./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/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_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/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_69bb6e78-d9e2-425f-b3d9-3ea766484522/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 1da2a21ed04669479605d762389aa47053d0acc3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:27:41,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:41,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:41,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:41,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:41,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:41,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:41,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:41,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:41,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:41,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:41,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:41,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:41,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:41,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:41,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:41,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:41,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:41,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:41,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:41,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:41,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:41,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:41,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:41,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:41,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:41,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:41,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:41,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:41,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:41,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:41,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:41,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:41,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:41,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:41,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:41,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:41,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:41,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:41,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:41,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:41,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:41,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:41,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:41,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:41,190 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:41,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:41,191 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:41,191 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:41,191 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:41,192 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:41,192 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:41,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:41,192 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:41,193 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:41,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:41,193 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:41,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:41,194 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:41,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:41,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:41,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:41,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:41,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:41,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:41,196 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:41,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:41,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:41,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:41,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:41,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:41,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:41,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:41,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:41,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:41,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:41,199 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:41,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:41,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:41,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:41,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:41,200 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_69bb6e78-d9e2-425f-b3d9-3ea766484522/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1da2a21ed04669479605d762389aa47053d0acc3 [2021-10-11 02:27:41,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:41,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:41,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:41,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:41,489 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:41,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i [2021-10-11 02:27:41,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/data/566bf9b1e/3f52beb1f240462ca052d704a08adeaa/FLAGbc300dcf9 [2021-10-11 02:27:42,114 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:42,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i [2021-10-11 02:27:42,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/data/566bf9b1e/3f52beb1f240462ca052d704a08adeaa/FLAGbc300dcf9 [2021-10-11 02:27:42,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/data/566bf9b1e/3f52beb1f240462ca052d704a08adeaa [2021-10-11 02:27:42,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:42,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:42,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:42,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:42,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:42,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:42" (1/1) ... [2021-10-11 02:27:42,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb41823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:42, skipping insertion in model container [2021-10-11 02:27:42,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:42" (1/1) ... [2021-10-11 02:27:42,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:42,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:42,755 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_69bb6e78-d9e2-425f-b3d9-3ea766484522/sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i[949,962] [2021-10-11 02:27:42,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:42,997 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:43,010 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_69bb6e78-d9e2-425f-b3d9-3ea766484522/sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i[949,962] [2021-10-11 02:27:43,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:43,117 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:43,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43 WrapperNode [2021-10-11 02:27:43,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:43,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:43,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:43,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:43,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:43,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:43,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:43,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:43,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... [2021-10-11 02:27:43,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:43,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:43,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:43,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:43,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/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 02:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:27:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:27:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:27:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:27:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:27:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:27:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-11 02:27:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-11 02:27:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:27:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:43,314 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 02:27:43,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:43,742 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:27:43,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:43 BoogieIcfgContainer [2021-10-11 