./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef3edba4896a31c2dc81a6d1953bd6fb4162f181 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:26:15,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:26:15,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:26:15,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:26:15,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:26:15,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:26:15,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:26:15,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:26:15,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:26:15,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:26:15,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:26:15,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:26:15,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:26:15,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:26:15,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:26:15,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:26:15,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:26:15,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:26:15,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:26:15,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:26:15,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:26:15,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:26:15,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:26:15,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:26:15,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:26:15,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:26:15,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:26:15,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:26:15,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:26:15,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:26:15,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:26:15,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:26:15,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:26:15,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:26:15,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:26:15,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:26:15,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:26:15,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:26:15,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:26:15,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:26:15,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:26:15,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:26:15,318 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:26:15,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:26:15,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:26:15,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:26:15,320 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:26:15,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:26:15,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:26:15,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:26:15,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:26:15,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:26:15,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:26:15,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:26:15,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:26:15,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:26:15,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:26:15,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:26:15,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:26:15,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:26:15,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:26:15,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:26:15,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:26:15,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:26:15,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:26:15,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:26:15,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:26:15,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:26:15,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:26:15,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:26:15,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:26:15,329 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(__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 -> ef3edba4896a31c2dc81a6d1953bd6fb4162f181 [2019-11-28 18:26:15,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:26:15,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:26:15,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:26:15,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:26:15,721 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:26:15,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i [2019-11-28 18:26:15,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c4ead18/f915fa4678214427aa60eb00070f2c91/FLAG32c164695 [2019-11-28 18:26:16,303 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:26:16,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i [2019-11-28 18:26:16,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c4ead18/f915fa4678214427aa60eb00070f2c91/FLAG32c164695 [2019-11-28 18:26:16,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c4ead18/f915fa4678214427aa60eb00070f2c91 [2019-11-28 18:26:16,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:26:16,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:26:16,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:26:16,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:26:16,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:26:16,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:26:16" (1/1) ... [2019-11-28 18:26:16,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bfba7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:16, skipping insertion in model container [2019-11-28 18:26:16,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:26:16" (1/1) ... [2019-11-28 18:26:16,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:26:16,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:26:17,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:26:17,162 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:26:17,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:26:17,291 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:26:17,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17 WrapperNode [2019-11-28 18:26:17,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:26:17,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:26:17,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:26:17,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:26:17,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:26:17,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:26:17,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:26:17,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:26:17,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... [2019-11-28 18:26:17,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:26:17,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:26:17,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:26:17,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:26:17,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:26:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:26:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:26:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:26:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:26:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:26:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:26:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:26:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:26:17,442 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:26:17,841 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:26:17,841 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:26:17,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:17 BoogieIcfgContainer [2019-11-28 18:26:17,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:26:17,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:26:17,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:26:17,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:26:17,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:26:16" (1/3) ... [2019-11-28 18:26:17,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aefff09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:26:17, skipping insertion in model container [2019-11-28 18:26:17,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:17" (2/3) ... [2019-11-28 18:26:17,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aefff09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:26:17, skipping insertion in model container [2019-11-28 18:26:17,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:17" (3/3) ... [2019-11-28 18:26:17,850 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2019-11-28 18:26:17,859 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:26:17,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:26:17,866 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:26:17,868 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:26:17,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,895 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,895 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,896 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,896 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,896 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,896 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,897 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,897 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,898 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,898 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,898 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,898 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,898 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,899 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:17,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:26:17,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:26:17,951 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:26:17,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:26:17,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:26:17,953 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:26:17,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:26:17,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:26:17,953 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:26:17,971 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-11-28 18:26:17,973 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:26:18,046 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:26:18,047 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:26:18,056 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:26:18,059 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:26:18,087 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:26:18,088 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:26:18,089 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:26:18,092 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:26:18,093 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:26:19,463 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-11-28 18:26:19,547 INFO L206 etLargeBlockEncoding]: Checked pairs total: 483 [2019-11-28 18:26:19,548 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-11-28 18:26:19,552 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:26:19,565 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:26:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:26:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 18:26:19,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:19,577 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:19,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:19,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:19,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1980902298, now