./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.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/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/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 31469e3abe4a443a6a829744ff5724e959f3747e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:48:34,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:48:34,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:48:34,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:48:34,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:48:34,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:48:34,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:48:34,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:48:34,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:48:34,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:48:34,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:48:34,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:48:34,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:48:34,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:48:34,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:48:34,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:48:34,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:48:34,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:48:34,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:48:34,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:48:34,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:48:34,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:48:34,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:48:34,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:48:34,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:48:34,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:48:34,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:48:34,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:48:34,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:48:34,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:48:34,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:48:34,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:48:34,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:48:34,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:48:34,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:48:34,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:48:34,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:48:34,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:48:34,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:48:34,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:48:34,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:48:34,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:48:34,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:48:34,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:48:34,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:48:34,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:48:34,329 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:48:34,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:48:34,330 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:48:34,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:48:34,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:48:34,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:48:34,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:48:34,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:48:34,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:48:34,331 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:48:34,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:48:34,332 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:48:34,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:48:34,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:48:34,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:48:34,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:48:34,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:48:34,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:48:34,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:48:34,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:48:34,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:48:34,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:48:34,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:48:34,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:48:34,335 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/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/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 -> 31469e3abe4a443a6a829744ff5724e959f3747e [2019-11-15 21:48:34,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:48:34,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:48:34,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:48:34,432 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:48:34,432 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:48:34,433 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2019-11-15 21:48:34,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/data/e39e30f00/66acf77b88794accba940bb72e7a47c9/FLAG9cb23a14c [2019-11-15 21:48:35,149 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:48:35,150 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2019-11-15 21:48:35,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/data/e39e30f00/66acf77b88794accba940bb72e7a47c9/FLAG9cb23a14c [2019-11-15 21:48:35,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/data/e39e30f00/66acf77b88794accba940bb72e7a47c9 [2019-11-15 21:48:35,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:48:35,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:48:35,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:35,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:48:35,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:48:35,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:35" (1/1) ... [2019-11-15 21:48:35,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c191d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:35, skipping insertion in model container [2019-11-15 21:48:35,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:35" (1/1) ... [2019-11-15 21:48:35,404 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:48:35,481 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:48:36,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:36,370 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:48:36,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:36,871 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:48:36,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36 WrapperNode [2019-11-15 21:48:36,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:36,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:36,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:48:36,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:48:36,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:36,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:37,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:48:37,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:48:37,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:48:37,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:37,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:48:37,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:48:37,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:48:37,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:48:37,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/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 [2019-11-15 21:48:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:48:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:48:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-15 21:48:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 21:48:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:48:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:48:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-11-15 21:48:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-11-15 21:48:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:48:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:48:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:48:37,218 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 21:48:38,316 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:48:38,316 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-15 21:48:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:38 BoogieIcfgContainer [2019-11-15 21:48:38,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:48:38,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:48:38,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:48:38,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:48:38,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:48:35" (1/3) ... [2019-11-15 21:48:38,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41de4fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:38, skipping