02:27:43,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:43,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:43,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:43,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:43,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:42" (1/3) ... [2021-10-11 02:27:43,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa3aef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:43, skipping insertion in model container [2021-10-11 02:27:43,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:43" (2/3) ... [2021-10-11 02:27:43,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa3aef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:43, skipping insertion in model container [2021-10-11 02:27:43,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:43" (3/3) ... [2021-10-11 02:27:43,759 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-10-11 02:27:43,771 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:27:43,771 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:43,775 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:43,775 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:27:43,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,819 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,819 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,829 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,829 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,830 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,832 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,833 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,833 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,835 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:43,837 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:27:43,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:27:43,871 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:43,871 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:43,871 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:43,871 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:43,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:43,871 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:43,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:43,872 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:43,883 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:27:43,885 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2021-10-11 02:27:43,888 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2021-10-11 02:27:43,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-10-11 02:27:43,937 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-10-11 02:27:43,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:27:43,945 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 02:27:43,949 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2021-10-11 02:27:47,819 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-10-11 02:27:47,953 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-10-11 02:27:48,182 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-10-11 02:27:48,285 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-10-11 02:27:48,291 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2021-10-11 02:27:48,291 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-10-11 02:27:48,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2021-10-11 02:27:48,402 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2021-10-11 02:27:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2021-10-11 02:27:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:27:48,413 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:48,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:48,414 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:48,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:48,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2021-10-11 02:27:48,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:48,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831932421] [2021-10-11 02:27:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:48,602 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 02:27:48,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831932421] [2021-10-11 02:27:48,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:48,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:48,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038045929] [2021-10-11 02:27:48,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:48,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:48,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:48,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:48,626 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2021-10-11 02:27:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:48,708 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2021-10-11 02:27:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:48,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:27:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:48,756 INFO L225 Difference]: With dead ends: 1450 [2021-10-11 02:27:48,757 INFO L226 Difference]: Without dead ends: 1194 [2021-10-11 02:27:48,758 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 02:27:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-10-11 02:27:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-10-11 02:27:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2021-10-11 02:27:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2021-10-11 02:27:48,941 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2021-10-11 02:27:48,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:48,942 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2021-10-11 02:27:48,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2021-10-11 02:27:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:27:48,954 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:48,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:48,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:48,955 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:48,961 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2021-10-11 02:27:48,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:48,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719690427] [2021-10-11 02:27:48,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:49,196 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 02:27:49,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719690427] [2021-10-11 02:27:49,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:49,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:49,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183213872] [2021-10-11 02:27:49,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:49,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:49,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:49,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:49,211 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2021-10-11 02:27:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:49,285 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2021-10-11 02:27:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:49,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:27:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:49,300 INFO L225 Difference]: With dead ends: 1448 [2021-10-11 02:27:49,300 INFO L226 Difference]: Without dead ends: 1192 [2021-10-11 02:27:49,301 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 02:27:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-10-11 02:27:49,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2021-10-11 02:27:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2021-10-11 02:27:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2021-10-11 02:27:49,357 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2021-10-11 02:27:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:49,358 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2021-10-11 02:27:49,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2021-10-11 02:27:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:27:49,359 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:49,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:49,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:27:49,360 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:49,360 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2021-10-11 02:27:49,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:49,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178623806] [2021-10-11 02:27:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:49,498 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 02:27:49,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178623806] [2021-10-11 02:27:49,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:49,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:49,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069616115] [2021-10-11 02:27:49,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:49,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:49,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:49,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:49,500 