./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.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_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/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 1b685bacbbd5837a4875c8642768e5522c2d7b85 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:30:30,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:30:30,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:30:30,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:30:30,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:30:30,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:30:30,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:30:30,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:30:30,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:30:30,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:30:30,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:30:30,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:30:30,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:30:30,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:30:30,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:30:30,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:30:30,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:30:30,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:30:30,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:30:30,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:30:30,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:30:30,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:30:30,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:30:30,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:30:30,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:30:30,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:30:30,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:30:30,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:30:30,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:30:30,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:30:30,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:30:30,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:30:30,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:30:30,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:30:30,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:30:30,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:30:30,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:30:30,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:30:30,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:30:30,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:30:30,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:30:30,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:30:30,259 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:30:30,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:30:30,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:30:30,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:30:30,262 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:30:30,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:30:30,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:30:30,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:30:30,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:30:30,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:30:30,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:30:30,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:30:30,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:30:30,264 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:30:30,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:30:30,265 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:30:30,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:30:30,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:30:30,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:30:30,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:30:30,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:30:30,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:30,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:30:30,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:30:30,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:30:30,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:30:30,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:30:30,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:30:30,269 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_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/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 -> 1b685bacbbd5837a4875c8642768e5522c2d7b85 [2019-11-16 00:30:30,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:30:30,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:30:30,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:30:30,320 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:30:30,320 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:30:30,321 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-11-16 00:30:30,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/data/fe65c5542/e416dc5757ef4a55a444be2d14986603/FLAG34f84cc5b [2019-11-16 00:30:30,905 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:30:30,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-11-16 00:30:30,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/data/fe65c5542/e416dc5757ef4a55a444be2d14986603/FLAG34f84cc5b [2019-11-16 00:30:31,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/data/fe65c5542/e416dc5757ef4a55a444be2d14986603 [2019-11-16 00:30:31,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:30:31,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:30:31,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:31,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:30:31,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:30:31,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543dddea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31, skipping insertion in model container [2019-11-16 00:30:31,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,223 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:30:31,271 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:30:31,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:31,719 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:30:31,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:31,889 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:30:31,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31 WrapperNode [2019-11-16 00:30:31,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:31,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:31,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:30:31,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:30:31,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:31,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:30:31,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:30:31,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:30:31,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... [2019-11-16 00:30:31,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:30:31,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:30:31,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:30:31,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:30:32,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/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 [2019-11-16 00:30:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2019-11-16 00:30:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2019-11-16 00:30:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:30:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2019-11-16 00:30:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2019-11-16 00:30:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:30:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-16 00:30:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:30:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:30:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-16 00:30:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:30:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:30:32,084 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-16 00:30:32,690 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:30:32,690 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:30:32,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:32 BoogieIcfgContainer [2019-11-16 00:30:32,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:30:32,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:30:32,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:30:32,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:30:32,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:31" (1/3) ... [2019-11-16 00:30:32,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67898b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:32, skipping insertion in model container [2019-11-16 00:30:32,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:31" (2/3) ... [2019-11-16 