./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-races/race-1_2-join_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-races/race-1_2-join_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 bbb12092620cbaf3074ed3ddd0daeec7f12dd9c9 .......................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-0ed9222-m [2019-01-13 05:52:53,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:52:53,163 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:52:53,174 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:52:53,174 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:52:53,175 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:52:53,176 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:52:53,178 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:52:53,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:52:53,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:52:53,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:52:53,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:52:53,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:52:53,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:52:53,184 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:52:53,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:52:53,186 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:52:53,188 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:52:53,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:52:53,191 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:52:53,192 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:52:53,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:52:53,196 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:52:53,196 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:52:53,197 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:52:53,197 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:52:53,198 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:52:53,199 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:52:53,200 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:52:53,201 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:52:53,201 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:52:53,202 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:52:53,202 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:52:53,202 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:52:53,203 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:52:53,204 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:52:53,204 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:52:53,219 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:52:53,219 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:52:53,220 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:52:53,220 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:52:53,221 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:52:53,221 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:52:53,221 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:52:53,221 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:52:53,221 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:52:53,222 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:52:53,223 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:52:53,223 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:52:53,223 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:52:53,223 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:52:53,223 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:52:53,224 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:52:53,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:52:53,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:52:53,224 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:52:53,224 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:52:53,225 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:52:53,225 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:52:53,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:52:53,225 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> bbb12092620cbaf3074ed3ddd0daeec7f12dd9c9 [2019-01-13 05:52:53,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:52:53,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:52:53,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:52:53,285 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:52:53,285 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:52:53,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-1_2-join_false-unreach-call.i [2019-01-13 05:52:53,348 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084d769e/782d568f5e3a43db937474859c7b5f2e/FLAG6371a51d0 [2019-01-13 05:52:53,898 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:52:53,898 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-1_2-join_false-unreach-call.i [2019-01-13 05:52:53,920 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084d769e/782d568f5e3a43db937474859c7b5f2e/FLAG6371a51d0 [2019-01-13 05:52:54,142 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084d769e/782d568f5e3a43db937474859c7b5f2e [2019-01-13 05:52:54,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:52:54,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:52:54,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:52:54,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:52:54,153 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:52:54,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:52:54" (1/1) ... [2019-01-13 05:52:54,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378931a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:54, skipping insertion in model container [2019-01-13 05:52:54,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:52:54" (1/1) ... [2019-01-13 05:52:54,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:52:54,243 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:52:55,077 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:52:55,096 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:52:55,285 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:52:55,737 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:52:55,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55 WrapperNode [2019-01-13 05:52:55,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:52:55,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:52:55,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:52:55,740 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:52:55,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:52:55,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:52:55,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:52:55,870 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:52:55,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... [2019-01-13 05:52:55,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:52:55,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:52:55,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:52:55,960 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:52:55,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-13 05:52:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:52:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 05:52:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-13 05:52:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-13 05:52:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:52:56,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:52:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:52:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-13 05:52:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-01-13 05:52:56,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-01-13 05:52:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:52:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-13 05:52:56,057 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-13 05:52:57,034 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:52:57,035 INFO L286 CfgBuilder]: Removed 16 assue(true) statements. [2019-01-13 05:52:57,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:52:57 BoogieIcfgContainer [2019-01-13 05:52:57,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:52:57,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:52:57,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:52:57,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:52:57,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:52:54" (1/3) ... [2019-01-13 05:52:57,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e97d6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:52:57, skipping insertion in model container [2019-01-13 05:52:57,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:52:55" (2/3) ... [2019-01-13 05:52:57,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e97d6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:52:57, skipping insertion in model container [2019-01-13 05:52:57,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:52:57" (3/3) ... [2019-01-13 05:52:57,047 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join_false-unreach-call.i [2019-01-13 05:52:57,083 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,084 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,084 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,085 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,085 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,085 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,085 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:52:57,120 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:52:57,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:52:57,131 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-13 05:52:57,149 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-13 05:52:57,175 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:52:57,176 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:52:57,176 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:52:57,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:52:57,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:52:57,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:52:57,177 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:52:57,177 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:52:57,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:52:57,188 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82places, 86 transitions [2019-01-13 05:52:57,209 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 241 states. [2019-01-13 05:52:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states. [2019-01-13 05:52:57,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-01-13 05:52:57,219 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:52:57,221 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:52:57,223 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:52:57,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:52:57,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1750137003, now seen corresponding path program 1 times [2019-01-13 05:52:57,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:52:57,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:52:57,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:57,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:52:57,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:52:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:52:57,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:52:57,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:52:57,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:52:57,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:52:57,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:52:57,738 