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2021-10-11 02:27:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:49,652 INFO L93 Difference]: Finished difference Result 2413 states and 8471 transitions. [2021-10-11 02:27:49,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:27:49,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:27:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:49,671 INFO L225 Difference]: With dead ends: 2413 [2021-10-11 02:27:49,671 INFO L226 Difference]: Without dead ends: 1870 [2021-10-11 02:27:49,672 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 02:27:49,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2021-10-11 02:27:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1492. [2021-10-11 02:27:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2021-10-11 02:27:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5352 transitions. [2021-10-11 02:27:49,755 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5352 transitions. Word has length 12 [2021-10-11 02:27:49,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:49,755 INFO L481 AbstractCegarLoop]: Abstraction has 1492 states and 5352 transitions. [2021-10-11 02:27:49,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5352 transitions. [2021-10-11 02:27:49,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:27:49,757 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:49,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:49,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:27:49,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:49,764 INFO L82 PathProgramCache]: Analyzing trace with hash -832796680, now seen corresponding path program 1 times [2021-10-11 02:27:49,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:49,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595038245] [2021-10-11 02:27:49,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:49,896 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 02:27:49,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595038245] [2021-10-11 02:27:49,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:49,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:49,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894431914] [2021-10-11 02:27:49,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:49,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:49,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:49,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:49,959 INFO L87 Difference]: Start difference. First operand 1492 states and 5352 transitions. Second operand 5 states. [2021-10-11 02:27:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,017 INFO L93 Difference]: Finished difference Result 1618 states and 5634 transitions. [2021-10-11 02:27:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:50,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:27:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,030 INFO L225 Difference]: With dead ends: 1618 [2021-10-11 02:27:50,030 INFO L226 Difference]: Without dead ends: 1366 [2021-10-11 02:27:50,030 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 02:27:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-10-11 02:27:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2021-10-11 02:27:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2021-10-11 02:27:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 4818 transitions. [2021-10-11 02:27:50,087 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 4818 transitions. Word has length 12 [2021-10-11 02:27:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:50,087 INFO L481 AbstractCegarLoop]: Abstraction has 1366 states and 4818 transitions. [2021-10-11 02:27:50,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 4818 transitions. [2021-10-11 02:27:50,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:27:50,089 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:50,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:50,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:27:50,090 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:50,090 INFO L82 PathProgramCache]: Analyzing trace with hash -105254130, now seen corresponding path program 1 times [2021-10-11 02:27:50,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:50,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350599196] [2021-10-11 02:27:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:50,158 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 02:27:50,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350599196] [2021-10-11 02:27:50,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:50,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:50,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695665967] [2021-10-11 02:27:50,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:50,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:50,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:50,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:50,160 INFO L87 Difference]: Start difference. First operand 1366 states and 4818 transitions. Second operand 5 states. [2021-10-11 02:27:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,222 INFO L93 Difference]: Finished difference Result 1456 states and 5010 transitions. [2021-10-11 02:27:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:50,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:27:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,235 INFO L225 Difference]: With dead ends: 1456 [2021-10-11 02:27:50,235 INFO L226 Difference]: Without dead ends: 1276 [2021-10-11 02:27:50,235 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 02:27:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-10-11 02:27:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1168. [2021-10-11 02:27:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2021-10-11 02:27:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 4059 transitions. [2021-10-11 02:27:50,284 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 4059 transitions. Word has length 13 [2021-10-11 02:27:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:50,284 INFO L481 AbstractCegarLoop]: Abstraction has 1168 states and 4059 transitions. [2021-10-11 02:27:50,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 4059 transitions. [2021-10-11 02:27:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:27:50,286 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:50,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:50,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:27:50,287 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:50,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:50,287 INFO L82 PathProgramCache]: Analyzing trace with hash -134657847, now seen corresponding path program 1 times [2021-10-11 02:27:50,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:50,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249428413] [2021-10-11 02:27:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:50,369 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 02:27:50,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249428413] [2021-10-11 02:27:50,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:50,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:50,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041082983] [2021-10-11 02:27:50,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:50,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:50,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:50,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:50,371 INFO L87 Difference]: Start difference. First operand 1168 states and 4059 transitions. Second operand 5 states. [2021-10-11 02:27:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,476 INFO L93 Difference]: Finished difference Result 1879 states and 6375 transitions. [2021-10-11 02:27:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:27:50,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:27:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,489 INFO L225 Difference]: With dead ends: 1879 [2021-10-11 02:27:50,489 INFO L226 Difference]: Without dead ends: 1438 [2021-10-11 02:27:50,490 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 02:27:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-10-11 02:27:50,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1114. [2021-10-11 02:27:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2021-10-11 02:27:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 3834 transitions. [2021-10-11 02:27:50,562 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 3834 transitions. Word has length 13 [2021-10-11 02:27:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:50,563 INFO L481 AbstractCegarLoop]: Abstraction has 1114 states and 3834 transitions. [2021-10-11 02:27:50,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3834 transitions. [2021-10-11 02:27:50,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:27:50,566 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:50,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:50,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:27:50,567 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:50,568 INFO L82 PathProgramCache]: