./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94ac66895917d32482f796d3410ed655309b41e1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:38,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:38,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:38,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:38,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:38,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:39,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:39,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:39,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:39,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:39,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:39,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:39,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:39,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:39,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:39,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:39,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:39,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:39,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:39,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:39,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:39,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:39,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:39,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:39,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:39,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:39,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:39,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:39,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:39,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:39,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:39,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:39,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:39,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:39,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:39,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:39,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:39,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:39,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:39,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:39,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:39,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:39,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:39,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:39,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:39,122 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:39,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:39,123 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:39,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:39,123 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:39,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:39,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:39,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:39,125 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:39,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:39,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:39,126 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:39,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:39,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:39,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:39,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:39,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:39,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:39,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:39,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:39,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:39,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:39,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:39,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:39,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:39,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:39,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:39,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:39,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:39,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:39,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:39,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:39,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:39,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:39,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:39,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:39,133 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_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94ac66895917d32482f796d3410ed655309b41e1 [2021-10-11 02:29:39,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:39,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:39,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:39,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:39,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:39,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i [2021-10-11 02:29:39,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/data/d6e661f2a/fede6b2751344db2aabc11455f12b48d/FLAGab1950157 [2021-10-11 02:29:40,078 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:40,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i [2021-10-11 02:29:40,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/data/d6e661f2a/fede6b2751344db2aabc11455f12b48d/FLAGab1950157 [2021-10-11 02:29:40,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/data/d6e661f2a/fede6b2751344db2aabc11455f12b48d [2021-10-11 02:29:40,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:40,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:40,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:40,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:40,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:40,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:40" (1/1) ... [2021-10-11 02:29:40,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50760ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:40, skipping insertion in model container [2021-10-11 02:29:40,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:40" (1/1) ... [2021-10-11 02:29:40,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:40,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:40,613 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i[949,962] [2021-10-11 02:29:40,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:40,835 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:40,850 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i[949,962] [2021-10-11 02:29:40,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:41,012 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:41,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41 WrapperNode [2021-10-11 02:29:41,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:41,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:41,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:41,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:41,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:41,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:41,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:41,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:41,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:41,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:41,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:41,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:41,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:29:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:29:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:29:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:29:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:29:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:29:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:29:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:29:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:29:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-11 02:29:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-11 02:29:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:29:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:41,201 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:29:41,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:41,595 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:29:41,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:41 BoogieIcfgContainer [2021-10-11 02:29:41,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:41,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:41,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:41,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:41,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:40" (1/3) ... [2021-10-11 02:29:41,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501b687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:41, skipping insertion in model container [2021-10-11 02:29:41,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41" (2/3) ... [2021-10-11 02:29:41,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501b687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:41, skipping insertion in model container [2021-10-11 02:29:41,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:41" (3/3) ... [2021-10-11 02:29:41,606 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-10-11 02:29:41,620 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:29:41,620 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:41,623 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:41,624 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:29:41,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,666 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,666 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,667 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,667 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,668 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,668 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,668 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,677 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,677 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:29:41,685 