./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.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_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/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_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/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_dfeacf65-3b89-4191-b022-6072a1e315aa/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 586443bdba3a0440a46012510813ca1b149248c0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:24:53,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:53,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:54,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:54,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:54,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:54,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:54,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:54,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:54,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:54,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:54,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:54,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:54,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:54,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:54,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:54,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:54,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:54,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:54,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:54,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:54,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:54,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:54,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:54,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:54,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:54,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:54,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:54,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:54,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:54,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:54,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:54,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:54,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:54,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:54,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:54,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:54,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:54,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:54,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:54,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:54,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:54,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:54,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:54,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:54,128 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:54,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:54,128 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:54,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:54,129 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:54,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:54,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:54,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:54,135 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:54,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:54,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:54,136 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:54,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:54,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:54,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:54,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:54,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:54,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:54,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:54,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:54,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:54,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:54,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:54,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:54,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:54,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:54,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:54,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:54,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:54,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:54,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:54,141 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:54,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:54,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:54,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:54,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:54,143 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_dfeacf65-3b89-4191-b022-6072a1e315aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586443bdba3a0440a46012510813ca1b149248c0 [2021-10-11 02:24:54,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:54,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:54,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:54,426 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:54,427 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:54,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2021-10-11 02:24:54,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/data/c34c21082/5ae23df9e9d34487b0443f84717416fe/FLAG109704dcf [2021-10-11 02:24:55,058 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:55,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2021-10-11 02:24:55,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/data/c34c21082/5ae23df9e9d34487b0443f84717416fe/FLAG109704dcf [2021-10-11 02:24:55,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/data/c34c21082/5ae23df9e9d34487b0443f84717416fe [2021-10-11 02:24:55,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:55,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:55,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:55,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:55,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:55,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:55" (1/1) ... [2021-10-11 02:24:55,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47773ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:55, skipping insertion in model container [2021-10-11 02:24:55,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:55" (1/1) ... [2021-10-11 02:24:55,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:55,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:55,588 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_dfeacf65-3b89-4191-b022-6072a1e315aa/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] [2021-10-11 02:24:55,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:55,873 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:55,887 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_dfeacf65-3b89-4191-b022-6072a1e315aa/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] [2021-10-11 02:24:55,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:56,077 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:56,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56 WrapperNode [2021-10-11 02:24:56,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:56,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:56,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:56,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:56,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:56,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:56,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:56,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:56,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... [2021-10-11 02:24:56,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:56,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:56,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:56,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:56,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/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 02:24:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:24:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:24:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:24:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:24:56,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:24:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:24:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:24:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:24:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:24:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-11 02:24:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-11 02:24:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:24:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:56,294 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 02:24:56,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:56,797 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:24:56,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:56 BoogieIcfgContainer [2021-10-11 