./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe016_pso.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6963db7fce396e00371f494f6797e19a5cce06a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:05:07,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:05:07,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:05:07,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:05:07,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:05:07,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:05:07,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:05:07,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:05:07,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:05:07,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:05:07,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:05:07,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:05:07,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:05:07,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:05:07,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:05:07,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:05:07,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:05:07,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:05:07,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:05:07,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:05:07,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:05:07,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:05:07,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:05:07,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:05:07,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:05:07,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:05:07,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:05:07,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:05:07,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:05:07,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:05:07,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:05:07,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:05:07,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:05:07,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:05:07,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:05:07,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:05:07,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:05:07,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:05:07,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:05:07,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:05:07,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:05:07,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:05:07,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:05:07,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:05:07,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:05:07,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:05:07,300 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:05:07,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:05:07,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:05:07,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:05:07,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:05:07,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:05:07,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:05:07,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:05:07,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:05:07,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:05:07,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:05:07,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:05:07,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:05:07,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:05:07,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:05:07,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:05:07,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:05:07,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:05:07,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:05:07,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:05:07,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:05:07,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:05:07,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:05:07,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:05:07,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:05:07,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6963db7fce396e00371f494f6797e19a5cce06a [2020-10-20 03:05:07,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:05:07,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:05:07,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:05:07,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:05:07,538 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:05:07,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i [2020-10-20 03:05:07,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41692ac8/4dba59dd5cfd40ac8f1d288948817e82/FLAGae9e60e37 [2020-10-20 03:05:08,213 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:05:08,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i [2020-10-20 03:05:08,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41692ac8/4dba59dd5cfd40ac8f1d288948817e82/FLAGae9e60e37 [2020-10-20 03:05:08,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41692ac8/4dba59dd5cfd40ac8f1d288948817e82 [2020-10-20 03:05:08,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:05:08,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:05:08,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:05:08,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:05:08,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:05:08,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:05:08" (1/1) ... [2020-10-20 03:05:08,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:08, skipping insertion in model container [2020-10-20 03:05:08,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:05:08" (1/1) ... [2020-10-20 03:05:08,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:05:08,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:05:08,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:05:08,964 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:05:09,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:05:09,107 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:05:09,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09 WrapperNode [2020-10-20 03:05:09,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:05:09,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:05:09,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:05:09,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:05:09,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:05:09,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:05:09,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:05:09,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:05:09,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... [2020-10-20 03:05:09,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:05:09,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:05:09,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:05:09,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:05:09,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:05:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:05:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:05:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:05:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:05:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:05:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:05:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:05:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-20 03:05:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-20 03:05:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:05:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:05:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:05:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:05:09,269 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:05:09,658 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:05:09,658 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:05:09,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:09 BoogieIcfgContainer [2020-10-20 03:05:09,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:05:09,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:05:09,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:05:09,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:05:09,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:05:08" (1/3) ... [2020-10-20 03:05:09,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ccdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:05:09, skipping insertion in model container [2020-10-20 03:05:09,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:09" (2/3) ... [2020-10-20 03:05:09,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ccdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:05:09, skipping insertion in model container [2020-10-20 03:05:09,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:09" (3/3) ... [2020-10-20 03:05:09,670 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-10-20 03:05:09,682 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:05:09,682 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:05:09,690 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:05:09,690 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:05:09,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,719 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,720 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,723 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,726 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,726 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,726 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,727 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,727 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,732 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,746 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,746 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,757 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,757 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,757 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,758 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:09,769 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:05:09,780 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-20 03:05:09,798 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:05:09,799 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:05:09,799 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:05:09,799 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:05:09,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:05:09,799 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:05:09,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:05:09,799 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:05:09,812 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:05:09,815 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-20 03:05:09,818 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-20 03:05:09,820 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-10-20 03:05:09,872 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-20 03:05:09,872 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:05:09,893 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-20 03:05:09,898 INFO L117 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-20 03:05:12,037 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-20 03:05:12,345 