./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:07:33,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:07:33,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:07:33,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:07:33,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:07:33,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:07:33,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:07:33,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:07:33,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:07:33,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:07:33,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:07:33,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:07:33,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:07:33,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:07:33,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:07:33,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:07:33,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:07:33,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:07:33,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:07:33,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:07:33,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:07:33,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:07:33,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:07:33,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:07:33,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:07:33,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:07:33,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:07:33,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:07:33,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:07:33,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:07:33,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:07:33,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:07:33,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:07:33,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:07:33,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:07:33,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:07:33,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:07:33,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:07:33,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:07:33,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:07:33,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:07:33,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:07:33,281 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:07:33,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:07:33,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:07:33,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:07:33,287 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:07:33,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:07:33,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:07:33,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:07:33,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:07:33,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:07:33,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:07:33,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:07:33,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:07:33,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:07:33,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:07:33,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:07:33,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:07:33,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:07:33,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:07:33,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:07:33,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:07:33,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:07:33,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:07:33,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:07:33,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:07:33,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:07:33,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:07:33,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:07:33,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:07:33,295 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_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 -> ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 [2020-10-20 03:07:33,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:07:33,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:07:33,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:07:33,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:07:33,538 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:07:33,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2020-10-20 03:07:33,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88a0a6a3/36c6f286875a4ba2a45b5370ac37fd91/FLAG55d558f06 [2020-10-20 03:07:34,112 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:07:34,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2020-10-20 03:07:34,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88a0a6a3/36c6f286875a4ba2a45b5370ac37fd91/FLAG55d558f06 [2020-10-20 03:07:34,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88a0a6a3/36c6f286875a4ba2a45b5370ac37fd91 [2020-10-20 03:07:34,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:07:34,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:07:34,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:34,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:07:34,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:07:34,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:34" (1/1) ... [2020-10-20 03:07:34,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63360965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:34, skipping insertion in model container [2020-10-20 03:07:34,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:34" (1/1) ... [2020-10-20 03:07:34,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:07:34,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:07:34,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:34,940 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:07:34,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:35,092 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:07:35,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35 WrapperNode [2020-10-20 03:07:35,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:35,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:35,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:07:35,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:07:35,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:35,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:07:35,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:07:35,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:07:35,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... [2020-10-20 03:07:35,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:07:35,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:07:35,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:07:35,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:07:35,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:07:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:07:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:07:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:07:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:07:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:07:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:07:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:07:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:07:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:07:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:07:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:07:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:07:35,257 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:07:35,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:07:35,631 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:07:35,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:35 BoogieIcfgContainer [2020-10-20 03:07:35,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:07:35,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:07:35,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:07:35,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:07:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:07:34" (1/3) ... [2020-10-20 03:07:35,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1544e361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:35, skipping insertion in model container [2020-10-20 03:07:35,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:35" (2/3) ... [2020-10-20 03:07:35,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1544e361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:35, skipping insertion in model container [2020-10-20 03:07:35,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:35" (3/3) ... [2020-10-20 03:07:35,649 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2020-10-20 03:07:35,664 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:07:35,665 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:07:35,672 