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:29:41,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:29:41,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:41,725 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:41,726 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:41,726 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:41,726 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:41,727 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:41,727 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:41,727 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:41,747 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:29:41,750 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2021-10-11 02:29:41,754 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2021-10-11 02:29:41,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-10-11 02:29:41,841 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-10-11 02:29:41,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:29:41,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-10-11 02:29:41,860 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-10-11 02:29:44,966 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-10-11 02:29:45,216 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-10-11 02:29:45,536 INFO L131 LiptonReduction]: Checked pairs total: 2978 [2021-10-11 02:29:45,536 INFO L133 LiptonReduction]: Total number of compositions: 68 [2021-10-11 02:29:45,541 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2021-10-11 02:29:45,588 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2021-10-11 02:29:45,590 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2021-10-11 02:29:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:29:45,598 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:45,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:45,599 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -36259415, now seen corresponding path program 1 times [2021-10-11 02:29:45,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:45,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918762671] [2021-10-11 02:29:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:45,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918762671] [2021-10-11 02:29:45,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:45,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:29:45,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825958968] [2021-10-11 02:29:45,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:45,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:45,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:45,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:45,928 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2021-10-11 02:29:46,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,057 INFO L93 Difference]: Finished difference Result 1072 states and 3535 transitions. [2021-10-11 02:29:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:46,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:29:46,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,082 INFO L225 Difference]: With dead ends: 1072 [2021-10-11 02:29:46,082 INFO L226 Difference]: Without dead ends: 745 [2021-10-11 02:29:46,083 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 [2021-10-11 02:29:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-10-11 02:29:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 679. [2021-10-11 02:29:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2021-10-11 02:29:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 2220 transitions. [2021-10-11 02:29:46,250 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 2220 transitions. Word has length 10 [2021-10-11 02:29:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,251 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 2220 transitions. [2021-10-11 02:29:46,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 2220 transitions. [2021-10-11 02:29:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:29:46,257 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:46,258 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1165014530, now seen corresponding path program 1 times [2021-10-11 02:29:46,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:46,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742281719] [2021-10-11 02:29:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:46,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742281719] [2021-10-11 02:29:46,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:46,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594004206] [2021-10-11 02:29:46,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:46,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:46,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:46,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:46,418 INFO L87 Difference]: Start difference. First operand 679 states and 2220 transitions. Second operand 4 states. [2021-10-11 02:29:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,448 INFO L93 Difference]: Finished difference Result 700 states and 2225 transitions. [2021-10-11 02:29:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:46,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:29:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,455 INFO L225 Difference]: With dead ends: 700 [2021-10-11 02:29:46,456 INFO L226 Difference]: Without dead ends: 700 [2021-10-11 02:29:46,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:46,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-11 02:29:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 652. [2021-10-11 02:29:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2021-10-11 02:29:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2109 transitions. [2021-10-11 02:29:46,490 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2109 transitions. Word has length 11 [2021-10-11 02:29:46,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,490 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2109 transitions. [2021-10-11 02:29:46,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2109 transitions. [2021-10-11 02:29:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:29:46,493 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:29:46,493 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1124043458, now seen corresponding path program 1 times [2021-10-11 02:29:46,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:46,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644228421] [2021-10-11 02:29:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:46,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644228421] [2021-10-11 02:29:46,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:46,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723409000] [2021-10-11 02:29:46,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:46,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:46,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:46,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:46,588 INFO L87 Difference]: Start difference. First operand 652 states and 2109 transitions. Second operand 4 states. [2021-10-11 02:29:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,620 INFO L93 Difference]: Finished difference Result 664 states and 2099 transitions. [2021-10-11 02:29:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:46,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:29:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,627 INFO L225 Difference]: With dead ends: 664 [2021-10-11 02:29:46,627 INFO L226 Difference]: Without dead ends: 664 [2021-10-11 02:29:46,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-10-11 02:29:46,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 604. [2021-10-11 02:29:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2021-10-11 02:29:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1939 transitions. [2021-10-11 02:29:46,660 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1939 transitions. Word has length 11 [2021-10-11 02:29:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,661 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 1939 transitions. [2021-10-11 02:29:46,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1939 transitions. [2021-10-11 02:29:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:29:46,665 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:29:46,670 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1755710469, now seen corresponding path program 1 times [2021-10-11 02:29:46,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:46,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333766384] [2021-10-11 02:29:46,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:46,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333766384] [2021-10-11 02:29:46,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:46,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041165085] [2021-10-11 02:29:46,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:46,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:46,776 INFO L87 Difference]: Start difference. First operand 604 states and 1939 transitions. Second operand 5 states. [2021-10-11 02:29:46,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,817 INFO L93 Difference]: Finished difference Result 856 states and 2659 transitions. [2021-10-11 02:29:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:46,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:29:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,822 INFO L225 Difference]: With dead ends: 856 [2021-10-11 02:29:46,823 INFO L226 Difference]: Without dead ends: 472 [2021-10-11 02:29:46,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-10-11 02:29:46,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 436. [2021-10-11 02:29:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-10-11 02:29:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1375 transitions. [2021-10-11 02:29:46,844 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1375 transitions. Word has length 12 [2021-10-11 02:29:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,844 INFO L481 AbstractCegarLoop]: Abstraction has 436 states and 1375 transitions. [2021-10-11 02:29:46,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1375 transitions. [2021-10-11 02:29:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:29:46,845 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:29:46,846 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,846 