Analyzing trace with hash 118994859, now seen corresponding path program 1 times [2021-10-11 02:27:50,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:50,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853237924] [2021-10-11 02:27:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:50,664 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 02:27:50,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853237924] [2021-10-11 02:27:50,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:50,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:50,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815168579] [2021-10-11 02:27:50,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:50,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:50,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:50,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:50,670 INFO L87 Difference]: Start difference. First operand 1114 states and 3834 transitions. Second operand 5 states. [2021-10-11 02:27:50,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,776 INFO L93 Difference]: Finished difference Result 1831 states and 6166 transitions. [2021-10-11 02:27:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:27:50,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:27:50,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,790 INFO L225 Difference]: With dead ends: 1831 [2021-10-11 02:27:50,790 INFO L226 Difference]: Without dead ends: 1480 [2021-10-11 02:27:50,790 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 02:27:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-10-11 02:27:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1102. [2021-10-11 02:27:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2021-10-11 02:27:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 3745 transitions. [2021-10-11 02:27:50,847 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 3745 transitions. Word has length 14 [2021-10-11 02:27:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:50,847 INFO L481 AbstractCegarLoop]: Abstraction has 1102 states and 3745 transitions. [2021-10-11 02:27:50,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 3745 transitions. [2021-10-11 02:27:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:27:50,849 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:50,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:50,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:27:50,850 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:50,850 INFO L82 PathProgramCache]: Analyzing trace with hash 119501306, now seen corresponding path program 1 times [2021-10-11 02:27:50,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:50,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840350693] [2021-10-11 02:27:50,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:50,946 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 02:27:50,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840350693] [2021-10-11 02:27:50,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:50,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:50,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733431291] [2021-10-11 02:27:50,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:50,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:50,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:50,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:50,949 INFO L87 Difference]: Start difference. First operand 1102 states and 3745 transitions. Second operand 5 states. [2021-10-11 02:27:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,987 INFO L93 Difference]: Finished difference Result 1156 states and 3853 transitions. [2021-10-11 02:27:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:50,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:27:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,997 INFO L225 Difference]: With dead ends: 1156 [2021-10-11 02:27:50,997 INFO L226 Difference]: Without dead ends: 1048 [2021-10-11 02:27:50,998 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 02:27:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-10-11 02:27:51,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 940. [2021-10-11 02:27:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2021-10-11 02:27:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 3196 transitions. [2021-10-11 02:27:51,037 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 3196 transitions. Word has length 14 [2021-10-11 02:27:51,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:51,037 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 3196 transitions. [2021-10-11 02:27:51,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 3196 transitions. [2021-10-11 02:27:51,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:27:51,039 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:51,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:51,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:27:51,040 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:51,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:51,040 INFO L82 PathProgramCache]: Analyzing trace with hash -330143100, now seen corresponding path program 1 times [2021-10-11 02:27:51,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:51,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804077376] [2021-10-11 02:27:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:51,140 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 02:27:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804077376] [2021-10-11 02:27:51,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:51,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:51,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751701016] [2021-10-11 02:27:51,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:27:51,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:51,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:27:51,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:27:51,142 INFO L87 Difference]: Start difference. First operand 940 states and 3196 transitions. Second operand 6 states. [2021-10-11 02:27:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:51,219 INFO L93 Difference]: Finished difference Result 1189 states and 3968 transitions. [2021-10-11 02:27:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:27:51,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 02:27:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:51,225 INFO L225 Difference]: With dead ends: 1189 [2021-10-11 02:27:51,225 INFO L226 Difference]: Without dead ends: 544 [2021-10-11 02:27:51,226 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 02:27:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-10-11 02:27:51,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2021-10-11 02:27:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2021-10-11 02:27:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1746 transitions. [2021-10-11 02:27:51,249 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1746 transitions. Word has length 15 [2021-10-11 02:27:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:51,250 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 1746 transitions. [2021-10-11 02:27:51,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:51,250 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1746 transitions. [2021-10-11 02:27:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:27:51,251 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:51,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:51,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:27:51,252 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:51,253 INFO L82 PathProgramCache]: Analyzing trace with hash -272320691, now seen corresponding path program 1 times [2021-10-11 02:27:51,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:51,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195378782] [2021-10-11 02:27:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:51,317 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 02:27:51,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195378782] [2021-10-11 02:27:51,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:51,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:51,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501439276] [2021-10-11 02:27:51,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:27:51,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:51,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:27:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:27:51,321 INFO L87 Difference]: Start difference. First operand 544 states and 1746 transitions. Second operand 6 states. [2021-10-11 02:27:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:51,379 INFO L93 Difference]: Finished difference Result 676 states and 2098 transitions. [2021-10-11 02:27:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:27:51,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 02:27:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:51,383 INFO L225 Difference]: With dead ends: 676 [2021-10-11 02:27:51,383 INFO L226 Difference]: Without dead ends: 304 [2021-10-11 02:27:51,383 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 