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:07:35,673 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:07:35,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,728 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,728 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:35,730 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:07:35,742 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 03:07:35,760 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:07:35,760 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:07:35,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:07:35,761 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:07:35,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:07:35,761 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:07:35,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:07:35,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:07:35,773 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:07:35,775 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 136 flow [2020-10-20 03:07:35,777 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 136 flow [2020-10-20 03:07:35,779 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 136 flow [2020-10-20 03:07:35,820 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-10-20 03:07:35,820 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:07:35,825 INFO L80 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-20 03:07:35,828 INFO L117 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-20 03:07:37,624 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-20 03:07:37,765 INFO L132 LiptonReduction]: Checked pairs total: 1732 [2020-10-20 03:07:37,766 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-20 03:07:37,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 16 transitions, 42 flow [2020-10-20 03:07:37,787 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-20 03:07:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-20 03:07:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 03:07:37,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:37,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 03:07:37,799 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1371543398, now seen corresponding path program 1 times [2020-10-20 03:07:37,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:37,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486782592] [2020-10-20 03:07:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486782592] [2020-10-20 03:07:38,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:07:38,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213628699] [2020-10-20 03:07:38,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:38,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:38,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,038 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-20 03:07:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,074 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-20 03:07:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:38,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 03:07:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,088 INFO L225 Difference]: With dead ends: 72 [2020-10-20 03:07:38,088 INFO L226 Difference]: Without dead ends: 56 [2020-10-20 03:07:38,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-20 03:07:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-20 03:07:38,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 03:07:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-20 03:07:38,134 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-20 03:07:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,135 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-20 03:07:38,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-20 03:07:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 03:07:38,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:38,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:38,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:07:38,137 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:38,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:38,137 INFO L82 PathProgramCache]: Analyzing trace with hash 403284336, now seen corresponding path program 1 times [2020-10-20 03:07:38,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:38,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560144399] [2020-10-20 03:07:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560144399] [2020-10-20 03:07:38,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:07:38,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141585107] [2020-10-20 03:07:38,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:38,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:38,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,211 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-10-20 03:07:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,230 INFO L93 Difference]: Finished difference Result 55 states and 111 transitions. [2020-10-20 03:07:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:38,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 03:07:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,232 INFO L225 Difference]: With dead ends: 55 [2020-10-20 03:07:38,232 INFO L226 Difference]: Without dead ends: 55 [2020-10-20 03:07:38,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-20 03:07:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-20 03:07:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-20 03:07:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 111 transitions. [2020-10-20 03:07:38,241 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 111 transitions. Word has length 7 [2020-10-20 03:07:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,243 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 111 transitions. [2020-10-20 03:07:38,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 111 transitions. [2020-10-20 03:07:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:07:38,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:38,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:38,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:07:38,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:38,246 INFO L82 PathProgramCache]: Analyzing trace with hash -383094824, now seen corresponding path program 1 times [2020-10-20 03:07:38,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:38,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758848027] [2020-10-20 03:07:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758848027] [2020-10-20 03:07:38,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:38,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007945069] [2020-10-20 03:07:38,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:38,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:38,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:38,407 INFO L87 Difference]: Start difference. First operand 55 states and 111 transitions. Second operand 4 states. [2020-10-20 03:07:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,437 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-10-20 03:07:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:07:38,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-20 03:07:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,439 INFO L225 Difference]: With dead ends: 56 [2020-10-20 03:07:38,439 INFO L226 Difference]: Without dead ends: 40 [2020-10-20 03:07:38,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:38,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-20 03:07:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-20 03:07:38,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-20 03:07:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-20 03:07:38,446 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 8 [2020-10-20 03:07:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,446 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-20 03:07:38,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-20 03:07:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:07:38,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:38,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:38,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:07:38,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:38,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:38,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1007823895, now seen corresponding path program 1 times [2020-10-20 03:07:38,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:38,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898182980] [2020-10-20 03:07:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898182980] [2020-10-20 03:07:38,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:38,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807468827] [2020-10-20 03:07:38,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:38,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:38,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,517 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 3 states. [2020-10-20 03:07:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,526 