INFO L82 PathProgramCache]: Analyzing trace with hash -485610361, now seen corresponding path program 2 times [2021-10-11 02:29:46,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:46,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498778452] [2021-10-11 02:29:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:46,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498778452] [2021-10-11 02:29:46,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:29:46,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011877463] [2021-10-11 02:29:46,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:46,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:46,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:46,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:46,934 INFO L87 Difference]: Start difference. First operand 436 states and 1375 transitions. Second operand 3 states. [2021-10-11 02:29:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,944 INFO L93 Difference]: Finished difference Result 418 states and 1306 transitions. [2021-10-11 02:29:46,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:46,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 02:29:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,949 INFO L225 Difference]: With dead ends: 418 [2021-10-11 02:29:46,950 INFO L226 Difference]: Without dead ends: 418 [2021-10-11 02:29:46,950 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 [2021-10-11 02:29:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-10-11 02:29:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-10-11 02:29:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2021-10-11 02:29:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1306 transitions. [2021-10-11 02:29:46,968 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1306 transitions. Word has length 12 [2021-10-11 02:29:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,969 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 1306 transitions. [2021-10-11 02:29:46,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1306 transitions. [2021-10-11 02:29:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:29:46,970 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:29:46,970 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1949399229, now seen corresponding path program 1 times [2021-10-11 02:29:46,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:46,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517829943] [2021-10-11 02:29:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517829943] [2021-10-11 02:29:47,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:47,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382809915] [2021-10-11 02:29:47,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:47,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:47,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,035 INFO L87 Difference]: Start difference. First operand 418 states and 1306 transitions. Second operand 4 states. [2021-10-11 02:29:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,064 INFO L93 Difference]: Finished difference Result 532 states and 1601 transitions. [2021-10-11 02:29:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:47,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:29:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,069 INFO L225 Difference]: With dead ends: 532 [2021-10-11 02:29:47,069 INFO L226 Difference]: Without dead ends: 412 [2021-10-11 02:29:47,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-11 02:29:47,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2021-10-11 02:29:47,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-10-11 02:29:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1137 transitions. [2021-10-11 02:29:47,086 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1137 transitions. Word has length 13 [2021-10-11 02:29:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,087 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1137 transitions. [2021-10-11 02:29:47,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1137 transitions. [2021-10-11 02:29:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:29:47,088 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:29:47,089 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1949381931, now seen corresponding path program 1 times [2021-10-11 02:29:47,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885604855] [2021-10-11 02:29:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885604855] [2021-10-11 02:29:47,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:47,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759097142] [2021-10-11 02:29:47,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:47,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,151 INFO L87 Difference]: Start difference. First operand 376 states and 1137 transitions. Second operand 4 states. [2021-10-11 02:29:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,179 INFO L93 Difference]: Finished difference Result 526 states and 1530 transitions. [2021-10-11 02:29:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:47,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:29:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,183 INFO L225 Difference]: With dead ends: 526 [2021-10-11 02:29:47,183 INFO L226 Difference]: Without dead ends: 274 [2021-10-11 02:29:47,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-11 02:29:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-10-11 02:29:47,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 02:29:47,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2021-10-11 02:29:47,197 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 13 [2021-10-11 02:29:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,197 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2021-10-11 02:29:47,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2021-10-11 02:29:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:29:47,198 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:29:47,198 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2123867267, now seen corresponding path program 1 times [2021-10-11 02:29:47,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960876786] [2021-10-11 02:29:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960876786] [2021-10-11 02:29:47,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:47,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578967116] [2021-10-11 02:29:47,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:47,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:47,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,256 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2021-10-11 02:29:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,290 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2021-10-11 02:29:47,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:47,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:29:47,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,292 INFO L225 Difference]: With dead ends: 345 [2021-10-11 02:29:47,293 INFO L226 Difference]: Without dead ends: 252 [2021-10-11 02:29:47,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-11 02:29:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-10-11 02:29:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-10-11 02:29:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2021-10-11 02:29:47,302 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2021-10-11 02:29:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,303 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2021-10-11 02:29:47,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2021-10-11 02:29:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:29:47,303 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:29:47,304 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134941, now seen corresponding path program 1 times [2021-10-11 02:29:47,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254475349] [2021-10-11 02:29:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254475349] [2021-10-11 02:29:47,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:47,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911256913] [2021-10-11 02:29:47,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:47,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:47,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:47,358 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2021-10-11 02:29:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,401 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2021-10-11 02:29:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:47,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:29:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,403 INFO L225 Difference]: With dead ends: 278 [2021-10-11 02:29:47,403 INFO L226 Difference]: Without dead ends: 203 [2021-10-11 02:29:47,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:47,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-11 02:29:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-10-11 02:29:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-10-11 02:29:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2021-10-11 02:29:47,411 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2021-10-11 02:29:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,411 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2021-10-11 02:29:47,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2021-10-11 02:29:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:29:47,412 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:29:47,412 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1099628631, now seen corresponding path program 1 times [2021-10-11 02:29:47,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438623599] [2021-10-11 02:29:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438623599] [2021-10-11 02:29:47,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:47,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334130288] [2021-10-11 02:29:47,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:47,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:47,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:47,468 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2021-10-11 02:29:47,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,552 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2021-10-11 