INFO L132 LiptonReduction]: Checked pairs total: 4334 [2020-10-20 03:05:12,345 INFO L134 LiptonReduction]: Total number of compositions: 82 [2020-10-20 03:05:12,354 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-20 03:05:12,434 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-20 03:05:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-20 03:05:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:05:12,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:12,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:12,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:12,454 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-10-20 03:05:12,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:12,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826621790] [2020-10-20 03:05:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:12,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826621790] [2020-10-20 03:05:12,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:12,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:05:12,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898840923] [2020-10-20 03:05:12,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:12,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:12,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:12,743 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-20 03:05:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:12,805 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-20 03:05:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:12,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 03:05:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:12,835 INFO L225 Difference]: With dead ends: 670 [2020-10-20 03:05:12,835 INFO L226 Difference]: Without dead ends: 526 [2020-10-20 03:05:12,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-20 03:05:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-20 03:05:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-20 03:05:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-20 03:05:12,971 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-20 03:05:12,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:12,972 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-20 03:05:12,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:12,972 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-20 03:05:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:05:12,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:12,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:12,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:05:12,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:12,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:12,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-10-20 03:05:12,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:12,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519920817] [2020-10-20 03:05:12,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519920817] [2020-10-20 03:05:13,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:13,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899681031] [2020-10-20 03:05:13,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:13,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:13,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:13,064 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-20 03:05:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,097 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-10-20 03:05:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:05:13,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 03:05:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,103 INFO L225 Difference]: With dead ends: 748 [2020-10-20 03:05:13,103 INFO L226 Difference]: Without dead ends: 460 [2020-10-20 03:05:13,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-20 03:05:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-10-20 03:05:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-20 03:05:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-10-20 03:05:13,125 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 11 [2020-10-20 03:05:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,125 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-10-20 03:05:13,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-10-20 03:05:13,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:05:13,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:05:13,128 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,129 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-10-20 03:05:13,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601903075] [2020-10-20 03:05:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601903075] [2020-10-20 03:05:13,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:05:13,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939447608] [2020-10-20 03:05:13,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:13,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:13,230 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-10-20 03:05:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,254 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-10-20 03:05:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:13,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-20 03:05:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,260 INFO L225 Difference]: With dead ends: 442 [2020-10-20 03:05:13,260 INFO L226 Difference]: Without dead ends: 442 [2020-10-20 03:05:13,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-20 03:05:13,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-20 03:05:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-20 03:05:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-10-20 03:05:13,277 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-10-20 03:05:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,277 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-10-20 03:05:13,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-10-20 03:05:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:05:13,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:05:13,281 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,282 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-10-20 03:05:13,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366180230] [2020-10-20 03:05:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366180230] [2020-10-20 03:05:13,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:05:13,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667155225] [2020-10-20 03:05:13,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:13,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:13,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:13,348 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 4 states. [2020-10-20 03:05:13,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,378 INFO L93 Difference]: Finished difference Result 788 states and 2333 transitions. [2020-10-20 03:05:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:05:13,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 03:05:13,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,382 INFO L225 Difference]: With dead ends: 788 [2020-10-20 03:05:13,383 INFO L226 Difference]: Without dead ends: 412 [2020-10-20 03:05:13,383 INFO L677 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 [2020-10-20 03:05:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-20 03:05:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-10-20 03:05:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-20 03:05:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-10-20 03:05:13,398 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 13 [2020-10-20 03:05:13,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,398 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-10-20 03:05:13,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:13,399 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-10-20 03:05:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:05:13,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:05:13,401 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-10-20 03:05:13,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734944793] [2020-10-20 03:05:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734944793] [2020-10-20 03:05:13,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:13,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963998444] [2020-10-20 03:05:13,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:13,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:13,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:13,447 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-10-20 03:05:13,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,472 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-10-20 03:05:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:05:13,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 03:05:13,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,475 INFO L225 Difference]: With dead ends: 494 [2020-10-20 03:05:13,476 INFO L226 Difference]: Without dead ends: 254 [2020-10-20 03:05:13,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:13,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-20 03:05:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-20 03:05:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-20 03:05:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-10-20 03:05:13,485 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-10-20 03:05:13,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,486 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-10-20 03:05:13,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-10-20 03:05:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 03:05:13,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:05:13,488 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,489 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-10-20 03:05:13,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783627472] [2020-10-20 03:05:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783627472] [2020-10-20 03:05:13,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:13,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038463856] [2020-10-20 03:05:13,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:13,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:13,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:13,578 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-10-20 03:05:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,616 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-10-20 03:05:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:05:13,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-20 03:05:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,619 INFO L225 Difference]: With dead ends: 315 [2020-10-20 03:05:13,619 INFO L226 Difference]: Without dead ends: 230 [2020-10-20 03:05:13,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-20 03:05:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-20 03:05:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-20 03:05:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-10-20 03:05:13,627 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-10-20 03:05:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,628 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-10-20 03:05:13,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-10-20 03:05:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:05:13,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:05:13,630 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,630 