00:30:32,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67898b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:32, skipping insertion in model container [2019-11-16 00:30:32,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:32" (3/3) ... [2019-11-16 00:30:32,701 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2019-11-16 00:30:32,739 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,739 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,739 WARN L315 ript$VariableManager]: TermVariabe Thread0_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,740 WARN L315 ript$VariableManager]: TermVariabe Thread0_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,740 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,740 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,741 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,741 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,741 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,742 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,742 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,743 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,743 WARN L315 ript$VariableManager]: TermVariabe Thread1_de_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,743 WARN L315 ript$VariableManager]: TermVariabe Thread1_de_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,743 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,744 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,744 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,744 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:30:32,771 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-16 00:30:32,771 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:30:32,783 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-16 00:30:32,797 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-16 00:30:32,822 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:30:32,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:30:32,822 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:30:32,822 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:30:32,822 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:30:32,823 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:30:32,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:30:32,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:30:32,842 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 76 transitions [2019-11-16 00:30:32,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 785 states. [2019-11-16 00:30:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states. [2019-11-16 00:30:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-16 00:30:32,936 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:32,937 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:30:32,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:32,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2091080517, now seen corresponding path program 1 times [2019-11-16 00:30:32,955 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:32,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097345433] [2019-11-16 00:30:32,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:32,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:32,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:33,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097345433] [2019-11-16 00:30:33,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:33,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:30:33,360 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626832695] [2019-11-16 00:30:33,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:30:33,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:33,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:30:33,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,388 INFO L87 Difference]: Start difference. First operand 785 states. Second operand 3 states. [2019-11-16 00:30:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:33,458 INFO L93 Difference]: Finished difference Result 785 states and 1902 transitions. [2019-11-16 00:30:33,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:30:33,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-16 00:30:33,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:33,487 INFO L225 Difference]: With dead ends: 785 [2019-11-16 00:30:33,487 INFO L226 Difference]: Without dead ends: 704 [2019-11-16 00:30:33,489 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2019-11-16 00:30:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2019-11-16 00:30:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-11-16 00:30:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1701 transitions. [2019-11-16 00:30:33,612 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1701 transitions. Word has length 33 [2019-11-16 00:30:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:33,612 INFO L462 AbstractCegarLoop]: Abstraction has 704 states and 1701 transitions. [2019-11-16 00:30:33,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:30:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1701 transitions. [2019-11-16 00:30:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-16 00:30:33,616 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:33,616 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] [2019-11-16 00:30:33,616 INFO L410 AbstractCegarLoop]: === Iteration 2 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:33,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:33,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1255430162, now seen corresponding path program 1 times [2019-11-16 00:30:33,617 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:33,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032779469] [2019-11-16 00:30:33,618 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:33,618 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:33,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:33,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032779469] [2019-11-16 00:30:33,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:33,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:30:33,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994913332] [2019-11-16 00:30:33,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:30:33,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:33,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:30:33,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,726 INFO L87 Difference]: Start difference. First operand 704 states and 1701 transitions. Second operand 3 states. [2019-11-16 00:30:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:33,770 INFO L93 Difference]: Finished difference Result 713 states and 1672 transitions. [2019-11-16 00:30:33,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:30:33,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-11-16 00:30:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:33,778 INFO L225 Difference]: With dead ends: 713 [2019-11-16 00:30:33,778 INFO L226 Difference]: Without dead ends: 611 [2019-11-16 00:30:33,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-11-16 00:30:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 566. [2019-11-16 00:30:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-11-16 00:30:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1348 transitions. [2019-11-16 00:30:33,836 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1348 transitions. Word has length 36 [2019-11-16 00:30:33,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:33,837 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 1348 transitions. [2019-11-16 00:30:33,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:30:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1348 transitions. [2019-11-16 00:30:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-16 00:30:33,840 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:33,841 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] [2019-11-16 00:30:33,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:33,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:33,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2020199094, now seen corresponding path program 1 times [2019-11-16 00:30:33,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:33,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395564288] [2019-11-16 00:30:33,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:33,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:33,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:33,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395564288] [2019-11-16 00:30:33,937 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:33,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:30:33,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933422843] [2019-11-16 00:30:33,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:30:33,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:33,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:30:33,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,939 INFO L87 Difference]: Start difference. First operand 566 states and 1348 transitions. Second operand 3 