insertion in model container [2019-11-15 21:48:38,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36" (2/3) ... [2019-11-15 21:48:38,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41de4fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:38, skipping insertion in model container [2019-11-15 21:48:38,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:38" (3/3) ... [2019-11-15 21:48:38,327 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2019-11-15 21:48:38,382 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,383 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,383 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,383 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,384 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,384 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,384 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,385 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,385 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,385 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,385 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,385 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,386 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,386 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,386 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,386 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,386 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,387 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,387 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,387 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,387 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,388 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,388 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,388 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,389 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,389 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,389 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,390 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,390 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,390 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,390 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,391 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,391 WARN L315 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,391 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,391 WARN L315 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,392 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,392 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,392 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,392 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,394 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,394 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,394 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,394 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,394 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,395 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,395 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,395 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,395 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,396 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,396 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,396 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,396 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,397 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,397 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,397 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,397 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,398 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,398 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,398 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,398 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,399 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,399 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,399 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,400 WARN L315 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,400 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,400 WARN L315 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:48:38,434 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 21:48:38,434 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:48:38,444 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 21:48:38,457 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 21:48:38,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:48:38,479 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:48:38,479 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:48:38,479 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:48:38,479 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:48:38,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:48:38,480 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:48:38,480 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:48:38,494 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146 places, 154 transitions [2019-11-15 21:48:39,216 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12676 states. [2019-11-15 21:48:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 12676 states. [2019-11-15 21:48:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-15 21:48:39,250 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:39,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:39,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash -300282594, now seen corresponding path program 1 times [2019-11-15 21:48:39,275 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:39,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839363306] [2019-11-15 21:48:39,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:39,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:39,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:40,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839363306] [2019-11-15 21:48:40,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:40,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:48:40,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580596781] [2019-11-15 21:48:40,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:48:40,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:40,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:48:40,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:48:40,039 INFO L87 Difference]: Start difference. First operand 12676 states. Second operand 6 states. [2019-11-15 21:48:41,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:41,362 INFO L93 Difference]: Finished difference Result 16419 states and 46230 transitions. [2019-11-15 21:48:41,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 21:48:41,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-11-15 21:48:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:41,504 INFO L225 Difference]: With dead ends: 16419 [2019-11-15 21:48:41,505 INFO L226 Difference]: Without dead ends: 14347 [2019-11-15 21:48:41,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2019-11-15 21:48:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14347 states. [2019-11-15 21:48:42,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14347 to 11927. [2019-11-15 21:48:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11927 states. [2019-11-15 21:48:42,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11927 states to 11927 states and 33542 transitions. [2019-11-15 21:48:42,303 INFO L78 Accepts]: Start accepts. Automaton has 11927 states and 33542 transitions. Word has length 43 [2019-11-15 21:48:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:42,304 INFO L462 AbstractCegarLoop]: Abstraction has 11927 states and 33542 transitions. [2019-11-15 21:48:42,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:48:42,305 INFO L276 IsEmpty]: Start isEmpty. Operand 11927 states and 33542 transitions. [2019-11-15 21:48:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-15 21:48:42,312 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:42,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:42,313 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:42,314 INFO L82 PathProgramCache]: Analyzing trace with hash 51304295, now seen corresponding path program 1 times [2019-11-15 21:48:42,314 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:42,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748687002] [2019-11-15 21:48:42,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:42,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:42,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:42,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748687002] [2019-11-15 21:48:42,517 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:42,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:48:42,518 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505752147] [2019-11-15 