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-10-20 03:05:13,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010576746] [2020-10-20 03:05:13,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010576746] [2020-10-20 03:05:13,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:05:13,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132465433] [2020-10-20 03:05:13,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:05:13,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:05:13,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:13,686 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-10-20 03:05:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,735 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-10-20 03:05:13,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:05:13,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 03:05:13,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,737 INFO L225 Difference]: With dead ends: 246 [2020-10-20 03:05:13,737 INFO L226 Difference]: Without dead ends: 178 [2020-10-20 03:05:13,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:05:13,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-20 03:05:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-20 03:05:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-20 03:05:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-10-20 03:05:13,744 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-10-20 03:05:13,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,744 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-10-20 03:05:13,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:05:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-10-20 03:05:13,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:05:13,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:05:13,746 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-10-20 03:05:13,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728033153] [2020-10-20 03:05:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:13,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728033153] [2020-10-20 03:05:13,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:13,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:05:13,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874868230] [2020-10-20 03:05:13,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:05:13,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:13,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:05:13,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:05:13,856 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-10-20 03:05:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:13,965 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-10-20 03:05:13,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:05:13,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-20 03:05:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:13,967 INFO L225 Difference]: With dead ends: 171 [2020-10-20 03:05:13,967 INFO L226 Difference]: Without dead ends: 137 [2020-10-20 03:05:13,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:05:13,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-20 03:05:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-20 03:05:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-20 03:05:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-10-20 03:05:13,977 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-10-20 03:05:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:13,978 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-10-20 03:05:13,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:05:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-10-20 03:05:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:05:13,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:13,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:13,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:05:13,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:13,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-10-20 03:05:13,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:13,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323158974] [2020-10-20 03:05:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:14,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323158974] [2020-10-20 03:05:14,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:14,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 03:05:14,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004412958] [2020-10-20 03:05:14,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 03:05:14,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 03:05:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:05:14,072 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-10-20 03:05:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:14,144 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-10-20 03:05:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 03:05:14,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-20 03:05:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:14,145 INFO L225 Difference]: With dead ends: 132 [2020-10-20 03:05:14,145 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 03:05:14,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:05:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 03:05:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-20 03:05:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 03:05:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-20 03:05:14,148 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-10-20 03:05:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:14,148 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-20 03:05:14,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 03:05:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-20 03:05:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 03:05:14,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:14,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:14,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:05:14,149 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:14,150 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-10-20 03:05:14,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:14,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455892622] [2020-10-20 03:05:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:14,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455892622] [2020-10-20 03:05:14,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:14,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:14,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137034081] [2020-10-20 03:05:14,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:14,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:14,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:14,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:14,185 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-20 03:05:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:14,191 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-20 03:05:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:14,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-20 03:05:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:14,193 INFO L225 Difference]: With dead ends: 50 [2020-10-20 03:05:14,193 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:05:14,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:05:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:05:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:05:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:05:14,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-20 03:05:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:14,195 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:05:14,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:05:14,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:05:14,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:05:14,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:05:14 BasicIcfg [2020-10-20 03:05:14,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:05:14,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:05:14,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:05:14,202 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:05:14,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:09" (3/4) ... [2020-10-20 03:05:14,206 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:05:14,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:05:14,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:05:14,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:05:14,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-20 03:05:14,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-20 03:05:14,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:05:14,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:05:14,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:05:14,268 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:05:14,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:05:14,270 INFO L168 Benchmark]: Toolchain (without parser) took 5812.74 ms. Allocated memory was 42.5 MB in the beginning and 77.1 MB in the end (delta: 34.6 MB). Free memory was 20.9 MB in the beginning and 14.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,270 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.83 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 20.0 MB in the beginning and 17.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.38 ms. Allocated memory is still 44.6 MB. Free memory was 17.0 MB in the beginning and 15.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,272 INFO L168 Benchmark]: Boogie Preprocessor took 29.63 ms. Allocated memory is still 44.6 MB. Free memory was 15.0 MB in the beginning and 13.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,273 INFO L168 Benchmark]: RCFGBuilder took 472.17 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 13.3 MB in the beginning and 27.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,274 INFO L168 Benchmark]: TraceAbstraction took 4539.25 ms. Allocated memory was 47.7 MB in the beginning and 77.1 MB in the end (delta: 29.4 MB). Free memory was 27.4 MB in the beginning and 18.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,275 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 77.1 MB. Free memory was 18.5 MB in the beginning and 14.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:14,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 643.83 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 20.0 MB in the beginning and 17.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.38 ms. Allocated memory is still 44.6 MB. Free memory was 17.0 MB in the beginning and 15.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.63 ms. Allocated memory is still 44.6 MB. Free memory was 15.0 MB in the beginning and 13.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 472.17 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 13.3 MB in the beginning and 27.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4539.25 ms. Allocated memory was 47.7 MB in the beginning and 77.1 MB in the end (delta: 29.4 MB). Free memory was 27.4 MB in the beginning and 18.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.3 GB. * Witness Printer took 66.29 ms. Allocated memory is still 77.1 MB. Free memory was 18.5 MB in the beginning and 14.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 222 SDtfs, 227 SDslu, 318 SDs, 0 SdLazy, 183 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 5404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...