./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_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/safe034_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 9af683dc64c7885e7b00b3eda56b53791c8b1889 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:33:53,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:33:53,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:33:53,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:33:53,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:33:53,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:33:53,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:33:53,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:33:53,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:33:53,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:33:53,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:33:53,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:33:53,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:33:53,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:33:53,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:33:53,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:33:53,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:33:53,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:33:53,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:33:53,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:33:53,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:33:53,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:33:53,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:33:53,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:33:53,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:33:53,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:33:53,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:33:53,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:33:53,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:33:53,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:33:53,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:33:53,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:33:53,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:33:53,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:33:53,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:33:53,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:33:53,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:33:53,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:33:53,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:33:53,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:33:53,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:33:53,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:33:53,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:33:53,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:33:53,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:33:53,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:33:53,558 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:33:53,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:33:53,559 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:33:53,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:33:53,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:33:53,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:33:53,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:33:53,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:33:53,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:33:53,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:33:53,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:33:53,561 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:33:53,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:33:53,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:33:53,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:33:53,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:33:53,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:33:53,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:33:53,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:33:53,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:33:53,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:33:53,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:33:53,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:33:53,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:33:53,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:33:53,568 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 -> 9af683dc64c7885e7b00b3eda56b53791c8b1889 [2019-11-28 18:33:53,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:33:53,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:33:53,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:33:53,887 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:33:53,889 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:33:53,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2019-11-28 18:33:53,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706889007/38574c362f354fa999cc596b6d71f033/FLAG5fa7bbb70 [2019-11-28 18:33:54,568 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:33:54,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2019-11-28 18:33:54,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706889007/38574c362f354fa999cc596b6d71f033/FLAG5fa7bbb70 [2019-11-28 18:33:54,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706889007/38574c362f354fa999cc596b6d71f033 [2019-11-28 18:33:54,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:33:54,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:33:54,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:33:54,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:33:54,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:33:54,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:33:54" (1/1) ... [2019-11-28 18:33:54,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388be10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:54, skipping insertion in model container [2019-11-28 18:33:54,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:33:54" (1/1) ... [2019-11-28 18:33:54,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:33:54,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:33:55,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:33:55,357 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:33:55,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:33:55,510 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:33:55,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55 WrapperNode [2019-11-28 18:33:55,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:33:55,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:33:55,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:33:55,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:33:55,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:33:55,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:33:55,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:33:55,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:33:55,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (1/1) ... [2019-11-28 18:33:55,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:33:55,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:33:55,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:33:55,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:33:55,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (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 18:33:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:33:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:33:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:33:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:33:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:33:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:33:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:33:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:33:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:33:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:33:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:33:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:33:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:33:55,685 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 18:33:56,095 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:33:56,096 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:33:56,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:56 BoogieIcfgContainer [2019-11-28 18:33:56,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:33:56,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:33:56,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:33:56,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:33:56,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:33:54" (1/3) ... [2019-11-28 18:33:56,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58481442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:33:56, skipping insertion in model container [2019-11-28 18:33:56,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:55" (2/3) ... [2019-11-28 18:33:56,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58481442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:33:56, skipping insertion in model container [2019-11-28 18:33:56,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:56" (3/3) ... [2019-11-28 18:33:56,105 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2019-11-28 18:33:56,115 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:33:56,116 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:33:56,124 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:33:56,125 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:33:56,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,166 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,166 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,169 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,170 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,171 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:56,190 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:33:56,205 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:33:56,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:33:56,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:33:56,206 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:33:56,206 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:33:56,206 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:33:56,207 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:33:56,207 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:33:56,217 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:33:56,219 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:33:56,258 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:33:56,259 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:33:56,267 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 18:33:56,271 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:33:56,289 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:33:56,289 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:33:56,291 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 18:33:56,293 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:33:56,294 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:33:57,624 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:33:57,770 INFO L206 etLargeBlockEncoding]: Checked pairs total: 452 [2019-11-28 18:33:57,770 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-11-28 18:33:57,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:33:57,787 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:33:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:33:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:33:57,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:57,797 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:57,797 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:57,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:57,804 INFO L82 PathProgramCache]: Analyzing trace with hash -225004372, now seen corresponding path program 1 times [2019-11-28 18:33:57,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:57,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42070206] [2019-11-28 18:33:57,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:58,130 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 18:33:58,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42070206] [2019-11-28 18:33:58,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:58,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:33:58,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233583233] [2019-11-28 18:33:58,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:58,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:58,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:58,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:58,158 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2019-11-28 