21:48:42,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:48:42,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:42,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:48:42,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:48:42,520 INFO L87 Difference]: Start difference. First operand 11927 states and 33542 transitions. Second operand 5 states. [2019-11-15 21:48:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:42,827 INFO L93 Difference]: Finished difference Result 11921 states and 33535 transitions. [2019-11-15 21:48:42,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:48:42,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-11-15 21:48:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:42,894 INFO L225 Difference]: With dead ends: 11921 [2019-11-15 21:48:42,894 INFO L226 Difference]: Without dead ends: 11921 [2019-11-15 21:48:42,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:48:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2019-11-15 21:48:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11906. [2019-11-15 21:48:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2019-11-15 21:48:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2019-11-15 21:48:43,434 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 47 [2019-11-15 21:48:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:43,435 INFO L462 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2019-11-15 21:48:43,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:48:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2019-11-15 21:48:43,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-15 21:48:43,439 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:43,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:43,440 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:43,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:43,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1075798925, now seen corresponding path program 1 times [2019-11-15 21:48:43,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:43,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897300071] [2019-11-15 21:48:43,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:43,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:43,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:43,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897300071] [2019-11-15 21:48:43,650 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:43,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:48:43,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805879213] [2019-11-15 21:48:43,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:48:43,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:43,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:48:43,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:48:43,653 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 6 states. [2019-11-15 21:48:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:45,044 INFO L93 Difference]: Finished difference Result 15162 states and 42331 transitions. [2019-11-15 21:48:45,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:48:45,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-11-15 21:48:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:45,084 INFO L225 Difference]: With dead ends: 15162 [2019-11-15 21:48:45,084 INFO L226 Difference]: Without dead ends: 13368 [2019-11-15 21:48:45,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-11-15 21:48:45,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2019-11-15 21:48:45,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 13046. [2019-11-15 21:48:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13046 states. [2019-11-15 21:48:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 36709 transitions. [2019-11-15 21:48:45,618 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 36709 transitions. Word has length 49 [2019-11-15 21:48:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:45,620 INFO L462 AbstractCegarLoop]: Abstraction has 13046 states and 36709 transitions. [2019-11-15 21:48:45,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:48:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 36709 transitions. [2019-11-15 21:48:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-15 21:48:45,629 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:45,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:45,629 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:45,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2105977199, now seen corresponding path program 1 times [2019-11-15 21:48:45,630 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:45,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285518391] [2019-11-15 21:48:45,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:45,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:45,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:45,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285518391] [2019-11-15 21:48:45,888 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:45,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:48:45,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476446541] [2019-11-15 21:48:45,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:48:45,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:45,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:48:45,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:48:45,890 INFO L87 Difference]: Start difference. First operand 13046 states and 36709 transitions. Second operand 6 states. [2019-11-15 21:48:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:47,064 INFO L93 Difference]: Finished difference Result 16812 states and 47124 transitions. [2019-11-15 21:48:47,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:48:47,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-11-15 21:48:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:47,122 INFO L225 Difference]: With dead ends: 16812 [2019-11-15 21:48:47,123 INFO L226 Difference]: Without dead ends: 16812 [2019-11-15 21:48:47,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-11-15 21:48:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16812 states. [2019-11-15 21:48:47,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16812 to 13884. [2019-11-15 21:48:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2019-11-15 21:48:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2019-11-15 21:48:47,803 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 53 [2019-11-15 21:48:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:47,805 INFO L462 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2019-11-15 21:48:47,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:48:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2019-11-15 21:48:47,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 21:48:47,832 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:47,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:47,833 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash -424370234, now seen corresponding path program 1 times [2019-11-15 21:48:47,833 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:47,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331150976] [2019-11-15 21:48:47,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:47,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:47,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:48,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331150976] [2019-11-15 21:48:48,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:48,001 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:48:48,001 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209284070] [2019-11-15 21:48:48,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:48:48,002 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:48,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:48:48,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:48:48,003 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 5 states. [2019-11-15 21:48:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:48,151 INFO L93 Difference]: Finished difference Result 8059 states and 22533 transitions. [2019-11-15 21:48:48,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:48:48,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-11-15 21:48:48,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:48,175 INFO L225 Difference]: With dead ends: 8059 [2019-11-15 21:48:48,175 INFO L226 Difference]: Without dead ends: 8059 [2019-11-15 21:48:48,176 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:48:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2019-11-15 21:48:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 8059. [2019-11-15 21:48:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8059 states. [2019-11-15 21:48:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 22533 transitions. [2019-11-15 21:48:48,408 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 22533 transitions. Word has length 57 [2019-11-15 