./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_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/safe035_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 70efc5b1533edc3c6ba6ef08e0971226cf57b783 .................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:34:08,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:34:08,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:34:08,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:34:08,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:34:08,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:34:08,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:34:08,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:34:08,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:34:08,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:34:08,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:34:08,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:34:08,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:34:08,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:34:08,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:34:08,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:34:08,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:34:08,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:34:08,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:34:08,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:34:08,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:34:08,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:34:08,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:34:08,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:34:08,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:34:08,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:34:08,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:34:08,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:34:08,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:34:08,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:34:08,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:34:08,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:34:08,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:34:08,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:34:08,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:34:08,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:34:08,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:34:08,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:34:08,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:34:08,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:34:08,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:34:08,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:34:08,477 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:34:08,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:34:08,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:34:08,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:34:08,482 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:34:08,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:34:08,484 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:34:08,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:34:08,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:34:08,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:34:08,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:34:08,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:34:08,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:34:08,486 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:34:08,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:34:08,488 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:34:08,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:34:08,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:34:08,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:34:08,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:34:08,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:34:08,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:08,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:34:08,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:34:08,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:34:08,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:34:08,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:34:08,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:34:08,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:34:08,495 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 -> 70efc5b1533edc3c6ba6ef08e0971226cf57b783 [2019-11-28 18:34:08,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:34:08,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:34:08,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:34:08,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:34:08,801 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:34:08,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2019-11-28 18:34:08,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c72eb587/0396cb675832493c94b3233dad986361/FLAG3a82c26dd [2019-11-28 18:34:09,421 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:34:09,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2019-11-28 18:34:09,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c72eb587/0396cb675832493c94b3233dad986361/FLAG3a82c26dd [2019-11-28 18:34:09,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c72eb587/0396cb675832493c94b3233dad986361 [2019-11-28 18:34:09,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:34:09,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:34:09,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:09,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:34:09,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:34:09,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:09" (1/1) ... [2019-11-28 18:34:09,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513813e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:09, skipping insertion in model container [2019-11-28 18:34:09,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:09" (1/1) ... [2019-11-28 18:34:09,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:34:09,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:34:10,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:10,243 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:34:10,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:10,384 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:34:10,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10 WrapperNode [2019-11-28 18:34:10,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:10,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:10,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:34:10,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:34:10,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:10,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:34:10,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:34:10,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:34:10,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (1/1) ... [2019-11-28 18:34:10,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:34:10,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:34:10,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:34:10,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:34:10,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (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 18:34:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:34:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:34:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:34:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:34:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:34:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:34:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:34:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:34:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:34:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:34:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:34:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:34:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:34:10,531 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 18:34:10,881 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:34:10,881 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:34:10,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:10 BoogieIcfgContainer [2019-11-28 18:34:10,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:34:10,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:34:10,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:34:10,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:34:10,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:34:09" (1/3) ... [2019-11-28 18:34:10,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7a0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:10, skipping insertion in model container [2019-11-28 18:34:10,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:10" (2/3) ... [2019-11-28 18:34:10,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7a0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:10, skipping insertion in model container [2019-11-28 18:34:10,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:10" (3/3) ... [2019-11-28 18:34:10,890 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2019-11-28 18:34:10,900 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:34:10,900 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:34:10,907 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:34:10,907 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:34:10,936 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,936 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,937 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,938 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,938 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,939 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,939 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,940 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,940 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,940 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,941 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,941 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,942 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,942 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,943 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,943 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,944 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,944 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:10,964 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:34:10,979 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:34:10,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:34:10,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:34:10,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:34:10,980 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:34:10,980 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:34:10,980 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:34:10,980 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:34:10,992 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:34:10,994 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:34:11,052 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:34:11,054 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:11,064 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:34:11,067 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:34:11,083 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:34:11,083 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:11,084 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:34:11,086 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:34:11,089 