./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02083eb7e6ce27884bd79e4f5ca1933e0bd280d7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:43,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:43,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:43,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:43,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:43,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:43,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:43,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:43,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:43,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:43,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:43,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:43,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:43,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:43,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:43,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:43,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:43,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:43,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:43,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:43,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:43,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:43,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:43,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:43,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:43,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:43,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:43,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:43,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:43,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:43,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:43,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:43,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:43,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:43,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:43,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:43,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:43,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:43,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:43,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:43,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:43,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:43,225 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:43,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:43,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:43,236 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:43,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:43,237 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:43,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:43,237 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:43,237 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:43,237 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:43,238 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:43,238 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:43,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:43,238 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:43,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:43,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:43,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:43,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:43,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:43,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:43,241 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:43,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:43,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:43,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:43,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 02083eb7e6ce27884bd79e4f5ca1933e0bd280d7 [2019-10-22 11:25:43,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:43,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:43,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:43,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:43,294 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:43,294 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i [2019-10-22 11:25:43,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/data/016cc837d/d58a0fd1b5e34d34947a98d7552c7a4b/FLAGcc66c86ea [2019-10-22 11:25:43,821 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:43,824 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i [2019-10-22 11:25:43,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/data/016cc837d/d58a0fd1b5e34d34947a98d7552c7a4b/FLAGcc66c86ea [2019-10-22 11:25:44,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/data/016cc837d/d58a0fd1b5e34d34947a98d7552c7a4b [2019-10-22 11:25:44,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:44,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:44,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:44,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:44,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:44,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7dd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44, skipping insertion in model container [2019-10-22 11:25:44,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,155 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:44,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:44,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,582 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:44,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,696 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:44,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44 WrapperNode [2019-10-22 11:25:44,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:44,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:44,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:44,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:44,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:44,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:44,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:44,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:44,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:25:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:25:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:25:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:25:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:25:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:25:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:25:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:25:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:25:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:44,854 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:25:45,275 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:45,276 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:25:45,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45 BoogieIcfgContainer [2019-10-22 11:25:45,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:45,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:45,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:45,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:44" (1/3) ... [2019-10-22 11:25:45,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4f00be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (2/3) ... [2019-10-22 11:25:45,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4f00be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/3) ... [2019-10-22 11:25:45,282 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-10-22 11:25:45,312 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,312 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,313 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,315 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,316 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,348 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:25:45,348 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:45,355 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:45,365 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:45,382 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:45,382 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:45,382 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:45,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:45,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:45,382 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:45,383 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:45,383 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:45,393 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions [2019-10-22 11:25:45,513 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-10-22 11:25:45,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-10-22 11:25:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:25:45,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:45,535 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:45,537 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:45,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:45,542 INFO L82 PathProgramCache]: Analyzing trace with hash 745223180, now seen corresponding path program 1 times [2019-10-22 11:25:45,548 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:45,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415145383] [2019-10-22 11:25:45,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:45,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415145383] [2019-10-22 11:25:45,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:45,869 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:45,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512501847] [2019-10-22 11:25:45,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:45,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:45,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:45,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:45,891 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-10-22 11:25:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:45,994 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-10-22 11:25:45,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:25:45,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 11:25:45,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,020 INFO L225 Difference]: With dead ends: 2493 [2019-10-22 11:25:46,021 INFO L226 Difference]: Without dead ends: 1128 [2019-10-22 11:25:46,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:46,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-22 11:25:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-10-22 11:25:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-10-22 11:25:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-10-22 11:25:46,137 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-10-22 11:25:46,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,138 INFO L462 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-10-22 11:25:46,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-10-22 11:25:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:25:46,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,146 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,146 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1964418814, now seen corresponding path program 1 times [2019-10-22 11:25:46,147 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830832040] [2019-10-22 11:25:46,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830832040] [2019-10-22 11:25:46,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:46,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765927385] [2019-10-22 