02:24:56,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:56,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:56,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:56,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:56,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:55" (1/3) ... [2021-10-11 02:24:56,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c821133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:56, skipping insertion in model container [2021-10-11 02:24:56,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:56" (2/3) ... [2021-10-11 02:24:56,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c821133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:56, skipping insertion in model container [2021-10-11 02:24:56,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:56" (3/3) ... [2021-10-11 02:24:56,809 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-10-11 02:24:56,823 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:24:56,824 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:56,827 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:24:56,827 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:24:56,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,865 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,865 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,866 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,866 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,868 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,868 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,868 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,868 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,868 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,869 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,869 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,869 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,870 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,870 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,870 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,870 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,872 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,873 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,887 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,906 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,907 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:56,909 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:24:56,920 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:24:56,939 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:56,940 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:56,940 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:56,940 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:56,940 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:56,940 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:56,941 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:56,941 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:56,954 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:24:56,956 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2021-10-11 02:24:56,959 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2021-10-11 02:24:56,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-10-11 02:24:57,011 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-10-11 02:24:57,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:24:57,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-10-11 02:24:57,020 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2021-10-11 02:25:00,356 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-10-11 02:25:00,472 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-10-11 02:25:00,691 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-10-11 02:25:00,792 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2021-10-11 02:25:00,792 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-10-11 02:25:00,799 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2021-10-11 02:25:00,906 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2021-10-11 02:25:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2021-10-11 02:25:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:25:00,917 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:00,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:00,918 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:00,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2021-10-11 02:25:00,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:00,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129762831] [2021-10-11 02:25:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:01,128 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 02:25:01,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129762831] [2021-10-11 02:25:01,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:01,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:01,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682091529] [2021-10-11 02:25:01,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:01,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:01,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:01,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:01,151 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2021-10-11 02:25:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:01,208 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2021-10-11 02:25:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:01,210 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:25:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:01,242 INFO L225 Difference]: With dead ends: 1450 [2021-10-11 02:25:01,242 INFO L226 Difference]: Without dead ends: 1194 [2021-10-11 02:25:01,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-10-11 02:25:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-10-11 02:25:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2021-10-11 02:25:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2021-10-11 02:25:01,416 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2021-10-11 02:25:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:01,417 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2021-10-11 02:25:01,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2021-10-11 02:25:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:01,429 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:01,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:01,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:01,432 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:01,437 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2021-10-11 02:25:01,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:01,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084929976] [2021-10-11 02:25:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:01,677 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 02:25:01,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084929976] [2021-10-11 02:25:01,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:01,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:01,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999384356] [2021-10-11 02:25:01,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:01,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:01,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:01,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:01,685 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2021-10-11 02:25:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:01,756 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2021-10-11 02:25:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:01,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:25:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:01,770 INFO L225 Difference]: With dead ends: 1448 [2021-10-11 02:25:01,770 INFO L226 Difference]: Without dead ends: 1192 [2021-10-11 02:25:01,771 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 02:25:01,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-10-11 02:25:01,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2021-10-11 02:25:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2021-10-11 02:25:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2021-10-11 02:25:01,834 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2021-10-11 02:25:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:01,834 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2021-10-11 02:25:01,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2021-10-11 02:25:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:25:01,837 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:01,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:01,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:01,838 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:01,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:01,839 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2021-10-11 02:25:01,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:01,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821054814] [2021-10-11 02:25:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:02,030 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 02:25:02,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821054814] [2021-10-11 02:25:02,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:02,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:02,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335460091] [2021-10-11 