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2020-10-20 03:07:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:38,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:07:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,529 INFO L225 Difference]: With dead ends: 51 [2020-10-20 03:07:38,529 INFO L226 Difference]: Without dead ends: 41 [2020-10-20 03:07:38,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-20 03:07:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-10-20 03:07:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 03:07:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. [2020-10-20 03:07:38,536 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 9 [2020-10-20 03:07:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,536 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. [2020-10-20 03:07:38,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2020-10-20 03:07:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:07:38,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:38,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:38,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:07:38,538 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:38,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1633722403, now seen corresponding path program 1 times [2020-10-20 03:07:38,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:38,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373815958] [2020-10-20 03:07:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373815958] [2020-10-20 03:07:38,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:38,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973465076] [2020-10-20 03:07:38,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:38,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:38,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,573 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 3 states. [2020-10-20 03:07:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,582 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-10-20 03:07:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:38,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:07:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,583 INFO L225 Difference]: With dead ends: 42 [2020-10-20 03:07:38,583 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 03:07:38,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 03:07:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-10-20 03:07:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 03:07:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-20 03:07:38,588 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-20 03:07:38,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,589 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-20 03:07:38,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-20 03:07:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:07:38,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:38,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:38,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:07:38,591 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:38,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1177733491, now seen corresponding path program 1 times [2020-10-20 03:07:38,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:38,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871596492] [2020-10-20 03:07:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:38,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871596492] [2020-10-20 03:07:38,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:38,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:38,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820954715] [2020-10-20 03:07:38,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:07:38,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:38,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:07:38,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:38,723 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 5 states. [2020-10-20 03:07:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:38,745 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2020-10-20 03:07:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:07:38,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-20 03:07:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:38,746 INFO L225 Difference]: With dead ends: 25 [2020-10-20 03:07:38,746 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:07:38,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:07:38,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:07:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:07:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:07:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:07:38,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-20 03:07:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:38,749 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:07:38,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:07:38,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:07:38,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:07:38,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:07:38,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:07:38 BasicIcfg [2020-10-20 03:07:38,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:07:38,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:07:38,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:07:38,756 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:07:38,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:35" (3/4) ... [2020-10-20 03:07:38,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:07:38,768 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:07:38,768 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:07:38,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 03:07:38,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:07:38,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:38,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:38,823 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:07:38,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:07:38,825 INFO L168 Benchmark]: Toolchain (without parser) took 4369.96 ms. Allocated memory was 34.1 MB in the beginning and 64.0 MB in the end (delta: 29.9 MB). Free memory was 9.6 MB in the beginning and 31.9 MB in the end (delta: -22.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,826 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 33.0 MB. Free memory was 18.1 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.82 ms. Allocated memory was 34.1 MB in the beginning and 44.6 MB in the end (delta: 10.5 MB). Free memory was 8.8 MB in the beginning and 24.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.56 ms. Allocated memory is still 44.6 MB. Free memory was 24.7 MB in the beginning and 22.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,828 INFO L168 Benchmark]: Boogie Preprocessor took 26.78 ms. Allocated memory is still 44.6 MB. Free memory was 22.6 MB in the beginning and 21.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,829 INFO L168 Benchmark]: RCFGBuilder took 461.21 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 21.0 MB in the beginning and 15.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,830 INFO L168 Benchmark]: TraceAbstraction took 3120.10 ms. Allocated memory was 46.7 MB in the beginning and 64.0 MB in the end (delta: 17.3 MB). Free memory was 14.8 MB in the beginning and 35.3 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:07:38,831 INFO L168 Benchmark]: Witness Printer took 68.55 ms. Allocated memory is still 64.0 MB. Free memory was 35.3 MB in the beginning and 31.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:38,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 33.0 MB. Free memory was 18.1 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 631.82 ms. Allocated memory was 34.1 MB in the beginning and 44.6 MB in the end (delta: 10.5 MB). Free memory was 8.8 MB in the beginning and 24.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.56 ms. Allocated memory is still 44.6 MB. Free memory was 24.7 MB in the beginning and 22.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.78 ms. Allocated memory is still 44.6 MB. Free memory was 22.6 MB in the beginning and 21.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 461.21 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 21.0 MB in the beginning and 15.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3120.10 ms. Allocated memory was 46.7 MB in the beginning and 64.0 MB in the end (delta: 17.3 MB). Free memory was 14.8 MB in the beginning and 35.3 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 68.55 ms. Allocated memory is still 64.0 MB. Free memory was 35.3 MB in the beginning and 31.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 536 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 67 PlacesBefore, 22 PlacesAfterwards, 63 TransitionsBefore, 16 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 1732 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 79 SDtfs, 34 SDslu, 63 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 861 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...