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:34:12,664 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-11-28 18:34:12,681 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-11-28 18:34:12,681 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-11-28 18:34:12,686 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:34:12,699 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:34:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:34:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:34:12,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:12,711 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:12,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-11-28 18:34:12,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:12,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863982295] [2019-11-28 18:34:12,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:13,031 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 18:34:13,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863982295] [2019-11-28 18:34:13,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:13,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:34:13,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233583233] [2019-11-28 18:34:13,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:34:13,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:34:13,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:34:13,057 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-28 18:34:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:13,093 INFO L93 Difference]: Finished difference Result 57 states and 102 transitions. [2019-11-28 18:34:13,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:13,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 18:34:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:13,107 INFO L225 Difference]: With dead ends: 57 [2019-11-28 18:34:13,107 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 18:34:13,109 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 18:34:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 18:34:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2019-11-28 18:34:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-28 18:34:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 54 transitions. [2019-11-28 18:34:13,147 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 54 transitions. Word has length 8 [2019-11-28 18:34:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:13,148 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 54 transitions. [2019-11-28 18:34:13,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:34:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2019-11-28 18:34:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:34:13,150 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:13,150 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:13,150 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:13,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1727732260, now seen corresponding path program 1 times [2019-11-28 18:34:13,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:13,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089682534] [2019-11-28 18:34:13,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:13,289 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 18:34:13,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089682534] [2019-11-28 18:34:13,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:13,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:13,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059984213] [2019-11-28 18:34:13,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:13,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:13,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:13,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:13,293 INFO L87 Difference]: Start difference. First operand 34 states and 54 transitions. Second operand 5 states. [2019-11-28 18:34:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:13,356 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2019-11-28 18:34:13,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:34:13,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:34:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:13,357 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:34:13,358 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:34:13,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 18:34:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:34:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:34:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:34:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-28 18:34:13,364 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 9 [2019-11-28 18:34:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:13,365 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-28 18:34:13,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-28 18:34:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:34:13,366 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:13,366 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:13,367 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:13,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:13,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2029859310, now seen corresponding path program 1 times [2019-11-28 18:34:13,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:13,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369088881] [2019-11-28 18:34:13,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:13,463 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 18:34:13,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369088881] [2019-11-28 18:34:13,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:34:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689731330] [2019-11-28 18:34:13,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:34:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:34:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:13,466 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 6 states. [2019-11-28 18:34:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:13,536 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-11-28 18:34:13,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:34:13,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:34:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:13,537 INFO L225 Difference]: With dead ends: 23 [2019-11-28 18:34:13,537 INFO L226 Difference]: Without dead ends: 15 [2019-11-28 18:34:13,538 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-28 18:34:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-28 18:34:13,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-28 18:34:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 18:34:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-28 18:34:13,542 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-11-28 18:34:13,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:13,542 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-28 18:34:13,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:34:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-28 18:34:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:13,543 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:13,544 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:13,544 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:13,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:13,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-11-28 18:34:13,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:13,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043885779] [2019-11-28 18:34:13,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:13,642 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 18:34:13,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043885779] [2019-11-28 18:34:13,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:13,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:13,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156469939] [2019-11-28 18:34:13,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:13,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:13,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:13,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:13,646 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-11-28 18:34:13,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:13,660 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 18:34:13,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:13,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:34:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:13,661 INFO L225 Difference]: With dead ends: 14 [2019-11-28 18:34:13,661 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:34:13,662 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:34:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:34:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:34:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:34:13,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:34:13,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:13,665 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:34:13,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:13,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:34:13,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:34:13,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:34:13 BasicIcfg [2019-11-28 18:34:13,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:34:13,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:34:13,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:34:13,673 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:34:13,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:10" (3/4) ... [2019-11-28 18:34:13,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:34:13,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:34:13,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:34:13,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:34:13,696 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:34:13,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:34:13,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:34:13,765 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:34:13,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:34:13,767 INFO L168 Benchmark]: Toolchain (without parser) took 4016.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -245.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:13,768 INFO L168 Benchmark]: CDTParser took 0.78 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 18:34:13,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:13,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.47 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 18:34:13,776 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 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 18:34:13,777 INFO L168 Benchmark]: RCFGBuilder took 410.82 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:13,778 INFO L168 Benchmark]: TraceAbstraction took 2789.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:13,783 INFO L168 Benchmark]: Witness Printer took 92.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:13,787 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 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 633.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.47 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 30.33 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 410.82 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2789.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 92.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 47 SDslu, 37 SDs, 0 SdLazy, 37 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1584 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...