02:25:02,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:02,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:02,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:02,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:02,036 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2021-10-11 02:25:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:02,168 INFO L93 Difference]: Finished difference Result 2413 states and 8471 transitions. [2021-10-11 02:25:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:25:02,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:25:02,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:02,188 INFO L225 Difference]: With dead ends: 2413 [2021-10-11 02:25:02,188 INFO L226 Difference]: Without dead ends: 1870 [2021-10-11 02:25:02,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2021-10-11 02:25:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1492. [2021-10-11 02:25:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2021-10-11 02:25:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5352 transitions. [2021-10-11 02:25:02,271 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5352 transitions. Word has length 12 [2021-10-11 02:25:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:02,271 INFO L481 AbstractCegarLoop]: Abstraction has 1492 states and 5352 transitions. [2021-10-11 02:25:02,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5352 transitions. [2021-10-11 02:25:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:25:02,273 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:02,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:02,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:02,274 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:02,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:02,275 INFO L82 PathProgramCache]: Analyzing trace with hash -832796680, now seen corresponding path program 1 times [2021-10-11 02:25:02,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:02,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182224671] [2021-10-11 02:25:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:02,368 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 02:25:02,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182224671] [2021-10-11 02:25:02,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:02,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:02,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616023404] [2021-10-11 02:25:02,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:02,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:02,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:02,375 INFO L87 Difference]: Start difference. First operand 1492 states and 5352 transitions. Second operand 5 states. [2021-10-11 02:25:02,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:02,434 INFO L93 Difference]: Finished difference Result 1618 states and 5634 transitions. [2021-10-11 02:25:02,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:02,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:25:02,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:02,449 INFO L225 Difference]: With dead ends: 1618 [2021-10-11 02:25:02,449 INFO L226 Difference]: Without dead ends: 1366 [2021-10-11 02:25:02,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:02,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-10-11 02:25:02,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2021-10-11 02:25:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2021-10-11 02:25:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 4818 transitions. [2021-10-11 02:25:02,586 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 4818 transitions. Word has length 12 [2021-10-11 02:25:02,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:02,586 INFO L481 AbstractCegarLoop]: Abstraction has 1366 states and 4818 transitions. [2021-10-11 02:25:02,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 4818 transitions. [2021-10-11 02:25:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:25:02,589 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:02,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:02,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:25:02,590 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:02,590 INFO L82 PathProgramCache]: Analyzing trace with hash -105254130, now seen corresponding path program 1 times [2021-10-11 02:25:02,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:02,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514087398] [2021-10-11 02:25:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:02,661 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 02:25:02,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514087398] [2021-10-11 02:25:02,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:02,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:02,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922414542] [2021-10-11 02:25:02,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:02,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:02,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:02,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:02,664 INFO L87 Difference]: Start difference. First operand 1366 states and 4818 transitions. Second operand 5 states. [2021-10-11 02:25:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:02,722 INFO L93 Difference]: Finished difference Result 1456 states and 5010 transitions. [2021-10-11 02:25:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:02,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:25:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:02,736 INFO L225 Difference]: With dead ends: 1456 [2021-10-11 02:25:02,736 INFO L226 Difference]: Without dead ends: 1276 [2021-10-11 02:25:02,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-10-11 02:25:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1168. [2021-10-11 02:25:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2021-10-11 02:25:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 4059 transitions. [2021-10-11 02:25:02,796 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 4059 transitions. Word has length 13 [2021-10-11 02:25:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:02,796 INFO L481 AbstractCegarLoop]: Abstraction has 1168 states and 4059 transitions. [2021-10-11 02:25:02,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 4059 transitions. [2021-10-11 02:25:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:25:02,799 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:02,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:02,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:25:02,799 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:02,800 INFO L82 PathProgramCache]: Analyzing trace with hash -134657847, now seen corresponding path program 1 times [2021-10-11 02:25:02,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:02,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486581734] [2021-10-11 02:25:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:02,863 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 02:25:02,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486581734] [2021-10-11 02:25:02,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:02,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:02,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802144421] [2021-10-11 02:25:02,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:02,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:02,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:02,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:02,866 INFO L87 Difference]: Start difference. First operand 1168 states and 4059 transitions. Second operand 5 states. [2021-10-11 02:25:02,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:02,975 INFO L93 Difference]: Finished difference Result 1879 states and 6375 transitions. [2021-10-11 02:25:02,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:25:02,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:25:02,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:02,990 INFO L225 Difference]: With dead ends: 1879 [2021-10-11 02:25:02,990 INFO L226 Difference]: Without dead ends: 1438 [2021-10-11 02:25:02,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-10-11 02:25:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1114. [2021-10-11 02:25:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2021-10-11 02:25:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 3834 transitions. [2021-10-11 02:25:03,041 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 3834 transitions. Word has length 13 [2021-10-11 02:25:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,042 INFO L481 AbstractCegarLoop]: Abstraction has 1114 states and 3834 transitions. [2021-10-11 02:25:03,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3834 transitions. [2021-10-11 02:25:03,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:25:03,045 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:25:03,046 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,047 INFO L82 PathProgramCache]: Analyzing trace with hash 118994859, now seen corresponding path program 1 times [2021-10-11 02:25:03,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320335729] [2021-10-11 02:25:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,169 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 02:25:03,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320335729] [2021-10-11 