./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.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/safe002_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9839125b5a4d74faffc5f8180766feb54b289091 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:02:54,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:02:54,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:02:54,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:02:54,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:02:54,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:02:54,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:02:54,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:02:54,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:02:54,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:02:54,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:02:54,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:02:54,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:02:54,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:02:54,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:02:54,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:02:54,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:02:54,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:02:54,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:02:54,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:02:54,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:02:54,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:02:54,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:02:54,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:02:54,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:02:54,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:02:54,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:02:54,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:02:54,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:02:54,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:02:54,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:02:54,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:02:54,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:02:54,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:02:54,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:02:54,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:02:54,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:02:54,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:02:54,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:02:54,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:02:54,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:02:54,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:02:54,380 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:02:54,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:02:54,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:02:54,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:02:54,382 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:02:54,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:02:54,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:02:54,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:02:54,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:02:54,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:02:54,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:02:54,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:02:54,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:02:54,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:02:54,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:02:54,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:02:54,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:02:54,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:02:54,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:02:54,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:02:54,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:02:54,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:02:54,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:02:54,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:02:54,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:02:54,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:02:54,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:02:54,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:02:54,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:02:54,389 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 -> 9839125b5a4d74faffc5f8180766feb54b289091 [2020-10-20 03:02:54,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:02:54,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:02:54,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:02:54,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:02:54,631 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:02:54,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.opt.i [2020-10-20 03:02:54,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51540a19/5c5035fb32894d0a8e6f6a4a550d7feb/FLAG3cb8be67f [2020-10-20 03:02:55,395 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:02:55,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.opt.i [2020-10-20 03:02:55,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51540a19/5c5035fb32894d0a8e6f6a4a550d7feb/FLAG3cb8be67f [2020-10-20 03:02:55,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51540a19/5c5035fb32894d0a8e6f6a4a550d7feb [2020-10-20 03:02:55,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:02:55,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:02:55,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:02:55,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:02:55,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:02:55,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:02:55" (1/1) ... [2020-10-20 03:02:55,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a3654c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:55, skipping insertion in model container [2020-10-20 03:02:55,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:02:55" (1/1) ... [2020-10-20 03:02:55,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:02:55,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:02:56,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:02:56,216 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:02:56,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:02:56,370 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:02:56,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56 WrapperNode [2020-10-20 03:02:56,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:02:56,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:02:56,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:02:56,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:02:56,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:02:56,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:02:56,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:02:56,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:02:56,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (1/1) ... [2020-10-20 03:02:56,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:02:56,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:02:56,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:02:56,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:02:56,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (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 03:02:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:02:56,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:02:56,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:02:56,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:02:56,549 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:02:56,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:02:56,549 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:02:56,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:02:56,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:02:56,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:02:56,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:02:56,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:02:56,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:02:56,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:02:56,553 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 03:02:57,000 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:02:57,004 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:02:57,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:02:57 BoogieIcfgContainer [2020-10-20 03:02:57,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:02:57,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:02:57,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:02:57,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:02:57,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:02:55" (1/3) ... [2020-10-20 03:02:57,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6feb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:02:57, skipping insertion in model container [2020-10-20 03:02:57,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:02:56" (2/3) ... [2020-10-20 03:02:57,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6feb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:02:57, skipping insertion in model container [2020-10-20 03:02:57,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:02:57" (3/3) ... [2020-10-20 03:02:57,016 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-10-20 03:02:57,028 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:02:57,029 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:02:57,037 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:02:57,038 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:02:57,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,067 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,093 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,094 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:02:57,099 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:02:57,113 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:02:57,136 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:02:57,136 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:02:57,136 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:02:57,137 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:02:57,137 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:02:57,137 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:02:57,137 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:02:57,137 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:02:57,152 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:02:57,155 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-20 03:02:57,158 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-20 03:02:57,160 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-20 03:02:57,219 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-20 03:02:57,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:02:57,225 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:02:57,228 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:02:59,199 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-20 03:02:59,305 INFO L132 LiptonReduction]: Checked pairs total: 2779 [2020-10-20 03:02:59,306 INFO L134 LiptonReduction]: Total number of compositions: 70 [2020-10-20 03:02:59,313 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-20 03:02:59,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-20 03:02:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-20 