INFO L87 Difference]: Start difference. First operand 241 states. Second operand 5 states. [2019-01-13 05:52:58,084 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-01-13 05:52:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:52:58,338 INFO L93 Difference]: Finished difference Result 239 states and 386 transitions. [2019-01-13 05:52:58,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:52:58,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-01-13 05:52:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:52:58,353 INFO L225 Difference]: With dead ends: 239 [2019-01-13 05:52:58,353 INFO L226 Difference]: Without dead ends: 183 [2019-01-13 05:52:58,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-13 05:52:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-01-13 05:52:58,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-01-13 05:52:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-01-13 05:52:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 294 transitions. [2019-01-13 05:52:58,411 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 294 transitions. Word has length 25 [2019-01-13 05:52:58,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:52:58,412 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 294 transitions. [2019-01-13 05:52:58,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:52:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 294 transitions. [2019-01-13 05:52:58,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:52:58,415 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:52:58,415 INFO L402 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] [2019-01-13 05:52:58,415 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:52:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:52:58,416 INFO L82 PathProgramCache]: Analyzing trace with hash 369839385, now seen corresponding path program 1 times [2019-01-13 05:52:58,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:52:58,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:52:58,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:58,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:52:58,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:52:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:52:58,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:52:58,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-13 05:52:58,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 05:52:58,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 05:52:58,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-13 05:52:58,732 INFO L87 Difference]: Start difference. First operand 183 states and 294 transitions. Second operand 8 states. [2019-01-13 05:52:59,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:52:59,378 INFO L93 Difference]: Finished difference Result 181 states and 292 transitions. [2019-01-13 05:52:59,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-13 05:52:59,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-13 05:52:59,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:52:59,383 INFO L225 Difference]: With dead ends: 181 [2019-01-13 05:52:59,383 INFO L226 Difference]: Without dead ends: 175 [2019-01-13 05:52:59,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-01-13 05:52:59,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-01-13 05:52:59,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-01-13 05:52:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-01-13 05:52:59,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 286 transitions. [2019-01-13 05:52:59,405 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 286 transitions. Word has length 33 [2019-01-13 05:52:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:52:59,406 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 286 transitions. [2019-01-13 05:52:59,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 05:52:59,406 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 286 transitions. [2019-01-13 05:52:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-01-13 05:52:59,411 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:52:59,412 INFO L402 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] [2019-01-13 05:52:59,412 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:52:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:52:59,412 INFO L82 PathProgramCache]: Analyzing trace with hash -393037267, now seen corresponding path program 1 times [2019-01-13 05:52:59,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:52:59,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:52:59,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:59,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:52:59,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:52:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:52:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:52:59,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:52:59,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-13 05:52:59,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 05:52:59,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 05:52:59,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-13 05:52:59,800 INFO L87 Difference]: Start difference. First operand 175 states and 286 transitions. Second operand 8 states. [2019-01-13 05:53:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:53:00,272 INFO L93 Difference]: Finished difference Result 277 states and 449 transitions. [2019-01-13 05:53:00,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-13 05:53:00,275 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2019-01-13 05:53:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:53:00,278 INFO L225 Difference]: With dead ends: 277 [2019-01-13 05:53:00,278 INFO L226 Difference]: Without dead ends: 277 [2019-01-13 05:53:00,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-01-13 05:53:00,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-01-13 05:53:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 183. [2019-01-13 05:53:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-01-13 05:53:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 298 transitions. [2019-01-13 05:53:00,317 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 298 transitions. Word has length 36 [2019-01-13 05:53:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:53:00,318 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 298 transitions. [2019-01-13 05:53:00,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 05:53:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 298 transitions. [2019-01-13 05:53:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-01-13 05:53:00,322 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:53:00,322 INFO L402 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] [2019-01-13 05:53:00,322 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:53:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:53:00,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1348332885, now seen corresponding path program 1 times [2019-01-13 05:53:00,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:53:00,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:53:00,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:53:00,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:53:00,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:53:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 05:53:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 05:53:00,416 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 05:53:00,455 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:53:00,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:53:00 BasicIcfg [2019-01-13 05:53:00,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:53:00,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:53:00,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:53:00,459 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:53:00,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:52:57" (3/4) ... [2019-01-13 05:53:00,464 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-13 05:53:00,527 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:53:00,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:53:00,528 INFO L168 Benchmark]: Toolchain (without parser) took 6380.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 828.9 MB in the end (delta: 116.9 MB). Peak memory consumption was 260.6 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,529 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:53:00,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1589.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -69.1 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.11 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,532 INFO L168 Benchmark]: Boogie Preprocessor took 90.60 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. [2019-01-13 05:53:00,533 INFO L168 Benchmark]: RCFGBuilder took 1076.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 970.1 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,534 INFO L168 Benchmark]: TraceAbstraction took 3420.61 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 835.6 MB in the end (delta: 134.5 MB). Peak memory consumption was 134.5 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,535 INFO L168 Benchmark]: Witness Printer took 68.02 ms. Allocated memory is still 1.2 GB. Free memory was 835.6 MB in the beginning and 828.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-13 05:53:00,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1589.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -69.1 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 129.11 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.60 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 1076.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 970.1 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3420.61 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 835.6 MB in the end (delta: 134.5 MB). Peak memory consumption was 134.5 MB. Max. memory is 11.5 GB. * Witness Printer took 68.02 ms. Allocated memory is still 1.2 GB. Free memory was 835.6 MB in the beginning and 828.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3766]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3768] -1 pthread_t t1; VAL [t1={1:0}] [L3769] -1 pthread_mutex_t mutex; VAL [mutex={-1:0}, t1={1:0}] [L3770] -1 int pdev; VAL [mutex={-1:0}, pdev=0, t1={1:0}] [L3782] -1 pdev = 1 VAL [mutex={-1:0}, pdev=1, t1={1:0}] [L3766] COND FALSE -1 !(!expression) VAL [mutex={-1:0}, pdev=1, t1={1:0}] [L3784] COND TRUE -1 __VERIFIER_nondet_int() VAL [mutex={-1:0}, pdev=1, t1={1:0}] [L3786] FCALL, FORK -1 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={-1:0}, pdev=1, t1={1:0}] [L3788] -1 pdev = 2 VAL [arg={0:0}, mutex={-1:0}, pdev=2, t1={1:0}] [L3774] 0 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={-1:0}, pdev=6, t1={1:0}] [L3766] COND TRUE -1 !expression VAL [arg={0:0}, arg={0:0}, mutex={-1:0}, pdev=6, t1={1:0}] [L3766] -1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, mutex={-1:0}, pdev=6, t1={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 4 error locations. UNSAFE Result, 3.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 208 SDtfs, 334 SDslu, 714 SDs, 0 SdLazy, 136 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 94 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 4290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...