02:25:03,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:03,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762235886] [2021-10-11 02:25:03,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:03,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:03,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:03,170 INFO L87 Difference]: Start difference. First operand 1114 states and 3834 transitions. Second operand 5 states. [2021-10-11 02:25:03,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,280 INFO L93 Difference]: Finished difference Result 1831 states and 6166 transitions. [2021-10-11 02:25:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:25:03,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:25:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,295 INFO L225 Difference]: With dead ends: 1831 [2021-10-11 02:25:03,295 INFO L226 Difference]: Without dead ends: 1480 [2021-10-11 02:25:03,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:03,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-10-11 02:25:03,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1102. [2021-10-11 02:25:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2021-10-11 02:25:03,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 3745 transitions. [2021-10-11 02:25:03,345 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 3745 transitions. Word has length 14 [2021-10-11 02:25:03,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,346 INFO L481 AbstractCegarLoop]: Abstraction has 1102 states and 3745 transitions. [2021-10-11 02:25:03,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:03,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 3745 transitions. [2021-10-11 02:25:03,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:25:03,349 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:25:03,349 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,350 INFO L82 PathProgramCache]: Analyzing trace with hash 119501306, now seen corresponding path program 1 times [2021-10-11 02:25:03,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622967242] [2021-10-11 02:25:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,407 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 02:25:03,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622967242] [2021-10-11 02:25:03,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:03,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214410792] [2021-10-11 02:25:03,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:03,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:03,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:03,409 INFO L87 Difference]: Start difference. First operand 1102 states and 3745 transitions. Second operand 5 states. [2021-10-11 02:25:03,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,447 INFO L93 Difference]: Finished difference Result 1156 states and 3853 transitions. [2021-10-11 02:25:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:03,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:25:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,457 INFO L225 Difference]: With dead ends: 1156 [2021-10-11 02:25:03,458 INFO L226 Difference]: Without dead ends: 1048 [2021-10-11 02:25:03,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-10-11 02:25:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 940. [2021-10-11 02:25:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2021-10-11 02:25:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 3196 transitions. [2021-10-11 02:25:03,496 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 3196 transitions. Word has length 14 [2021-10-11 02:25:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,496 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 3196 transitions. [2021-10-11 02:25:03,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 3196 transitions. [2021-10-11 02:25:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:25:03,499 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:25:03,500 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,500 INFO L82 PathProgramCache]: Analyzing trace with hash -330143100, now seen corresponding path program 1 times [2021-10-11 02:25:03,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350392051] [2021-10-11 02:25:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,560 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 02:25:03,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350392051] [2021-10-11 02:25:03,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:03,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640909621] [2021-10-11 02:25:03,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:03,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:03,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:03,563 INFO L87 Difference]: Start difference. First operand 940 states and 3196 transitions. Second operand 6 states. [2021-10-11 02:25:03,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,624 INFO L93 Difference]: Finished difference Result 1189 states and 3968 transitions. [2021-10-11 02:25:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:03,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 02:25:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,630 INFO L225 Difference]: With dead ends: 1189 [2021-10-11 02:25:03,631 INFO L226 Difference]: Without dead ends: 544 [2021-10-11 02:25:03,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:03,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-10-11 02:25:03,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2021-10-11 02:25:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2021-10-11 02:25:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1746 transitions. [2021-10-11 02:25:03,651 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1746 transitions. Word has length 15 [2021-10-11 02:25:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,652 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 1746 transitions. [2021-10-11 02:25:03,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1746 transitions. [2021-10-11 02:25:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:25:03,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:25:03,654 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,655 INFO L82 PathProgramCache]: Analyzing trace with hash -272320691, now seen corresponding path program 1 times [2021-10-11 02:25:03,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759188854] [2021-10-11 02:25:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,734 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 02:25:03,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759188854] [2021-10-11 02:25:03,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:03,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235847925] [2021-10-11 02:25:03,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:03,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:03,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:03,737 INFO L87 Difference]: Start difference. First operand 544 states and 1746 transitions. Second operand 6 states. [2021-10-11 02:25:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,793 INFO L93 Difference]: Finished difference Result 712 states and 2244 transitions. [2021-10-11 02:25:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:03,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 02:25:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,797 INFO L225 Difference]: With dead ends: 712 [2021-10-11 02:25:03,797 INFO L226 Difference]: Without dead ends: 316 [2021-10-11 02:25:03,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-10-11 02:25:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-10-11 02:25:03,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-10-11 02:25:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 934 transitions. [2021-10-11 02:25:03,810 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 934 transitions. Word has length 15 [2021-10-11 02:25:03,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,810 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 934 transitions. [2021-10-11 02:25:03,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:03,810 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 934 transitions. [2021-10-11 02:25:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:03,811 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:25:03,812 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,813 INFO L82 PathProgramCache]: Analyzing trace with hash 2113265253, now seen corresponding path program 1 times [2021-10-11 02:25:03,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995107730] [2021-10-11 02:25:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,867 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 02:25:03,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995107730] [2021-10-11 02:25:03,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:03,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253036975] [2021-10-11 02:25:03,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:03,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:03,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:03,870 INFO L87 Difference]: Start difference. First operand 316 states and 934 transitions. Second operand 5 states. [2021-10-11 02:25:03,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,900 INFO L93 Difference]: Finished difference Result 340 states and 974 