./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.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/thin002_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 713cebf5ac496914464c3b07e269efb1002ec95d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:34:39,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:34:39,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:34:39,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:34:39,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:34:39,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:34:39,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:34:39,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:34:39,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:34:39,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:34:39,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:34:39,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:34:39,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:34:39,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:34:39,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:34:39,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:34:39,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:34:39,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:34:39,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:34:39,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:34:39,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:34:39,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:34:39,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:34:39,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:34:39,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:34:39,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:34:39,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:34:39,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:34:39,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:34:39,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:34:39,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:34:39,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:34:39,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:34:39,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:34:39,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:34:39,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:34:39,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:34:39,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:34:39,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:34:39,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:34:39,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:34:39,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:34:39,313 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:34:39,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:34:39,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:34:39,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:34:39,316 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:34:39,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:34:39,317 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:34:39,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:34:39,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:34:39,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:34:39,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:34:39,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:34:39,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:34:39,320 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:34:39,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:34:39,321 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:34:39,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:34:39,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:34:39,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:34:39,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:34:39,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:34:39,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:39,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:34:39,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:34:39,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:34:39,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:34:39,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:34:39,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:34:39,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:34:39,325 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 -> 713cebf5ac496914464c3b07e269efb1002ec95d [2019-11-28 18:34:39,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:34:39,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:34:39,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:34:39,670 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:34:39,670 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:34:39,672 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2019-11-28 18:34:39,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93e45569/6c9bb8cfcf784558b3981ddd5fbdbaec/FLAG75f15581d [2019-11-28 18:34:40,380 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:34:40,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2019-11-28 18:34:40,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93e45569/6c9bb8cfcf784558b3981ddd5fbdbaec/FLAG75f15581d [2019-11-28 18:34:40,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93e45569/6c9bb8cfcf784558b3981ddd5fbdbaec [2019-11-28 18:34:40,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:34:40,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:34:40,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:40,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:34:40,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:34:40,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:40" (1/1) ... [2019-11-28 18:34:40,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6256c009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:40, skipping insertion in model container [2019-11-28 18:34:40,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:40" (1/1) ... [2019-11-28 18:34:40,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:34:40,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:34:41,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:41,273 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:34:41,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:41,430 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:34:41,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41 WrapperNode [2019-11-28 18:34:41,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:41,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:41,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:34:41,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:34:41,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:41,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:34:41,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:34:41,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:34:41,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (1/1) ... [2019-11-28 18:34:41,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:34:41,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:34:41,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:34:41,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:34:41,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (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 18:34:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:34:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:34:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:34:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:34:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:34:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:34:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:34:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:34:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:34:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:34:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-28 18:34:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-28 18:34:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:34:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:34:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:34:41,585 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 18:34:42,011 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:34:42,012 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:34:42,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:42 BoogieIcfgContainer [2019-11-28 18:34:42,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:34:42,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:34:42,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:34:42,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:34:42,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:34:40" (1/3) ... [2019-11-28 18:34:42,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26249a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:42, skipping insertion in model container [2019-11-28 18:34:42,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:41" (2/3) ... [2019-11-28 18:34:42,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26249a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:42, skipping insertion in model container [2019-11-28 18:34:42,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:42" (3/3) ... [2019-11-28 18:34:42,026 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2019-11-28 18:34:42,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:34:42,038 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:34:42,056 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:34:42,057 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:34:42,090 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,091 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,091 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,091 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,092 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,092 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,092 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,093 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,093 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,093 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,094 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,094 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,095 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,095 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,096 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,096 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,097 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,097 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,097 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,098 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:42,128 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 18:34:42,152 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:34:42,152 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:34:42,153 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:34:42,153 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:34:42,153 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:34:42,153 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:34:42,154 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:34:42,154 