03:02:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:02:59,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:02:59,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:02:59,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:02:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:02:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-20 03:02:59,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:02:59,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054832650] [2020-10-20 03:02:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:02:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:02:59,552 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 03:02:59,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054832650] [2020-10-20 03:02:59,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:02:59,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:02:59,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777811642] [2020-10-20 03:02:59,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:02:59,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:02:59,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:02:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:02:59,588 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-20 03:02:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:02:59,644 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-20 03:02:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:02:59,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 03:02:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:02:59,664 INFO L225 Difference]: With dead ends: 362 [2020-10-20 03:02:59,664 INFO L226 Difference]: Without dead ends: 298 [2020-10-20 03:02:59,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:02:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-20 03:02:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-20 03:02:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-20 03:02:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-20 03:02:59,743 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-20 03:02:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:02:59,744 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-20 03:02:59,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:02:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-20 03:02:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:02:59,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:02:59,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:02:59,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:02:59,747 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:02:59,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:02:59,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-20 03:02:59,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:02:59,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23054112] [2020-10-20 03:02:59,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:02:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:02:59,946 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 03:02:59,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23054112] [2020-10-20 03:02:59,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:02:59,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:02:59,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028150456] [2020-10-20 03:02:59,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:02:59,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:02:59,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:02:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:02:59,950 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-20 03:02:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:02:59,982 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-20 03:02:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:02:59,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 03:02:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:02:59,986 INFO L225 Difference]: With dead ends: 330 [2020-10-20 03:02:59,986 INFO L226 Difference]: Without dead ends: 266 [2020-10-20 03:02:59,987 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 03:02:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-20 03:03:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-20 03:03:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-20 03:03:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-20 03:03:00,010 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-20 03:03:00,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,010 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-20 03:03:00,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:03:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-20 03:03:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:03:00,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:03:00,018 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,019 INFO L82 PathProgramCache]: Analyzing trace with hash 9178769, now seen corresponding path program 1 times [2020-10-20 03:03:00,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739970507] [2020-10-20 03:03:00,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,256 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 03:03:00,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739970507] [2020-10-20 03:03:00,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:03:00,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560601319] [2020-10-20 03:03:00,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:03:00,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:03:00,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:03:00,259 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-10-20 03:03:00,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,374 INFO L93 Difference]: Finished difference Result 338 states and 914 transitions. [2020-10-20 03:03:00,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 03:03:00,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 03:03:00,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,377 INFO L225 Difference]: With dead ends: 338 [2020-10-20 03:03:00,377 INFO L226 Difference]: Without dead ends: 194 [2020-10-20 03:03:00,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:03:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-20 03:03:00,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-20 03:03:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-20 03:03:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 494 transitions. [2020-10-20 03:03:00,390 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 494 transitions. Word has length 10 [2020-10-20 03:03:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,391 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 494 transitions. [2020-10-20 03:03:00,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:03:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 494 transitions. [2020-10-20 03:03:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:03:00,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:03:00,393 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash 150494398, now seen corresponding path program 1 times [2020-10-20 03:03:00,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311185109] [2020-10-20 03:03:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,483 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 03:03:00,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311185109] [2020-10-20 03:03:00,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:03:00,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703373792] [2020-10-20 03:03:00,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:03:00,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:03:00,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:03:00,486 INFO L87 Difference]: Start difference. First operand 194 states and 494 transitions. Second operand 4 states. [2020-10-20 03:03:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,503 INFO L93 Difference]: Finished difference Result 206 states and 508 transitions. [2020-10-20 03:03:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:03:00,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:03:00,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,505 INFO L225 Difference]: With dead ends: 206 [2020-10-20 03:03:00,505 INFO L226 Difference]: Without dead ends: 182 [2020-10-20 03:03:00,506 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 03:03:00,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-20 03:03:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-20 03:03:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-20 03:03:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 456 transitions. [2020-10-20 03:03:00,528 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 456 transitions. Word has length 12 [2020-10-20 03:03:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,528 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 456 transitions. [2020-10-20 03:03:00,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:03:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 456 transitions. [2020-10-20 03:03:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:03:00,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:03:00,530 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,531 INFO L82 PathProgramCache]: Analyzing trace with hash -10402391, now seen corresponding path program 1 times [2020-10-20 03:03:00,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726077373] [2020-10-20 03:03:00,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,588 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 03:03:00,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726077373] [2020-10-20 03:03:00,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:03:00,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090135029] [2020-10-20 03:03:00,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:03:00,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:03:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:03:00,591 INFO L87 Difference]: Start difference. First operand 182 states and 456 transitions. Second operand 5 states. [2020-10-20 03:03:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,640 INFO L93 Difference]: Finished difference Result 194 states and 473 transitions. [2020-10-20 03:03:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:03:00,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:03:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,642 INFO L225 Difference]: With dead ends: 194 [2020-10-20 03:03:00,643 INFO L226 Difference]: Without dead ends: 158 [2020-10-20 03:03:00,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:03:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-20 03:03:00,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-20 03:03:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-20 03:03:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 394 transitions. [2020-10-20 03:03:00,650 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 394 transitions. Word has length 13 [2020-10-20 03:03:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,650 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 394 transitions. [2020-10-20 03:03:00,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:03:00,650 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 394 transitions. [2020-10-20 03:03:00,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:03:00,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:03:00,653 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1736979236, now seen corresponding path program 1 times [2020-10-20 03:03:00,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212448705] [2020-10-20 03:03:00,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,711 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 03:03:00,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212448705] [2020-10-20 