11:25:46,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:46,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:46,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:46,282 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-10-22 11:25:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,398 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-10-22 11:25:46,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:46,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:25:46,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,405 INFO L225 Difference]: With dead ends: 1168 [2019-10-22 11:25:46,405 INFO L226 Difference]: Without dead ends: 1044 [2019-10-22 11:25:46,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:46,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-10-22 11:25:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-10-22 11:25:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-22 11:25:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-10-22 11:25:46,449 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-10-22 11:25:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,449 INFO L462 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-10-22 11:25:46,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-10-22 11:25:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:25:46,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,452 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,453 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,453 INFO L82 PathProgramCache]: Analyzing trace with hash -109699052, now seen corresponding path program 1 times [2019-10-22 11:25:46,455 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855373022] [2019-10-22 11:25:46,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855373022] [2019-10-22 11:25:46,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:46,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788720798] [2019-10-22 11:25:46,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:46,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:46,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:46,578 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-10-22 11:25:46,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,671 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-10-22 11:25:46,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:25:46,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 11:25:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,675 INFO L225 Difference]: With dead ends: 820 [2019-10-22 11:25:46,675 INFO L226 Difference]: Without dead ends: 708 [2019-10-22 11:25:46,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-22 11:25:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-10-22 11:25:46,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-22 11:25:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-10-22 11:25:46,700 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-10-22 11:25:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,700 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-10-22 11:25:46,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-10-22 11:25:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:46,702 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,703 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,703 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1147902230, now seen corresponding path program 1 times [2019-10-22 11:25:46,703 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744205882] [2019-10-22 11:25:46,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744205882] [2019-10-22 11:25:46,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:25:46,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482926825] [2019-10-22 11:25:46,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:25:46,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:25:46,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:46,834 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2019-10-22 11:25:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,956 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2019-10-22 11:25:46,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:25:46,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:25:46,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,960 INFO L225 Difference]: With dead ends: 1108 [2019-10-22 11:25:46,960 INFO L226 Difference]: Without dead ends: 592 [2019-10-22 11:25:46,961 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:25:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-10-22 11:25:46,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-10-22 11:25:46,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-10-22 11:25:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2019-10-22 11:25:46,982 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2019-10-22 11:25:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,983 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2019-10-22 11:25:46,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:25:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2019-10-22 11:25:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:46,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,986 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,986 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,987 INFO L82 PathProgramCache]: Analyzing trace with hash -544429550, now seen corresponding path program 2 times [2019-10-22 11:25:46,987 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65534801] [2019-10-22 11:25:46,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:47,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65534801] [2019-10-22 11:25:47,098 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:47,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:47,098 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075057468] [2019-10-22 11:25:47,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:47,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:47,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:47,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:47,099 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 6 states. [2019-10-22 11:25:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:47,198 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2019-10-22 11:25:47,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:47,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:25:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:47,201 INFO L225 Difference]: With dead ends: 976 [2019-10-22 11:25:47,201 INFO L226 Difference]: Without dead ends: 556 [2019-10-22 11:25:47,202 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-22 11:25:47,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-10-22 11:25:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-10-22 11:25:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-10-22 11:25:47,225 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-10-22 11:25:47,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:47,225 INFO L462 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-10-22 11:25:47,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-10-22 11:25:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:47,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:47,227 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:47,227 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:47,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1878466138, now seen corresponding path program 3 times [2019-10-22 11:25:47,227 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:47,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321880455] [2019-10-22 11:25:47,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:47,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:47,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:47,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321880455] [2019-10-22 11:25:47,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:47,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:25:47,341 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130073629] [2019-10-22 11:25:47,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:25:47,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:47,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:25:47,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:47,344 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2019-10-22 11:25:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:47,436 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-10-22 11:25:47,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:25:47,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:25:47,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:47,436 INFO L225 Difference]: With dead ends: 428 [2019-10-22 11:25:47,436 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:47,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:25:47,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:47,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-22 11:25:47,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:47,439 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:47,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:25:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:47,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:47,442 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:25:47,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:47 BasicIcfg [2019-10-22 11:25:47,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:47,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:47,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:47,444 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:47,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/4) ... [2019-10-22 11:25:47,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:47,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:25:47,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:25:47,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:25:47,459 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:25:47,460 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:47,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dffae0be-dc76-4e6b-92e8-d5a3988c5c19/bin/utaipan/witness.graphml [2019-10-22 11:25:47,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:47,506 INFO L168 Benchmark]: Toolchain (without parser) took 3367.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.2 MB in the beginning and 787.5 MB in the end (delta: 155.7 MB). Peak memory consumption was 264.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,506 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,507 INFO L168 Benchmark]: Boogie Preprocessor took 46.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,507 INFO L168 Benchmark]: RCFGBuilder took 489.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,508 INFO L168 Benchmark]: TraceAbstraction took 2166.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 787.5 MB in the end (delta: 254.2 MB). Peak memory consumption was 254.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,508 INFO L168 Benchmark]: Witness Printer took 59.78 ms. Allocated memory is still 1.1 GB. Free memory is still 787.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,517 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 558.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 489.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2166.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 787.5 MB in the end (delta: 254.2 MB). Peak memory consumption was 254.2 MB. Max. memory is 11.5 GB. * Witness Printer took 59.78 ms. Allocated memory is still 1.1 GB. Free memory is still 787.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 408 SDslu, 889 SDs, 0 SdLazy, 99 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...