seen corresponding path program 1 times [2019-11-28 18:26:19,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:19,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902428647] [2019-11-28 18:26:19,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:26:19,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902428647] [2019-11-28 18:26:19,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:19,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:26:19,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056375809] [2019-11-28 18:26:19,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:26:19,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:19,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:26:19,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:26:19,856 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-11-28 18:26:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:19,897 INFO L93 Difference]: Finished difference Result 53 states and 112 transitions. [2019-11-28 18:26:19,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:26:19,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-28 18:26:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:19,912 INFO L225 Difference]: With dead ends: 53 [2019-11-28 18:26:19,913 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 18:26:19,915 INFO L630 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 [2019-11-28 18:26:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 18:26:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 18:26:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 18:26:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 52 transitions. [2019-11-28 18:26:19,957 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 52 transitions. Word has length 7 [2019-11-28 18:26:19,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:19,958 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 52 transitions. [2019-11-28 18:26:19,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:26:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2019-11-28 18:26:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:26:19,960 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:19,960 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:19,960 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:19,961 INFO L82 PathProgramCache]: Analyzing trace with hash -889565550, now seen corresponding path program 1 times [2019-11-28 18:26:19,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:19,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457441496] [2019-11-28 18:26:19,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:26:20,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457441496] [2019-11-28 18:26:20,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:20,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:26:20,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601686497] [2019-11-28 18:26:20,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:26:20,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:20,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:26:20,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:26:20,084 INFO L87 Difference]: Start difference. First operand 29 states and 52 transitions. Second operand 4 states. [2019-11-28 18:26:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:20,129 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2019-11-28 18:26:20,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:26:20,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:26:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:20,130 INFO L225 Difference]: With dead ends: 26 [2019-11-28 18:26:20,131 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 18:26:20,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:26:20,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 18:26:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-28 18:26:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 18:26:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 43 transitions. [2019-11-28 18:26:20,137 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 43 transitions. Word has length 8 [2019-11-28 18:26:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:20,137 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 43 transitions. [2019-11-28 18:26:20,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:26:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2019-11-28 18:26:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:26:20,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:20,138 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:20,139 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:20,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:20,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1806905399, now seen corresponding path program 1 times [2019-11-28 18:26:20,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:20,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076219841] [2019-11-28 18:26:20,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:26:20,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076219841] [2019-11-28 18:26:20,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:20,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:26:20,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692802484] [2019-11-28 18:26:20,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:26:20,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:20,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:26:20,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:26:20,213 INFO L87 Difference]: Start difference. First operand 26 states and 43 transitions. Second operand 5 states. [2019-11-28 18:26:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:20,238 INFO L93 Difference]: Finished difference Result 23 states and 37 transitions. [2019-11-28 18:26:20,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:26:20,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:26:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:20,242 INFO L225 Difference]: With dead ends: 23 [2019-11-28 18:26:20,242 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 18:26:20,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:26:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 18:26:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 18:26:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 18:26:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 37 transitions. [2019-11-28 18:26:20,246 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 37 transitions. Word has length 9 [2019-11-28 18:26:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:20,246 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 37 transitions. [2019-11-28 18:26:20,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:26:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2019-11-28 18:26:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:26:20,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:20,247 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:20,247 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash -179492853, now seen corresponding path program 1 times [2019-11-28 18:26:20,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:20,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059573190] [2019-11-28 18:26:20,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:26:20,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059573190] [2019-11-28 18:26:20,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:20,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:26:20,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63881908] [2019-11-28 18:26:20,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:26:20,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:20,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:26:20,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:26:20,324 INFO L87 Difference]: Start difference. First operand 23 states and 37 transitions. Second operand 4 states. [2019-11-28 18:26:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:20,338 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2019-11-28 18:26:20,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:26:20,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 18:26:20,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:20,340 INFO L225 Difference]: With dead ends: 26 [2019-11-28 18:26:20,340 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:26:20,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:26:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:26:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:26:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:26:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:26:20,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-28 18:26:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:20,342 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:26:20,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:26:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:26:20,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:26:20,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:26:20 BasicIcfg [2019-11-28 18:26:20,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:26:20,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:26:20,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:26:20,346 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:26:20,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:17" (3/4) ... [2019-11-28 18:26:20,350 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:26:20,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:26:20,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:26:20,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:26:20,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:26:20,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:26:20,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:26:20,414 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:26:20,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:26:20,416 INFO L168 Benchmark]: Toolchain (without parser) took 3818.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 955.0 MB in the beginning and 834.1 MB in the end (delta: 120.9 MB). Peak memory consumption was 242.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:20,417 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:20,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -134.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:20,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:20,419 INFO L168 Benchmark]: Boogie Preprocessor took 29.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:20,419 INFO L168 Benchmark]: RCFGBuilder took 467.51 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:20,420 INFO L168 Benchmark]: TraceAbstraction took 2502.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.1 MB in the end (delta: 230.2 MB). Peak memory consumption was 230.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:20,421 INFO L168 Benchmark]: Witness Printer took 68.63 ms. Allocated memory is still 1.2 GB. Free memory is still 834.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:20,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 693.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -134.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.05 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 29.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 467.51 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2502.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.1 MB in the end (delta: 230.2 MB). Peak memory consumption was 230.2 MB. Max. memory is 11.5 GB. * Witness Printer took 68.63 ms. Allocated memory is still 1.2 GB. Free memory is still 834.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 250 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 483 CheckedPairsTotal, 45 TotalNumberOfCompositions - 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 23 SDslu, 23 SDs, 0 SdLazy, 41 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...