:30:38,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:38,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:38,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:38,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,057 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. Second operand 3 states. [2020-12-09 09:30:38,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,064 INFO L93 Difference]: Finished difference Result 126 states and 166 transitions. [2020-12-09 09:30:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:38,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 09:30:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,065 INFO L225 Difference]: With dead ends: 126 [2020-12-09 09:30:38,065 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 09:30:38,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 09:30:38,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 09:30:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 09:30:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-12-09 09:30:38,066 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2020-12-09 09:30:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,067 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-12-09 09:30:38,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-12-09 09:30:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 09:30:38,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:38,067 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 09:30:38,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 09:30:38,068 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash -2016224929, now seen corresponding path program 1 times [2020-12-09 09:30:38,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:38,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169381601] [2020-12-09 09:30:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:38,112 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 09:30:38,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169381601] [2020-12-09 09:30:38,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:38,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:30:38,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759372551] [2020-12-09 09:30:38,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:30:38,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:38,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:30:38,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:30:38,114 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2020-12-09 09:30:38,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,147 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-12-09 09:30:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:30:38,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-09 09:30:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,147 INFO L225 Difference]: With dead ends: 31 [2020-12-09 09:30:38,147 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 09:30:38,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:30:38,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 09:30:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 09:30:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 09:30:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-12-09 09:30:38,149 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 21 [2020-12-09 09:30:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,149 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-12-09 09:30:38,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:30:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-12-09 09:30:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:30:38,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:38,149 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] [2020-12-09 09:30:38,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 09:30:38,150 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:38,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1856279056, now seen corresponding path program 1 times [2020-12-09 09:30:38,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:38,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141504667] [2020-12-09 09:30:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:38,170 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 09:30:38,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141504667] [2020-12-09 09:30:38,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:38,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:38,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694426309] [2020-12-09 09:30:38,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:38,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:38,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:38,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,171 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 3 states. [2020-12-09 09:30:38,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,184 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-12-09 09:30:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:38,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 09:30:38,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,185 INFO L225 Difference]: With dead ends: 31 [2020-12-09 09:30:38,185 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 09:30:38,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 09:30:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-09 09:30:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 09:30:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-12-09 09:30:38,187 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2020-12-09 09:30:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,187 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-12-09 09:30:38,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-12-09 09:30:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 09:30:38,187 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:38,187 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] [2020-12-09 09:30:38,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-09 09:30:38,188 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:38,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1702417171, now seen corresponding path program 1 times [2020-12-09 09:30:38,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:38,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938459132] [2020-12-09 09:30:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:38,216 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 09:30:38,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938459132] [2020-12-09 09:30:38,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:38,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:30:38,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041348979] [2020-12-09 09:30:38,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:30:38,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:38,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:30:38,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,218 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 3 states. [2020-12-09 09:30:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,223 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-12-09 09:30:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:30:38,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-09 09:30:38,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,224 INFO L225 Difference]: With dead ends: 27 [2020-12-09 09:30:38,224 INFO L226 Difference]: Without dead ends: 26 [2020-12-09 09:30:38,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:30:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-09 09:30:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-09 09:30:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 09:30:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-12-09 09:30:38,225 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 23 [2020-12-09 09:30:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,225 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-12-09 09:30:38,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:30:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-12-09 09:30:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 09:30:38,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:30:38,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:30:38,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 09:30:38,226 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 09:30:38,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:30:38,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1558013172, now seen corresponding path program 1 times [2020-12-09 09:30:38,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:30:38,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632606196] [2020-12-09 09:30:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:30:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:30:38,269 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 09:30:38,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632606196] [2020-12-09 09:30:38,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:30:38,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:30:38,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203833938] [2020-12-09 09:30:38,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:30:38,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:30:38,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:30:38,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:30:38,271 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 4 states. [2020-12-09 09:30:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:30:38,281 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-12-09 09:30:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:30:38,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 09:30:38,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:30:38,281 INFO L225 Difference]: With dead ends: 24 [2020-12-09 09:30:38,281 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:30:38,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:30:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:30:38,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:30:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:30:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:30:38,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-12-09 09:30:38,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:30:38,283 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:30:38,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:30:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:30:38,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:30:38,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 09:30:38,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:30:38 BoogieIcfgContainer [2020-12-09 09:30:38,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:30:38,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:30:38,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:30:38,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:30:38,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:36" (3/4) ... [2020-12-09 09:30:38,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:30:38,318 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 161 nodes and edges [2020-12-09 09:30:38,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2020-12-09 09:30:38,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 09:30:38,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:30:38,463 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_68a8ff3c-6e98-443e-882d-6b230e926063/bin/utaipan/witness.graphml [2020-12-09 09:30:38,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:30:38,464 INFO L168 Benchmark]: Toolchain (without parser) took 3273.98 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 61.5 MB in the beginning and 121.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,465 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:30:38,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.52 ms. Allocated memory is still 92.3 MB. Free memory was 61.4 MB in the beginning and 65.1 MB in the end (delta: -3.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.95 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 58.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,466 INFO L168 Benchmark]: Boogie Preprocessor took 46.08 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 54.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,466 INFO L168 Benchmark]: RCFGBuilder took 1376.48 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 54.7 MB in the beginning and 69.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,467 INFO L168 Benchmark]: TraceAbstraction took 1339.94 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 68.8 MB in the beginning and 125.1 MB in the end (delta: -56.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:30:38,467 INFO L168 Benchmark]: Witness Printer took 175.41 ms. Allocated memory is still 167.8 MB. Free memory was 125.1 MB in the beginning and 121.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:30:38,470 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 92.3 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.52 ms. Allocated memory is still 92.3 MB. Free memory was 61.4 MB in the beginning and 65.1 MB in the end (delta: -3.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.95 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 58.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.08 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 54.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1376.48 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 54.7 MB in the beginning and 69.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1339.94 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 68.8 MB in the beginning and 125.1 MB in the end (delta: -56.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 175.41 ms. Allocated memory is still 167.8 MB. Free memory was 125.1 MB in the beginning and 121.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 295]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1995 SDtfs, 1229 SDslu, 763 SDs, 0 SdLazy, 448 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=0, 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, 14 MinimizatonAttempts, 65 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 7708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 correct! Received shutdown request...