21:48:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:48,409 INFO L462 AbstractCegarLoop]: Abstraction has 8059 states and 22533 transitions. [2019-11-15 21:48:48,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:48:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 22533 transitions. [2019-11-15 21:48:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-15 21:48:48,420 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:48,420 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, 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] [2019-11-15 21:48:48,421 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:48,421 INFO L82 PathProgramCache]: Analyzing trace with hash -349773061, now seen corresponding path program 1 times [2019-11-15 21:48:48,422 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:48,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849893952] [2019-11-15 21:48:48,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:48,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:48,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:48,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849893952] [2019-11-15 21:48:48,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:48,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:48:48,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210737538] [2019-11-15 21:48:48,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:48:48,642 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:48:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:48:48,643 INFO L87 Difference]: Start difference. First operand 8059 states and 22533 transitions. Second operand 6 states. [2019-11-15 21:48:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:49,568 INFO L93 Difference]: Finished difference Result 12465 states and 34445 transitions. [2019-11-15 21:48:49,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:48:49,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-11-15 21:48:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:49,599 INFO L225 Difference]: With dead ends: 12465 [2019-11-15 21:48:49,599 INFO L226 Difference]: Without dead ends: 12465 [2019-11-15 21:48:49,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2019-11-15 21:48:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2019-11-15 21:48:49,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 10346. [2019-11-15 21:48:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10346 states. [2019-11-15 21:48:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 29105 transitions. [2019-11-15 21:48:49,890 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 29105 transitions. Word has length 59 [2019-11-15 21:48:49,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:49,891 INFO L462 AbstractCegarLoop]: Abstraction has 10346 states and 29105 transitions. [2019-11-15 21:48:49,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:48:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 29105 transitions. [2019-11-15 21:48:49,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-15 21:48:49,903 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:49,903 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, 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] [2019-11-15 21:48:49,903 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:49,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:49,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1086154381, now seen corresponding path program 1 times [2019-11-15 21:48:49,904 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:49,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762709526] [2019-11-15 21:48:49,905 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:49,905 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:49,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:50,127 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:48:50,127 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:48:50,242 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 21:48:50,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:48:50 BasicIcfg [2019-11-15 21:48:50,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:48:50,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:48:50,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:48:50,249 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:48:50,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:38" (3/4) ... [2019-11-15 21:48:50,253 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 21:48:50,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_530ceed6-a983-4f29-b563-f56edd6752d3/bin/uautomizer/witness.graphml [2019-11-15 21:48:50,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:48:50,394 INFO L168 Benchmark]: Toolchain (without parser) took 15012.26 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 380.1 MB). Free memory was 939.4 MB in the beginning and 784.4 MB in the end (delta: 154.9 MB). Peak memory consumption was 535.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,395 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:50,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1488.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.4 MB in the beginning and 1.0 GB in the end (delta: -67.0 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,397 INFO L168 Benchmark]: Boogie Preprocessor took 105.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:50,397 INFO L168 Benchmark]: RCFGBuilder took 1197.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 946.3 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,398 INFO L168 Benchmark]: TraceAbstraction took 11929.29 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 946.3 MB in the beginning and 796.9 MB in the end (delta: 149.4 MB). Peak memory consumption was 386.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,399 INFO L168 Benchmark]: Witness Printer took 143.02 ms. Allocated memory is still 1.4 GB. Free memory was 796.9 MB in the beginning and 784.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:50,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1488.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.4 MB in the beginning and 1.0 GB in the end (delta: -67.0 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 140.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1197.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 946.3 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11929.29 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 946.3 MB in the beginning and 796.9 MB in the end (delta: 149.4 MB). Peak memory consumption was 386.9 MB. Max. memory is 11.5 GB. * Witness Printer took 143.02 ms. Allocated memory is still 1.4 GB. Free memory was 796.9 MB in the beginning and 784.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1,t2; VAL [t1={1:0}, t2={-2:0}] [L1731] 0 return 0; VAL [t1={1:0}, t2={-2:0}] [L1737] 0 int ret = my_drv_init(); VAL [t1={1:0}, t2={-2:0}] [L1738] COND TRUE 0 ret==0 VAL [t1={1:0}, t2={-2:0}] [L1739] 0 int probe_ret; VAL [t1={1:0}, t2={-2:0}] [L1740] 0 struct my_data data; VAL [t1={1:0}, t2={-2:0}] [L1706] 0 struct device *d = &data->dev; VAL [t1={1:0}, t2={-2:0}] [L1708] 0 data->shared.a = 0 VAL [t1={1:0}, t2={-2:0}] [L1709] 0 data->shared.b = 0 VAL [t1={1:0}, t2={-2:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [t1={1:0}, t2={-2:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [t1={1:0}, t2={-2:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={-3:24}, t1={1:0}, t2={-2:0}] [L1696] 1 struct device *dev = (struct device*)arg; VAL [arg={-3:24}, arg={-3:24}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1697] 1 struct my_data *data; VAL [arg={-3:24}, arg={-3:24}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1715] 0 return 0; VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1741] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1742] COND TRUE 0 probe_ret==0 VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1721] 0 void *status; VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1722] 0 data->shared.a = 3 VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1723] 0 data->shared.b = 3 VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1700] 1 data->shared.a = 1 VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1724] 0 data->shared.a VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1682] COND TRUE 0 !expression VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] [L1682] 0 __VERIFIER_error() VAL [__mptr={-3:24}, arg={-3:24}, arg={-3:24}, data={-3:0}, dev={-3:24}, t1={1:0}, t2={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 161 locations, 6 error locations. Result: UNSAFE, OverallTime: 11.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1321 SDtfs, 1550 SDslu, 3719 SDs, 0 SdLazy, 739 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13884occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 7804 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 28580 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 incorrect! Received shutdown request...