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:34:42,170 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions [2019-11-28 18:34:42,173 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-11-28 18:34:42,223 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-11-28 18:34:42,224 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:42,232 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-11-28 18:34:42,235 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-11-28 18:34:42,256 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-11-28 18:34:42,256 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:42,258 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-11-28 18:34:42,261 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-11-28 18:34:42,263 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:34:43,725 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-11-28 18:34:43,821 INFO L206 etLargeBlockEncoding]: Checked pairs total: 723 [2019-11-28 18:34:43,822 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-11-28 18:34:43,826 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-11-28 18:34:43,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-11-28 18:34:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-11-28 18:34:43,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:34:43,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:43,856 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:43,856 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:43,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:43,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1014881653, now seen corresponding path program 1 times [2019-11-28 18:34:43,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:43,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334994935] [2019-11-28 18:34:43,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:44,177 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 18:34:44,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334994935] [2019-11-28 18:34:44,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:44,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:34:44,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134664585] [2019-11-28 18:34:44,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:34:44,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:44,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:34:44,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:34:44,202 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-11-28 18:34:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:44,235 INFO L93 Difference]: Finished difference Result 102 states and 260 transitions. [2019-11-28 18:34:44,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:44,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:34:44,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:44,250 INFO L225 Difference]: With dead ends: 102 [2019-11-28 18:34:44,250 INFO L226 Difference]: Without dead ends: 70 [2019-11-28 18:34:44,252 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 18:34:44,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-28 18:34:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-11-28 18:34:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-28 18:34:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-11-28 18:34:44,300 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-11-28 18:34:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:44,302 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-11-28 18:34:44,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:34:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-11-28 18:34:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:44,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:44,303 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:44,304 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:44,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:44,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1396559942, now seen corresponding path program 1 times [2019-11-28 18:34:44,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:44,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15632435] [2019-11-28 18:34:44,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:44,385 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 18:34:44,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15632435] [2019-11-28 18:34:44,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:44,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:34:44,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138768575] [2019-11-28 18:34:44,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:34:44,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:44,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:34:44,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:34:44,390 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 3 states. [2019-11-28 18:34:44,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:44,403 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-11-28 18:34:44,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:44,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 18:34:44,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:44,406 INFO L225 Difference]: With dead ends: 66 [2019-11-28 18:34:44,408 INFO L226 Difference]: Without dead ends: 66 [2019-11-28 18:34:44,409 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 18:34:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-28 18:34:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-11-28 18:34:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-28 18:34:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-11-28 18:34:44,427 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-11-28 18:34:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:44,428 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-11-28 18:34:44,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:34:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-11-28 18:34:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 18:34:44,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:44,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:44,432 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:44,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:44,433 INFO L82 PathProgramCache]: Analyzing trace with hash 343681169, now seen corresponding path program 1 times [2019-11-28 18:34:44,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:44,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250600345] [2019-11-28 18:34:44,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:44,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250600345] [2019-11-28 18:34:44,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:44,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:44,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712869395] [2019-11-28 18:34:44,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:44,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:44,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:44,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:44,566 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 5 states. [2019-11-28 18:34:44,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:44,607 INFO L93 Difference]: Finished difference Result 72 states and 159 transitions. [2019-11-28 18:34:44,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:44,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 18:34:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:44,609 INFO L225 Difference]: With dead ends: 72 [2019-11-28 18:34:44,609 INFO L226 Difference]: Without dead ends: 56 [2019-11-28 18:34:44,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-28 18:34:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-11-28 18:34:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 18:34:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2019-11-28 18:34:44,617 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 12 [2019-11-28 18:34:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:44,617 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2019-11-28 18:34:44,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2019-11-28 18:34:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 18:34:44,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:44,619 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:44,619 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:44,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1159720466, now seen corresponding path program 1 times [2019-11-28 18:34:44,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:44,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394920268] [2019-11-28 18:34:44,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:44,763 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 18:34:44,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394920268] [2019-11-28 18:34:44,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:44,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:34:44,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480214315] [2019-11-28 18:34:44,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:44,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:44,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:44,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:44,765 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 4 states. [2019-11-28 18:34:44,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:44,806 INFO L93 Difference]: Finished difference Result 62 states and 131 transitions. [2019-11-28 18:34:44,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:44,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 18:34:44,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:44,808 INFO L225 Difference]: With dead ends: 62 [2019-11-28 18:34:44,808 INFO L226 Difference]: Without dead ends: 62 [2019-11-28 18:34:44,809 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 18:34:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-28 18:34:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2019-11-28 18:34:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-28 18:34:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 122 transitions. [2019-11-28 18:34:44,816 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 122 transitions. Word has length 13 [2019-11-28 18:34:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:44,816 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 122 transitions. [2019-11-28 18:34:44,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 122 transitions. [2019-11-28 18:34:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 18:34:44,818 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:44,818 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:44,818 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1159724186, now seen corresponding path program 2 times [2019-11-28 18:34:44,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:44,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533101065] [2019-11-28 18:34:44,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:44,985 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 18:34:44,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533101065] [2019-11-28 18:34:44,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:44,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:34:44,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897808397] [2019-11-28 