./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/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/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 [2019-10-22 08:57:37,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:37,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:37,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:37,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:37,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:37,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:37,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:37,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:37,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:37,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:37,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:37,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:37,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:37,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:37,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:37,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:37,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:37,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:37,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:37,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:37,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:37,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:37,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:37,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:37,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:37,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:37,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:37,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:37,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:37,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:37,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:37,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:37,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:37,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:37,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:37,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:37,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:37,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:37,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:37,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:37,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:37,108 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:37,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:37,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:37,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:37,109 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:37,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:37,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:37,110 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:37,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:37,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:37,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:37,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:37,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:37,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:37,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:37,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:37,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:37,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/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 [2019-10-22 08:57:37,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:37,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:37,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:37,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:37,163 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:37,164 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-10-22 08:57:37,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/data/91daca305/8e59d1670d524a2a87362ba954fbbbca/FLAG187df0996 [2019-10-22 08:57:37,637 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:37,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-10-22 08:57:37,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/data/91daca305/8e59d1670d524a2a87362ba954fbbbca/FLAG187df0996 [2019-10-22 08:57:37,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/data/91daca305/8e59d1670d524a2a87362ba954fbbbca [2019-10-22 08:57:37,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:37,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:37,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:37,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:38,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:38,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:37" (1/1) ... [2019-10-22 08:57:38,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38, skipping insertion in model container [2019-10-22 08:57:38,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:37" (1/1) ... [2019-10-22 08:57:38,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:38,047 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:38,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:38,395 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:38,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:38,490 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:38,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38 WrapperNode [2019-10-22 08:57:38,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:38,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:38,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:38,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:38,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:38,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:38,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:38,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:38,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... [2019-10-22 08:57:38,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:38,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:38,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:38,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:38,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2019-10-22 08:57:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2019-10-22 08:57:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2019-10-22 08:57:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2019-10-22 08:57:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-10-22 08:57:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:57:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:38,647 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:57:39,123 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:39,124 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:57:39,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:39 BoogieIcfgContainer [2019-10-22 08:57:39,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:39,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:39,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:39,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:39,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:37" (1/3) ... [2019-10-22 08:57:39,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc0cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:39, skipping insertion in model container [2019-10-22 08:57:39,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:38" (2/3) ... [2019-10-22 08:57:39,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc0cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:39, skipping insertion in model container [2019-10-22 08:57:39,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:39" (3/3) ... [2019-10-22 08:57:39,135 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2019-10-22 08:57:39,171 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,172 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,172 WARN L315 ript$VariableManager]: TermVariabe Thread0_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,172 WARN L315 ript$VariableManager]: TermVariabe Thread0_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,172 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,173 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,173 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,173 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,174 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,174 WARN L315 ript$VariableManager]: TermVariabe |Thread0_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe Thread1_de_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe Thread1_de_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,175 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,176 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,176 WARN L315 ript$VariableManager]: TermVariabe |Thread1_de_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:39,192 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:57:39,193 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:39,199 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:57:39,206 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:57:39,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:39,222 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:39,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:39,222 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:39,222 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:39,222 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:39,222 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:39,223 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:39,232 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 76 transitions [2019-10-22 08:57:39,306 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 785 states. [2019-10-22 08:57:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states. [2019-10-22 08:57:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:57:39,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,320 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:39,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2091080517, now seen corresponding path program 1 times [2019-10-22 08:57:39,335 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224022414] [2019-10-22 08:57:39,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,336 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224022414] [2019-10-22 08:57:39,540 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,540 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:39,540 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495691077] [2019-10-22 08:57:39,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:39,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:39,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:39,559 INFO L87 Difference]: Start difference. First operand 785 states. Second operand 3 states. [2019-10-22 08:57:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,608 INFO L93 Difference]: Finished difference Result 785 states and 1902 transitions. [2019-10-22 08:57:39,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:39,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 08:57:39,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,628 INFO L225 Difference]: With dead ends: 785 [2019-10-22 08:57:39,628 INFO L226 Difference]: Without dead ends: 704 [2019-10-22 08:57:39,630 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 [2019-10-22 08:57:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2019-10-22 08:57:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2019-10-22 08:57:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-10-22 08:57:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1701 transitions. [2019-10-22 08:57:39,712 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1701 transitions. Word has length 33 [2019-10-22 08:57:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,712 INFO L462 AbstractCegarLoop]: Abstraction has 