transitions. [2021-10-11 02:25:03,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:03,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-10-11 02:25:03,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,903 INFO L225 Difference]: With dead ends: 340 [2021-10-11 02:25:03,904 INFO L226 Difference]: Without dead ends: 292 [2021-10-11 02:25:03,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-11 02:25:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-10-11 02:25:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2021-10-11 02:25:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2021-10-11 02:25:03,914 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2021-10-11 02:25:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,915 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2021-10-11 02:25:03,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2021-10-11 02:25:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:25:03,916 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:03,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:03,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:25:03,917 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:03,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:03,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1420368766, now seen corresponding path program 1 times [2021-10-11 02:25:03,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:03,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256815041] [2021-10-11 02:25:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:03,975 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 02:25:03,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256815041] [2021-10-11 02:25:03,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:03,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:03,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326144047] [2021-10-11 02:25:03,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:03,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:03,978 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 6 states. [2021-10-11 02:25:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:04,027 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2021-10-11 02:25:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:04,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:25:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:04,029 INFO L225 Difference]: With dead ends: 352 [2021-10-11 02:25:04,030 INFO L226 Difference]: Without dead ends: 154 [2021-10-11 02:25:04,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-11 02:25:04,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-11 02:25:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-10-11 02:25:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2021-10-11 02:25:04,036 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2021-10-11 02:25:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:04,036 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2021-10-11 02:25:04,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2021-10-11 02:25:04,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:25:04,037 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:04,038 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 02:25:04,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:25:04,038 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:04,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:04,039 INFO L82 PathProgramCache]: Analyzing trace with hash -673573280, now seen corresponding path program 1 times [2021-10-11 02:25:04,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:04,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975853304] [2021-10-11 02:25:04,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:04,097 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 02:25:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975853304] [2021-10-11 02:25:04,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:04,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:04,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082854774] [2021-10-11 02:25:04,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:04,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:04,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:04,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:04,100 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 6 states. [2021-10-11 02:25:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:04,140 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2021-10-11 02:25:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:04,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-10-11 02:25:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:04,141 INFO L225 Difference]: With dead ends: 130 [2021-10-11 02:25:04,141 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:04,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:04,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-11 02:25:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:04,142 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:04,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:04,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:04,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:25:04,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:04 BasicIcfg [2021-10-11 02:25:04,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:04,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:04,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:04,147 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:04,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:56" (3/4) ... [2021-10-11 02:25:04,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:04,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:25:04,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:25:04,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:25:04,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-10-11 02:25:04,162 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:25:04,162 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:04,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:04,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:04,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfeacf65-3b89-4191-b022-6072a1e315aa/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:04,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:04,200 INFO L168 Benchmark]: Toolchain (without parser) took 8849.06 ms. Allocated memory was 94.4 MB in the beginning and 209.7 MB in the end (delta: 115.3 MB). Free memory was 62.8 MB in the beginning and 83.0 MB in the end (delta: -20.2 MB). Peak memory consumption was 96.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,200 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:04,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.24 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.5 MB in the beginning and 88.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.26 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 86.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:04,202 INFO L168 Benchmark]: Boogie Preprocessor took 44.33 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 85.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:04,202 INFO L168 Benchmark]: RCFGBuilder took 622.83 ms. Allocated memory is still 113.2 MB. Free memory was 85.0 MB in the beginning and 60.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,203 INFO L168 Benchmark]: TraceAbstraction took 7344.91 ms. Allocated memory was 113.2 MB in the beginning and 209.7 MB in the end (delta: 96.5 MB). Free memory was 59.9 MB in the beginning and 86.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,204 INFO L168 Benchmark]: Witness Printer took 52.27 ms. Allocated memory is still 209.7 MB. Free memory was 86.1 MB in the beginning and 83.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,206 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 94.4 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 724.24 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.5 MB in the beginning and 88.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.26 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 86.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.33 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 85.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 622.83 ms. Allocated memory is still 113.2 MB. Free memory was 85.0 MB in the beginning and 60.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7344.91 ms. Allocated memory was 113.2 MB in the beginning and 209.7 MB in the end (delta: 96.5 MB). Free memory was 59.9 MB in the beginning and 86.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. * Witness Printer took 52.27 ms. Allocated memory is still 209.7 MB. Free memory was 86.1 MB in the beginning and 83.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1519 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 102 PlacesBefore, 41 PlacesAfterwards, 91 TransitionsBefore, 29 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 4338 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, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 415 SDtfs, 584 SDslu, 732 SDs, 0 SdLazy, 165 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1492occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1296 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 12431 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...