./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.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_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68a59830508e5c76a74f62e3397ce0fa72f57022 ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:54:11,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:11,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:11,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:11,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:11,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:11,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:11,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:11,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:11,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:11,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:11,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:11,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:11,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:11,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:11,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:11,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:11,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:11,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:11,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:11,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:11,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:11,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:11,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:11,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:11,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:11,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:11,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:11,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:11,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:11,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:11,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:11,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:11,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:11,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:11,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:11,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:11,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:11,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:11,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:11,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:11,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:11,226 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:11,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:11,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:11,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:11,230 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:11,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:11,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:11,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:11,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:11,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:11,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:11,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:11,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:11,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:11,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:11,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:11,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:11,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer 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 -> Automizer 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 -> 68a59830508e5c76a74f62e3397ce0fa72f57022 [2019-10-22 08:54:11,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:11,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:11,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:11,283 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:11,284 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:11,284 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2019-10-22 08:54:11,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/data/92aa9d7d7/1fffda27eb774c3caed395aeab9dd254/FLAG455cc3772 [2019-10-22 08:54:11,779 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:11,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2019-10-22 08:54:11,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/data/92aa9d7d7/1fffda27eb774c3caed395aeab9dd254/FLAG455cc3772 [2019-10-22 08:54:11,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/data/92aa9d7d7/1fffda27eb774c3caed395aeab9dd254 [2019-10-22 08:54:11,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:11,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:11,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:11,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:11,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:11,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e47d9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11, skipping insertion in model container [2019-10-22 08:54:11,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:11,853 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:12,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,208 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:12,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,305 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:12,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12 WrapperNode [2019-10-22 08:54:12,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:12,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:12,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:12,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:12,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:12,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:12,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:12,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:12,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/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 08:54:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:54:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:54:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:54:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:54:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:54:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:54:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:54:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:12,431 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 08:54:12,873 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:12,874 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:54:12,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12 BoogieIcfgContainer [2019-10-22 08:54:12,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:12,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:12,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:12,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:12,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:11" (1/3) ... [2019-10-22 08:54:12,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205bc8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (2/3) ... [2019-10-22 08:54:12,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205bc8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12" (3/3) ... [2019-10-22 08:54:12,883 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2019-10-22 08:54:12,917 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,919 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,919 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,919 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,919 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,920 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,920 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,920 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,921 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,921 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,922 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,923 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,923 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,923 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,923 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:12,934 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:54:12,934 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:12,944 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:12,956 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:12,974 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:12,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:12,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:12,975 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:12,975 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:12,975 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:12,975 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:12,975 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:12,985 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 42 transitions [2019-10-22 08:54:13,024 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2019-10-22 08:54:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-22 08:54:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:54:13,040 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,041 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] [2019-10-22 08:54:13,042 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1726528678, now seen corresponding path program 1 times [2019-10-22 08:54:13,055 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663608840] [2019-10-22 08:54:13,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,308 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 08:54:13,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663608840] [2019-10-22 08:54:13,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:13,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899837476] [2019-10-22 08:54:13,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:13,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:13,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:13,336 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2019-10-22 08:54:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,419 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2019-10-22 08:54:13,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:54:13,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-22 08:54:13,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,438 INFO L225 Difference]: With dead ends: 444 [2019-10-22 08:54:13,442 INFO L226 Difference]: Without dead ends: 227 [2019-10-22 08:54:13,444 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 08:54:13,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-22 08:54:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-10-22 08:54:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-22 08:54:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2019-10-22 08:54:13,502 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2019-10-22 08:54:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,503 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2019-10-22 08:54:13,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2019-10-22 08:54:13,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:54:13,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,506 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] [2019-10-22 08:54:13,506 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2060627448, now seen corresponding path program 1 times [2019-10-22 08:54:13,507 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097428933] [2019-10-22 08:54:13,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,641 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 08:54:13,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097428933] [2019-10-22 08:54:13,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:54:13,642 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080279995] [2019-10-22 08:54:13,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:13,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:13,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:13,644 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2019-10-22 08:54:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,691 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2019-10-22 08:54:13,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:13,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 08:54:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,693 INFO L225 Difference]: With dead ends: 195 [2019-10-22 08:54:13,693 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 08:54:13,693 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 08:54:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 08:54:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-10-22 08:54:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 08:54:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2019-10-22 08:54:13,706 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2019-10-22 08:54:13,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,706 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2019-10-22 08:54:13,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2019-10-22 08:54:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:54:13,707 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,707 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] [2019-10-22 08:54:13,707 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,708 INFO L82 PathProgramCache]: Analyzing trace with hash 822076318, now seen corresponding path program 1 times [2019-10-22 08:54:13,708 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092250098] [2019-10-22 08:54:13,708 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,708 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,871 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 08:54:13,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092250098] [2019-10-22 08:54:13,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:54:13,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228200669] [2019-10-22 08:54:13,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:54:13,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:54:13,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:54:13,873 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 8 states. [2019-10-22 08:54:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,985 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2019-10-22 08:54:13,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:54:13,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 08:54:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,987 INFO L225 Difference]: With dead ends: 267 [2019-10-22 08:54:13,987 INFO L226 Difference]: Without dead ends: 167 [2019-10-22 08:54:13,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:54:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-10-22 08:54:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-10-22 08:54:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-22 08:54:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2019-10-22 08:54:13,998 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2019-10-22 08:54:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,998 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2019-10-22 08:54:13,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:54:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2019-10-22 08:54:13,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:54:13,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,999 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] [2019-10-22 08:54:14,000 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,000 INFO L82 PathProgramCache]: Analyzing trace with hash 2138233622, now seen corresponding path program 2 times [2019-10-22 08:54:14,000 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,000 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570290983] [2019-10-22 08:54:14,000 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,001 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,133 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 08:54:14,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570290983] [2019-10-22 08:54:14,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:54:14,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080270111] [2019-10-22 08:54:14,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:54:14,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:54:14,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:54:14,134 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 8 states. [2019-10-22 08:54:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,227 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2019-10-22 08:54:14,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:54:14,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 08:54:14,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,228 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:54:14,228 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:14,228 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:54:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:14,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:14,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-22 08:54:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,230 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:14,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:54:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:14,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:14,235 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:54:14,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:14 BasicIcfg [2019-10-22 08:54:14,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:14,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:14,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:14,240 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:14,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12" (3/4) ... [2019-10-22 08:54:14,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:14,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:54:14,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:54:14,258 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 08:54:14,258 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:54:14,307 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe41b8d7-0d9d-447d-9a1c-922df8df7e9a/bin/uautomizer/witness.graphml [2019-10-22 08:54:14,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:14,310 INFO L168 Benchmark]: Toolchain (without parser) took 2502.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 942.0 MB in the beginning and 965.7 MB in the end (delta: -23.7 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,311 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:14,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:14,312 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:14,312 INFO L168 Benchmark]: RCFGBuilder took 513.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,313 INFO L168 Benchmark]: TraceAbstraction took 1363.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,313 INFO L168 Benchmark]: Witness Printer took 67.70 ms. Allocated memory is still 1.2 GB. Free memory was 971.1 MB in the beginning and 965.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,316 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 498.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 513.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1363.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.70 ms. Allocated memory is still 1.2 GB. Free memory was 971.1 MB in the beginning and 965.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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 5 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 188 SDslu, 408 SDs, 0 SdLazy, 62 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...