704 states and 1701 transitions. [2019-10-22 08:57:39,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1701 transitions. [2019-10-22 08:57:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 08:57:39,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,714 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] [2019-10-22 08:57:39,715 INFO L410 AbstractCegarLoop]: === Iteration 2 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1255430162, now seen corresponding path program 1 times [2019-10-22 08:57:39,715 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157383410] [2019-10-22 08:57:39,716 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,716 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157383410] [2019-10-22 08:57:39,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:39,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910795319] [2019-10-22 08:57:39,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:39,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:39,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:39,770 INFO L87 Difference]: Start difference. First operand 704 states and 1701 transitions. Second operand 3 states. [2019-10-22 08:57:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,814 INFO L93 Difference]: Finished difference Result 713 states and 1672 transitions. [2019-10-22 08:57:39,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:39,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-10-22 08:57:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,823 INFO L225 Difference]: With dead ends: 713 [2019-10-22 08:57:39,823 INFO L226 Difference]: Without dead ends: 611 [2019-10-22 08:57:39,825 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 [2019-10-22 08:57:39,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-10-22 08:57:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 566. [2019-10-22 08:57:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-22 08:57:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1348 transitions. [2019-10-22 08:57:39,867 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1348 transitions. Word has length 36 [2019-10-22 08:57:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,869 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 1348 transitions. [2019-10-22 08:57:39,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1348 transitions. [2019-10-22 08:57:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 08:57:39,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,871 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] [2019-10-22 08:57:39,871 INFO L410 AbstractCegarLoop]: === Iteration 3 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:39,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2020199094, now seen corresponding path program 1 times [2019-10-22 08:57:39,872 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822806503] [2019-10-22 08:57:39,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822806503] [2019-10-22 08:57:39,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:39,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396181141] [2019-10-22 08:57:39,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:39,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:39,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:39,921 INFO L87 Difference]: Start difference. First operand 566 states and 1348 transitions. Second operand 3 states. [2019-10-22 08:57:39,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,950 INFO L93 Difference]: Finished difference Result 527 states and 1219 transitions. [2019-10-22 08:57:39,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:39,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-10-22 08:57:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,952 INFO L225 Difference]: With dead ends: 527 [2019-10-22 08:57:39,953 INFO L226 Difference]: Without dead ends: 362 [2019-10-22 08:57:39,953 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 [2019-10-22 08:57:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-10-22 08:57:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-10-22 08:57:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-10-22 08:57:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 786 transitions. [2019-10-22 08:57:39,963 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 786 transitions. Word has length 38 [2019-10-22 08:57:39,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,964 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 786 transitions. [2019-10-22 08:57:39,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 786 transitions. [2019-10-22 08:57:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 08:57:39,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,966 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] [2019-10-22 08:57:39,967 INFO L410 AbstractCegarLoop]: === Iteration 4 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:39,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,967 INFO L82 PathProgramCache]: Analyzing trace with hash -435415078, now seen corresponding path program 1 times [2019-10-22 08:57:39,967 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459492275] [2019-10-22 08:57:39,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:40,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459492275] [2019-10-22 08:57:40,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:40,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:40,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666540061] [2019-10-22 08:57:40,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:40,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:40,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:40,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:40,039 INFO L87 Difference]: Start difference. First operand 362 states and 786 transitions. Second operand 3 states. [2019-10-22 08:57:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:40,047 INFO L93 Difference]: Finished difference Result 362 states and 774 transitions. [2019-10-22 08:57:40,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:40,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-22 08:57:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:40,049 INFO L225 Difference]: With dead ends: 362 [2019-10-22 08:57:40,049 INFO L226 Difference]: Without dead ends: 302 [2019-10-22 08:57:40,050 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 [2019-10-22 08:57:40,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-22 08:57:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-10-22 08:57:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-22 08:57:40,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 634 transitions. [2019-10-22 08:57:40,057 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 634 transitions. Word has length 46 [2019-10-22 08:57:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:40,057 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 634 transitions. [2019-10-22 08:57:40,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 634 transitions. [2019-10-22 08:57:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 08:57:40,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:40,059 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] [2019-10-22 08:57:40,059 INFO L410 AbstractCegarLoop]: === Iteration 5 === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1334135258, now seen corresponding path program 2 times [2019-10-22 08:57:40,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:40,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589884923] [2019-10-22 08:57:40,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:40,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:40,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:40,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589884923] [2019-10-22 08:57:40,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:40,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:40,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090653196] [2019-10-22 08:57:40,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:40,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:40,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:40,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:40,107 INFO L87 Difference]: Start difference. First operand 302 states and 634 transitions. Second operand 4 states. [2019-10-22 08:57:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:40,151 INFO L93 Difference]: Finished difference Result 149 states and 298 transitions. [2019-10-22 08:57:40,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:40,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2019-10-22 08:57:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:40,152 INFO L225 Difference]: With dead ends: 149 [2019-10-22 08:57:40,152 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:40,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:40,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2019-10-22 08:57:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:40,153 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:40,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:40,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:40,158 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:57:40,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:40 BasicIcfg [2019-10-22 08:57:40,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:40,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:40,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:40,161 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:40,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:39" (3/4) ... [2019-10-22 08:57:40,165 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:40,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2019-10-22 08:57:40,173 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2019-10-22 08:57:40,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:57:40,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:57:40,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_72e3d715-87d0-4f7c-b737-6b141e383650/bin/uautomizer/witness.graphml [2019-10-22 08:57:40,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:40,243 INFO L168 Benchmark]: Toolchain (without parser) took 2244.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.8 MB in the beginning and 961.5 MB in the end (delta: -23.7 MB). Peak memory consumption was 116.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:40,244 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:40,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:40,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:40,245 INFO L168 Benchmark]: Boogie Preprocessor took 37.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:40,245 INFO L168 Benchmark]: RCFGBuilder took 544.89 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:40,246 INFO L168 Benchmark]: TraceAbstraction took 1034.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 99.2 MB). Peak memory consumption was 99.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:40,246 INFO L168 Benchmark]: Witness Printer took 80.52 ms. Allocated memory is still 1.2 GB. Free memory was 968.1 MB in the beginning and 961.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:40,249 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 492.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.24 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 37.23 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 544.89 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1034.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 99.2 MB). Peak memory consumption was 99.2 MB. Max. memory is 11.5 GB. * Witness Printer took 80.52 ms. Allocated memory is still 1.2 GB. Free memory was 968.1 MB in the beginning and 961.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 338 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 32 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 11932 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...