18:34:44,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:34:44,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:44,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:34:44,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:44,987 INFO L87 Difference]: Start difference. First operand 58 states and 122 transitions. Second operand 6 states. [2019-11-28 18:34:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:45,075 INFO L93 Difference]: Finished difference Result 63 states and 126 transitions. [2019-11-28 18:34:45,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:34:45,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-28 18:34:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:45,082 INFO L225 Difference]: With dead ends: 63 [2019-11-28 18:34:45,082 INFO L226 Difference]: Without dead ends: 50 [2019-11-28 18:34:45,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-28 18:34:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-28 18:34:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-28 18:34:45,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-28 18:34:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 97 transitions. [2019-11-28 18:34:45,091 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 97 transitions. Word has length 13 [2019-11-28 18:34:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:45,092 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 97 transitions. [2019-11-28 18:34:45,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:34:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 97 transitions. [2019-11-28 18:34:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 18:34:45,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:45,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:45,095 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:45,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:45,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1163202386, now seen corresponding path program 3 times [2019-11-28 18:34:45,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:45,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412178446] [2019-11-28 18:34:45,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:45,184 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 18:34:45,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412178446] [2019-11-28 18:34:45,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:45,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:45,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757448668] [2019-11-28 18:34:45,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:45,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:45,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:45,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:45,187 INFO L87 Difference]: Start difference. First operand 50 states and 97 transitions. Second operand 5 states. [2019-11-28 18:34:45,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:45,217 INFO L93 Difference]: Finished difference Result 60 states and 108 transitions. [2019-11-28 18:34:45,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:45,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-28 18:34:45,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:45,219 INFO L225 Difference]: With dead ends: 60 [2019-11-28 18:34:45,219 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 18:34:45,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 18:34:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 18:34:45,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 18:34:45,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 62 transitions. [2019-11-28 18:34:45,225 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 62 transitions. Word has length 13 [2019-11-28 18:34:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:45,226 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 62 transitions. [2019-11-28 18:34:45,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2019-11-28 18:34:45,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 18:34:45,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:45,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:45,229 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:45,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:45,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1695930658, now seen corresponding path program 1 times [2019-11-28 18:34:45,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:45,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796164223] [2019-11-28 18:34:45,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:45,330 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 18:34:45,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796164223] [2019-11-28 18:34:45,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:45,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:45,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333944771] [2019-11-28 18:34:45,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:45,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:45,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:45,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:45,335 INFO L87 Difference]: Start difference. First operand 37 states and 62 transitions. Second operand 5 states. [2019-11-28 18:34:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:45,364 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2019-11-28 18:34:45,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:45,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 18:34:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:45,366 INFO L225 Difference]: With dead ends: 43 [2019-11-28 18:34:45,366 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 18:34:45,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 18:34:45,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-28 18:34:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 18:34:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2019-11-28 18:34:45,370 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 14 [2019-11-28 18:34:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:45,374 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2019-11-28 18:34:45,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2019-11-28 18:34:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 18:34:45,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:45,376 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:45,377 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:45,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:45,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1405707042, now seen corresponding path program 2 times [2019-11-28 18:34:45,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:45,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206344107] [2019-11-28 18:34:45,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:45,493 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 18:34:45,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206344107] [2019-11-28 18:34:45,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:45,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:45,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158627168] [2019-11-28 18:34:45,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:45,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:45,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:45,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:45,495 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand 5 states. [2019-11-28 18:34:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:45,508 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2019-11-28 18:34:45,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:45,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 18:34:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:45,509 INFO L225 Difference]: With dead ends: 27 [2019-11-28 18:34:45,509 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:34:45,510 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:34:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:34:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:34:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:34:45,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-28 18:34:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:45,511 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:34:45,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:34:45,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:34:45,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:34:45 BasicIcfg [2019-11-28 18:34:45,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:34:45,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:34:45,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:34:45,517 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:34:45,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:42" (3/4) ... [2019-11-28 18:34:45,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:34:45,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:34:45,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:34:45,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:34:45,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-28 18:34:45,541 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-28 18:34:45,541 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:34:45,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:34:45,589 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:34:45,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:34:45,593 INFO L168 Benchmark]: Toolchain (without parser) took 4908.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:45,596 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:45,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:45,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.57 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 18:34:45,600 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 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 18:34:45,600 INFO L168 Benchmark]: RCFGBuilder took 499.44 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:45,601 INFO L168 Benchmark]: TraceAbstraction took 3500.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -56.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:45,602 INFO L168 Benchmark]: Witness Printer took 73.11 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: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:45,608 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 745.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.14 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 499.44 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3500.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -56.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Witness Printer took 73.11 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: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 28 ProgramPointsAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 358 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 723 CheckedPairsTotal, 56 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 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 104 SDtfs, 138 SDslu, 91 SDs, 0 SdLazy, 64 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 4490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...