02:27:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-11 02:27:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-10-11 02:27:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-10-11 02:27:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2021-10-11 02:27:51,396 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 15 [2021-10-11 02:27:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:51,398 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2021-10-11 02:27:51,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2021-10-11 02:27:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:27:51,399 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:51,399 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 02:27:51,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:27:51,400 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:51,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:51,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1566179768, now seen corresponding path program 1 times [2021-10-11 02:27:51,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:51,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028711828] [2021-10-11 02:27:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:51,473 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 02:27:51,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028711828] [2021-10-11 02:27:51,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:51,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:51,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696538884] [2021-10-11 02:27:51,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:27:51,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:51,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:27:51,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:27:51,477 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 6 states. [2021-10-11 02:27:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:51,531 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2021-10-11 02:27:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:27:51,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:27:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:51,533 INFO L225 Difference]: With dead ends: 388 [2021-10-11 02:27:51,533 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 02:27:51,534 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 02:27:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 02:27:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-11 02:27:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 02:27:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2021-10-11 02:27:51,540 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2021-10-11 02:27:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:51,540 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2021-10-11 02:27:51,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2021-10-11 02:27:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:27:51,541 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:51,541 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 02:27:51,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:27:51,541 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:51,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:51,542 INFO L82 PathProgramCache]: Analyzing trace with hash -590295836, now seen corresponding path program 1 times [2021-10-11 02:27:51,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:51,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494635223] [2021-10-11 02:27:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:51,641 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 02:27:51,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494635223] [2021-10-11 02:27:51,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:51,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:51,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427695796] [2021-10-11 02:27:51,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:51,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:51,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:51,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:51,644 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2021-10-11 02:27:51,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:51,685 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2021-10-11 02:27:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:27:51,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-10-11 02:27:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:51,686 INFO L225 Difference]: With dead ends: 124 [2021-10-11 02:27:51,687 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:51,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:27:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:51,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:51,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-11 02:27:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:51,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:51,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:51,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:51,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:27:51,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:51 BasicIcfg [2021-10-11 02:27:51,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:51,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:51,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:51,693 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:51,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:43" (3/4) ... [2021-10-11 02:27:51,697 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:27:51,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:27:51,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:27:51,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:27:51,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-10-11 02:27:51,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:27:51,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:27:51,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:51,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:51,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb6e78-d9e2-425f-b3d9-3ea766484522/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:51,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:51,774 INFO L168 Benchmark]: Toolchain (without parser) took 9318.82 ms. Allocated memory was 98.6 MB in the beginning and 278.9 MB in the end (delta: 180.4 MB). Free memory was 65.3 MB in the beginning and 169.9 MB in the end (delta: -104.6 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,775 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory was 53.5 MB in the beginning and 53.4 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:51,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.45 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 52.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 50.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,776 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 98.6 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,776 INFO L168 Benchmark]: RCFGBuilder took 550.91 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 48.7 MB in the beginning and 85.8 MB in the end (delta: -37.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,777 INFO L168 Benchmark]: TraceAbstraction took 7946.05 ms. Allocated memory was 130.0 MB in the beginning and 278.9 MB in the end (delta: 148.9 MB). Free memory was 85.0 MB in the beginning and 173.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,777 INFO L168 Benchmark]: Witness Printer took 78.91 ms. Allocated memory is still 278.9 MB. Free memory was 173.1 MB in the beginning and 169.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:51,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory was 53.5 MB in the beginning and 53.4 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.45 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 52.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 50.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 98.6 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 550.91 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 48.7 MB in the beginning and 85.8 MB in the end (delta: -37.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7946.05 ms. Allocated memory was 130.0 MB in the beginning and 278.9 MB in the end (delta: 148.9 MB). Free memory was 85.0 MB in the beginning and 173.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. * Witness Printer took 78.91 ms. Allocated memory is still 278.9 MB. Free memory was 173.1 MB in the beginning and 169.9 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: 0.6s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.4s, 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: 7.8s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 386 SDtfs, 552 SDslu, 678 SDs, 0 SdLazy, 154 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 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, 12 MinimizatonAttempts, 1296 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 11218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...