./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.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_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/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 27d604d37b2c3f2ea585fb22a8a88ba49321a0f0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:55:20,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:20,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:20,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:20,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:20,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:20,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:20,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:20,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:20,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:20,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:20,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:20,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:20,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:20,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:20,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:20,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:20,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:20,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:20,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:20,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:20,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:20,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:20,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:20,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:20,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:20,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:20,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:20,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:20,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:20,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:20,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:20,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:20,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:20,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:20,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:20,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:20,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:20,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:20,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:20,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:20,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:20,173 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:20,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:20,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:20,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:20,175 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:20,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:20,176 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:20,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:20,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:20,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:20,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:20,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:20,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:20,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:20,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:20,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:20,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:20,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:20,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:20,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:20,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:20,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:20,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:20,180 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_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/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 -> 27d604d37b2c3f2ea585fb22a8a88ba49321a0f0 [2019-10-22 08:55:20,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:20,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:20,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:20,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:20,223 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:20,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2019-10-22 08:55:20,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/data/54ed04acd/02115e7b64bf4632937c238d22d15785/FLAG3188cb63e [2019-10-22 08:55:20,741 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:20,741 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2019-10-22 08:55:20,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/data/54ed04acd/02115e7b64bf4632937c238d22d15785/FLAG3188cb63e [2019-10-22 08:55:20,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/data/54ed04acd/02115e7b64bf4632937c238d22d15785 [2019-10-22 08:55:20,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:20,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:20,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:20,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:20,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:20,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561112c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20, skipping insertion in model container [2019-10-22 08:55:20,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,789 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:20,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:21,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:21,312 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:21,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:21,437 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:21,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21 WrapperNode [2019-10-22 08:55:21,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:21,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:21,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:21,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:21,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:21,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:21,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:21,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:21,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... [2019-10-22 08:55:21,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:21,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:21,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:21,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:21,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/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 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:55:21,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:55:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:55:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:55:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:55:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:55:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:55:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:21,576 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 08:55:21,883 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:21,883 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:21,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:21 BoogieIcfgContainer [2019-10-22 08:55:21,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:21,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:21,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:21,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:21,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:20" (1/3) ... [2019-10-22 08:55:21,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e7c4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:21, skipping insertion in model container [2019-10-22 08:55:21,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:21" (2/3) ... [2019-10-22 08:55:21,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e7c4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:21, skipping insertion in model container [2019-10-22 08:55:21,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:21" (3/3) ... [2019-10-22 08:55:21,892 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2019-10-22 08:55:21,927 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,927 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,927 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,928 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,928 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,928 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,929 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,929 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,929 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,929 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,929 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,930 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,930 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,930 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,930 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,930 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,931 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,931 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,931 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,931 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,931 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,932 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,932 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,932 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,932 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,932 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,933 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,933 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,933 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,933 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:21,945 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:21,945 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:21,954 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:21,966 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:21,988 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:21,988 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:21,988 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:21,988 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:21,988 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:21,989 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:21,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:21,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:22,001 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 08:55:22,153 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 08:55:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 08:55:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:55:22,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,172 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] [2019-10-22 08:55:22,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1111812797, now seen corresponding path program 1 times [2019-10-22 08:55:22,187 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363421386] [2019-10-22 08:55:22,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:22,563 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 08:55:22,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363421386] [2019-10-22 08:55:22,566 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:22,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:22,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302708202] [2019-10-22 08:55:22,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:22,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:22,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:22,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:22,594 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 08:55:22,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,705 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 08:55:22,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:22,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:55:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,732 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 08:55:22,732 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 08:55:22,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 08:55:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 08:55:22,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 08:55:22,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 08:55:22,871 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 08:55:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,872 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 08:55:22,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 08:55:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:55:22,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,877 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] [2019-10-22 08:55:22,877 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1651467453, now seen corresponding path program 1 times [2019-10-22 08:55:22,878 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275627514] [2019-10-22 08:55:22,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:23,050 