02:29:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:47,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 02:29:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,555 INFO L225 Difference]: With dead ends: 200 [2021-10-11 02:29:47,555 INFO L226 Difference]: Without dead ends: 162 [2021-10-11 02:29:47,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-11 02:29:47,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-10-11 02:29:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-10-11 02:29:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2021-10-11 02:29:47,562 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2021-10-11 02:29:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,563 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2021-10-11 02:29:47,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2021-10-11 02:29:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:47,564 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:29:47,564 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,565 INFO L82 PathProgramCache]: Analyzing trace with hash 554738786, now seen corresponding path program 1 times [2021-10-11 02:29:47,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128462757] [2021-10-11 02:29:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128462757] [2021-10-11 02:29:47,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:47,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361273275] [2021-10-11 02:29:47,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:47,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:47,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:47,617 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 5 states. [2021-10-11 02:29:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,643 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2021-10-11 02:29:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:47,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-10-11 02:29:47,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,645 INFO L225 Difference]: With dead ends: 194 [2021-10-11 02:29:47,645 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 02:29:47,646 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 [2021-10-11 02:29:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 02:29:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-10-11 02:29:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-10-11 02:29:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2021-10-11 02:29:47,651 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2021-10-11 02:29:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,652 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2021-10-11 02:29:47,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2021-10-11 02:29:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:47,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:29:47,653 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash -780782352, now seen corresponding path program 2 times [2021-10-11 02:29:47,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297326528] [2021-10-11 02:29:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297326528] [2021-10-11 02:29:47,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:47,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184684349] [2021-10-11 02:29:47,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:29:47,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:29:47,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:47,720 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2021-10-11 02:29:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,778 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2021-10-11 02:29:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:29:47,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2021-10-11 02:29:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,780 INFO L225 Difference]: With dead ends: 120 [2021-10-11 02:29:47,780 INFO L226 Difference]: Without dead ends: 71 [2021-10-11 02:29:47,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-11 02:29:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-11 02:29:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-10-11 02:29:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2021-10-11 02:29:47,783 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2021-10-11 02:29:47,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,783 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2021-10-11 02:29:47,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:29:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2021-10-11 02:29:47,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 02:29:47,784 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,785 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] [2021-10-11 02:29:47,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:29:47,785 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1285342776, now seen corresponding path program 1 times [2021-10-11 02:29:47,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:47,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423262774] [2021-10-11 02:29:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423262774] [2021-10-11 02:29:47,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:47,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202909602] [2021-10-11 02:29:47,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:47,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:47,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:47,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,829 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2021-10-11 02:29:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,849 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2021-10-11 02:29:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:47,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2021-10-11 02:29:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,849 INFO L225 Difference]: With dead ends: 70 [2021-10-11 02:29:47,850 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:47,850 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 [2021-10-11 02:29:47,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:47,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-10-11 02:29:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,851 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:47,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:47,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:47,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:29:47,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:47 BasicIcfg [2021-10-11 02:29:47,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:47,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:47,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:47,855 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:47,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:41" (3/4) ... [2021-10-11 02:29:47,859 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:47,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:29:47,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:29:47,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:29:47,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-10-11 02:29:47,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:29:47,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:29:47,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:47,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:47,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b75f208-9aba-4e46-bff4-dd712e08ab3b/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:47,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:47,908 INFO L168 Benchmark]: Toolchain (without parser) took 7546.69 ms. Allocated memory was 107.0 MB in the beginning and 207.6 MB in the end (delta: 100.7 MB). Free memory was 67.2 MB in the beginning and 120.0 MB in the end (delta: -52.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,908 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:47,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.90 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 63.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.07 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 61.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,909 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.7 MB in the beginning and 60.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:47,910 INFO L168 Benchmark]: RCFGBuilder took 476.21 ms. Allocated memory is still 107.0 MB. Free memory was 60.3 MB in the beginning and 82.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,911 INFO L168 Benchmark]: TraceAbstraction took 6255.72 ms. Allocated memory was 107.0 MB in the beginning and 207.6 MB in the end (delta: 100.7 MB). Free memory was 81.7 MB in the beginning and 123.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,911 INFO L168 Benchmark]: Witness Printer took 51.57 ms. Allocated memory is still 207.6 MB. Free memory was 123.1 MB in the beginning and 120.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:47,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 651.90 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 63.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.07 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 61.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.7 MB in the beginning and 60.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 476.21 ms. Allocated memory is still 107.0 MB. Free memory was 60.3 MB in the beginning and 82.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6255.72 ms. Allocated memory was 107.0 MB in the beginning and 207.6 MB in the end (delta: 100.7 MB). Free memory was 81.7 MB in the beginning and 123.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. * Witness Printer took 51.57 ms. Allocated memory is still 207.6 MB. Free memory was 123.1 MB in the beginning and 120.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1172 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 75 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 97 PlacesBefore, 38 PlacesAfterwards, 86 TransitionsBefore, 25 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2978 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 283 SDtfs, 313 SDslu, 410 SDs, 0 SdLazy, 234 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 248 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...