states. [2019-11-16 00:30:33,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:33,986 INFO L93 Difference]: Finished difference Result 527 states and 1219 transitions. [2019-11-16 00:30:33,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:30:33,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-11-16 00:30:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:33,990 INFO L225 Difference]: With dead ends: 527 [2019-11-16 00:30:33,990 INFO L226 Difference]: Without dead ends: 362 [2019-11-16 00:30:33,991 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-11-16 00:30:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-11-16 00:30:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-11-16 00:30:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 786 transitions. [2019-11-16 00:30:34,005 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 786 transitions. Word has length 38 [2019-11-16 00:30:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:34,006 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 786 transitions. [2019-11-16 00:30:34,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:30:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 786 transitions. [2019-11-16 00:30:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-16 00:30:34,019 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:34,020 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] [2019-11-16 00:30:34,020 INFO L410 AbstractCegarLoop]: === Iteration 4 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:34,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:34,020 INFO L82 PathProgramCache]: Analyzing trace with hash 181957860, now seen corresponding path program 1 times [2019-11-16 00:30:34,021 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:34,021 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74608900] [2019-11-16 00:30:34,021 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:34,021 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:34,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:34,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74608900] [2019-11-16 00:30:34,114 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:34,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:30:34,114 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607421741] [2019-11-16 00:30:34,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:30:34,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:34,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:30:34,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:30:34,116 INFO L87 Difference]: Start difference. First operand 362 states and 786 transitions. Second operand 4 states. [2019-11-16 00:30:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:34,205 INFO L93 Difference]: Finished difference Result 326 states and 678 transitions. [2019-11-16 00:30:34,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:30:34,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2019-11-16 00:30:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:34,209 INFO L225 Difference]: With dead ends: 326 [2019-11-16 00:30:34,209 INFO L226 Difference]: Without dead ends: 266 [2019-11-16 00:30:34,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:30:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-16 00:30:34,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-16 00:30:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-16 00:30:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 530 transitions. [2019-11-16 00:30:34,220 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 530 transitions. Word has length 46 [2019-11-16 00:30:34,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:34,221 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 530 transitions. [2019-11-16 00:30:34,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:30:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 530 transitions. [2019-11-16 00:30:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-16 00:30:34,222 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:34,223 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] [2019-11-16 00:30:34,223 INFO L410 AbstractCegarLoop]: === Iteration 5 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:34,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:34,223 INFO L82 PathProgramCache]: Analyzing trace with hash 745797958, now seen corresponding path program 1 times [2019-11-16 00:30:34,224 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:34,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436934766] [2019-11-16 00:30:34,224 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:34,224 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:34,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:34,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436934766] [2019-11-16 00:30:34,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:34,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:30:34,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945572184] [2019-11-16 00:30:34,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:30:34,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:34,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:30:34,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:34,276 INFO L87 Difference]: Start difference. First operand 266 states and 530 transitions. Second operand 3 states. [2019-11-16 00:30:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:34,282 INFO L93 Difference]: Finished difference Result 143 states and 268 transitions. [2019-11-16 00:30:34,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:30:34,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-11-16 00:30:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:34,283 INFO L225 Difference]: With dead ends: 143 [2019-11-16 00:30:34,283 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:30:34,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:30:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:30:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:30:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:30:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:30:34,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2019-11-16 00:30:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:34,285 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:30:34,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:30:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:30:34,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:30:34,289 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-16 00:30:34,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:30:34 BasicIcfg [2019-11-16 00:30:34,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:30:34,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:30:34,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:30:34,293 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:30:34,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:32" (3/4) ... [2019-11-16 00:30:34,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:30:34,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2019-11-16 00:30:34,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2019-11-16 00:30:34,311 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-16 00:30:34,311 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-16 00:30:34,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_231fe3d5-2fcb-4204-bdc3-d83c58726bfa/bin/uautomizer/witness.graphml [2019-11-16 00:30:34,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:30:34,363 INFO L168 Benchmark]: Toolchain (without parser) took 3157.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 943.4 MB in the beginning and 995.6 MB in the end (delta: -52.2 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:34,364 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-16 00:30:34,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:34,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.51 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. [2019-11-16 00:30:34,365 INFO L168 Benchmark]: Boogie Preprocessor took 31.03 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. [2019-11-16 00:30:34,365 INFO L168 Benchmark]: RCFGBuilder took 696.38 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:34,366 INFO L168 Benchmark]: TraceAbstraction took 1598.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:34,367 INFO L168 Benchmark]: Witness Printer took 68.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:34,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 684.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.51 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 31.03 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 696.38 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1598.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 688]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 102 locations, 4 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 334 SDtfs, 183 SDslu, 212 SDs, 0 SdLazy, 42 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 11302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...