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 08:55:23,050 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275627514] [2019-10-22 08:55:23,050 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:23,050 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:23,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914510828] [2019-10-22 08:55:23,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:23,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:23,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:23,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:23,053 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 08:55:23,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:23,155 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 08:55:23,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:23,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:55:23,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:23,163 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 08:55:23,163 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 08:55:23,164 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 08:55:23,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 08:55:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 08:55:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 08:55:23,205 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 08:55:23,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:23,205 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 08:55:23,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 08:55:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:23,209 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:23,209 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] [2019-10-22 08:55:23,209 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:23,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1610630911, now seen corresponding path program 1 times [2019-10-22 08:55:23,210 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:23,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130986502] [2019-10-22 08:55:23,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:23,345 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 08:55:23,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130986502] [2019-10-22 08:55:23,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:23,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:23,346 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803044264] [2019-10-22 08:55:23,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:23,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:23,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:23,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:23,347 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 08:55:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:23,448 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 08:55:23,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:23,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:55:23,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:23,453 INFO L225 Difference]: With dead ends: 819 [2019-10-22 08:55:23,458 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 08:55:23,459 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:23,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 08:55:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 08:55:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 08:55:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 08:55:23,488 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 08:55:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:23,488 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 08:55:23,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 08:55:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:23,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:23,491 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] [2019-10-22 08:55:23,491 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:23,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1137167997, now seen corresponding path program 1 times [2019-10-22 08:55:23,492 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:23,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106172783] [2019-10-22 08:55:23,492 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:23,658 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 08:55:23,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106172783] [2019-10-22 08:55:23,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:23,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:55:23,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607882825] [2019-10-22 08:55:23,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:23,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:23,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:23,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:23,661 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 7 states. [2019-10-22 08:55:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:23,799 INFO L93 Difference]: Finished difference Result 1187 states and 3490 transitions. [2019-10-22 08:55:23,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:23,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 08:55:23,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:23,804 INFO L225 Difference]: With dead ends: 1187 [2019-10-22 08:55:23,804 INFO L226 Difference]: Without dead ends: 671 [2019-10-22 08:55:23,805 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:55:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2019-10-22 08:55:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2019-10-22 08:55:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2019-10-22 08:55:23,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1974 transitions. [2019-10-22 08:55:23,833 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1974 transitions. Word has length 32 [2019-10-22 08:55:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:23,834 INFO L462 AbstractCegarLoop]: Abstraction has 671 states and 1974 transitions. [2019-10-22 08:55:23,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1974 transitions. [2019-10-22 08:55:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:23,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:23,837 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] [2019-10-22 08:55:23,837 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:23,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:23,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1817163787, now seen corresponding path program 2 times [2019-10-22 08:55:23,838 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:23,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318541144] [2019-10-22 08:55:23,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:23,984 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 08:55:23,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318541144] [2019-10-22 08:55:23,985 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:23,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:55:23,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388371002] [2019-10-22 08:55:23,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:55:23,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:23,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:55:23,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:55:23,986 INFO L87 Difference]: Start difference. First operand 671 states and 1974 transitions. Second operand 8 states. [2019-10-22 08:55:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:24,259 INFO L93 Difference]: Finished difference Result 1839 states and 5566 transitions. [2019-10-22 08:55:24,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:55:24,260 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-10-22 08:55:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:24,264 INFO L225 Difference]: With dead ends: 1839 [2019-10-22 08:55:24,264 INFO L226 Difference]: Without dead ends: 571 [2019-10-22 08:55:24,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:55:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-22 08:55:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2019-10-22 08:55:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-22 08:55:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1702 transitions. [2019-10-22 08:55:24,285 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1702 transitions. Word has length 32 [2019-10-22 08:55:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:24,285 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 1702 transitions. [2019-10-22 08:55:24,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:55:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1702 transitions. [2019-10-22 08:55:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:24,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:24,287 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] [2019-10-22 08:55:24,287 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:24,288 INFO L82 PathProgramCache]: Analyzing trace with hash -956626559, now seen corresponding path program 3 times [2019-10-22 08:55:24,288 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:24,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327009281] [2019-10-22 08:55:24,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:24,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:24,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:24,478 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 08:55:24,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327009281] [2019-10-22 08:55:24,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:24,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:55:24,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184026204] [2019-10-22 08:55:24,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:55:24,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:24,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:55:24,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:55:24,480 INFO L87 Difference]: Start difference. First operand 571 states and 1702 transitions. Second operand 8 states. [2019-10-22 08:55:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:24,583 INFO L93 Difference]: Finished difference Result 443 states and 1286 transitions. [2019-10-22 08:55:24,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:55:24,583 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-10-22 08:55:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:24,584 INFO L225 Difference]: With dead ends: 443 [2019-10-22 08:55:24,584 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:24,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:55:24,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:24,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:55:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:24,585 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:24,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:55:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:24,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:24,589 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:24,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:24 BasicIcfg [2019-10-22 08:55:24,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:24,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:24,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:24,592 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:24,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:21" (3/4) ... [2019-10-22 08:55:24,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:24,605 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:55:24,606 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:55:24,606 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:55:24,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:55:24,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:24,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c7d3daee-84b7-4d6b-8946-f5ba2cc90d04/bin/uautomizer/witness.graphml [2019-10-22 08:55:24,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:24,667 INFO L168 Benchmark]: Toolchain (without parser) took 3897.20 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 251.1 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -270.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:24,667 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:24,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:24,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.13 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 08:55:24,668 INFO L168 Benchmark]: Boogie Preprocessor took 33.43 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:24,669 INFO L168 Benchmark]: RCFGBuilder took 361.50 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:24,669 INFO L168 Benchmark]: TraceAbstraction took 2706.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:24,670 INFO L168 Benchmark]: Witness Printer took 72.73 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:24,676 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 667.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.13 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 33.43 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 361.50 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2706.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.73 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 391 SDtfs, 497 SDslu, 1023 SDs, 0 SdLazy, 131 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...