18:33:58,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:58,230 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2019-11-28 18:33:58,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:33:58,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:33:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:58,246 INFO L225 Difference]: With dead ends: 51 [2019-11-28 18:33:58,246 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:33:58,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:33:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:33:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:33:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:33:58,302 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:33:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:58,302 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:33:58,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:33:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:33:58,308 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:58,309 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:58,309 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:58,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1613964581, now seen corresponding path program 1 times [2019-11-28 18:33:58,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:58,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910340888] [2019-11-28 18:33:58,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:58,430 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 18:33:58,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910340888] [2019-11-28 18:33:58,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:58,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:58,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880867252] [2019-11-28 18:33:58,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:33:58,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:58,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:33:58,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:58,434 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-11-28 18:33:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:58,492 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-11-28 18:33:58,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:58,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:33:58,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:58,494 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:33:58,494 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:33:58,495 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 18:33:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:33:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:33:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:33:58,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:33:58,500 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:33:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:58,500 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:33:58,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:33:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:33:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:33:58,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:58,502 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:58,502 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:58,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1506645329, now seen corresponding path program 1 times [2019-11-28 18:33:58,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:58,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617765725] [2019-11-28 18:33:58,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:58,607 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 18:33:58,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617765725] [2019-11-28 18:33:58,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:58,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:33:58,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16010931] [2019-11-28 18:33:58,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:33:58,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:58,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:33:58,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:33:58,610 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 6 states. [2019-11-28 18:33:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:58,707 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-11-28 18:33:58,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:33:58,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:33:58,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:58,709 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:33:58,710 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:33:58,710 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 18:33:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:33:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:33:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:33:58,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-11-28 18:33:58,720 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-11-28 18:33:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:58,721 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-11-28 18:33:58,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:33:58,721 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-28 18:33:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:33:58,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:58,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:58,723 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:58,724 INFO L82 PathProgramCache]: Analyzing trace with hash 538686620, now seen corresponding path program 1 times [2019-11-28 18:33:58,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:58,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043885779] [2019-11-28 18:33:58,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:58,853 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 18:33:58,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043885779] [2019-11-28 18:33:58,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:58,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:58,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994836185] [2019-11-28 18:33:58,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:58,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:58,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:58,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:58,856 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-11-28 18:33:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:58,890 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2019-11-28 18:33:58,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:58,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:33:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:58,892 INFO L225 Difference]: With dead ends: 31 [2019-11-28 18:33:58,892 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:33:58,892 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 18:33:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:33:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-28 18:33:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 18:33:58,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-28 18:33:58,896 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-28 18:33:58,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:58,897 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 18:33:58,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-28 18:33:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:33:58,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:58,898 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:58,899 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:58,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1398224240, now seen corresponding path program 2 times [2019-11-28 18:33:58,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:58,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377217748] [2019-11-28 18:33:58,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:58,983 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 18:33:58,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377217748] [2019-11-28 18:33:58,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:58,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:58,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277515129] [2019-11-28 18:33:58,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:58,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:58,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:58,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:58,985 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-11-28 18:33:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:59,014 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-28 18:33:59,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:59,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:33:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:59,016 INFO L225 Difference]: With dead ends: 17 [2019-11-28 18:33:59,016 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:33:59,016 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 18:33:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:33:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:33:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:33:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:33:59,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:33:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:59,018 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:33:59,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:33:59,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:33:59,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:33:59 BasicIcfg [2019-11-28 18:33:59,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:33:59,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:33:59,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:33:59,023 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:33:59,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:56" (3/4) ... [2019-11-28 18:33:59,028 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:33:59,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:33:59,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:33:59,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:33:59,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:33:59,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:33:59,072 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:33:59,135 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:33:59,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:33:59,138 INFO L168 Benchmark]: Toolchain (without parser) took 4313.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.5 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -242.1 MB). Peak memory consumption was 293.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:59,138 INFO L168 Benchmark]: CDTParser took 0.74 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 18:33:59,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:59,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.75 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 18:33:59,146 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 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 18:33:59,147 INFO L168 Benchmark]: RCFGBuilder took 480.77 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:59,151 INFO L168 Benchmark]: TraceAbstraction took 2924.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.3 MB in the end (delta: 252.7 MB). Peak memory consumption was 252.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:59,153 INFO L168 Benchmark]: Witness Printer took 112.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 827.3 MB in the beginning and 1.2 GB in the end (delta: -375.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:59,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 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 686.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.75 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 27.98 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 480.77 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2924.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.3 MB in the end (delta: 252.7 MB). Peak memory consumption was 252.7 MB. Max. memory is 11.5 GB. * Witness Printer took 112.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 827.3 MB in the beginning and 1.2 GB in the end (delta: -375.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 11 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 452 CheckedPairsTotal, 44 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 50 SDs, 0 SdLazy, 55 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...