03:03:00,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:03:00,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164791643] [2020-10-20 03:03:00,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:03:00,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:03:00,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:03:00,714 INFO L87 Difference]: Start difference. First operand 158 states and 394 transitions. Second operand 5 states. [2020-10-20 03:03:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,749 INFO L93 Difference]: Finished difference Result 236 states and 587 transitions. [2020-10-20 03:03:00,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:03:00,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:03:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,751 INFO L225 Difference]: With dead ends: 236 [2020-10-20 03:03:00,751 INFO L226 Difference]: Without dead ends: 128 [2020-10-20 03:03:00,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:03:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-20 03:03:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-20 03:03:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-20 03:03:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 316 transitions. [2020-10-20 03:03:00,758 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 316 transitions. Word has length 13 [2020-10-20 03:03:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,759 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 316 transitions. [2020-10-20 03:03:00,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:03:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 316 transitions. [2020-10-20 03:03:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:03:00,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:03:00,760 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1184784502, now seen corresponding path program 2 times [2020-10-20 03:03:00,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488683215] [2020-10-20 03:03:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,823 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 03:03:00,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488683215] [2020-10-20 03:03:00,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:03:00,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180436017] [2020-10-20 03:03:00,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:03:00,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:03:00,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:03:00,826 INFO L87 Difference]: Start difference. First operand 128 states and 316 transitions. Second operand 5 states. [2020-10-20 03:03:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,876 INFO L93 Difference]: Finished difference Result 158 states and 381 transitions. [2020-10-20 03:03:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:03:00,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:03:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,877 INFO L225 Difference]: With dead ends: 158 [2020-10-20 03:03:00,878 INFO L226 Difference]: Without dead ends: 80 [2020-10-20 03:03:00,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:03:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-20 03:03:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-20 03:03:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-20 03:03:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-10-20 03:03:00,882 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-10-20 03:03:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,883 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-10-20 03:03:00,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:03:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-10-20 03:03:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 03:03:00,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:03:00,884 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 1 times [2020-10-20 03:03:00,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887078638] [2020-10-20 03:03:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:00,937 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 03:03:00,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887078638] [2020-10-20 03:03:00,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:00,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:03:00,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729366321] [2020-10-20 03:03:00,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:03:00,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:00,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:03:00,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:03:00,939 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states. [2020-10-20 03:03:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:00,965 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-10-20 03:03:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:03:00,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-20 03:03:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:00,967 INFO L225 Difference]: With dead ends: 91 [2020-10-20 03:03:00,967 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 03:03:00,968 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 03:03:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 03:03:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 03:03:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 03:03:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-10-20 03:03:00,971 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-10-20 03:03:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:00,972 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-10-20 03:03:00,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:03:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-10-20 03:03:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:03:00,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:00,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:00,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:03:00,973 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:00,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:00,973 INFO L82 PathProgramCache]: Analyzing trace with hash -27259733, now seen corresponding path program 1 times [2020-10-20 03:03:00,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:00,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804552317] [2020-10-20 03:03:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:01,028 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 03:03:01,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804552317] [2020-10-20 03:03:01,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:01,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:03:01,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455273576] [2020-10-20 03:03:01,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:03:01,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:01,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:03:01,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:03:01,034 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states. [2020-10-20 03:03:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:01,077 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-10-20 03:03:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:03:01,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 03:03:01,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:01,079 INFO L225 Difference]: With dead ends: 65 [2020-10-20 03:03:01,079 INFO L226 Difference]: Without dead ends: 50 [2020-10-20 03:03:01,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:03:01,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-20 03:03:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-20 03:03:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 03:03:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-10-20 03:03:01,090 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-10-20 03:03:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:01,090 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-10-20 03:03:01,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:03:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-10-20 03:03:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:03:01,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:01,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:03:01,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:03:01,091 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:01,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-10-20 03:03:01,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:01,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50661064] [2020-10-20 03:03:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:01,150 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 03:03:01,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50661064] [2020-10-20 03:03:01,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:01,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 03:03:01,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313618382] [2020-10-20 03:03:01,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:03:01,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:01,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:03:01,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:03:01,153 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states. [2020-10-20 03:03:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:01,204 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-10-20 03:03:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:03:01,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-20 03:03:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:01,205 INFO L225 Difference]: With dead ends: 43 [2020-10-20 03:03:01,205 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 03:03:01,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-20 03:03:01,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 03:03:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 03:03:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 03:03:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-20 03:03:01,208 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-10-20 03:03:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:01,208 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-20 03:03:01,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:03:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-20 03:03:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:03:01,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:03:01,209 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 03:03:01,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:03:01,209 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:03:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:03:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-10-20 03:03:01,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:03:01,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660611670] [2020-10-20 03:03:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:03:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:03:01,262 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 03:03:01,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660611670] [2020-10-20 03:03:01,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:03:01,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:03:01,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330326616] [2020-10-20 03:03:01,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:03:01,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:03:01,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:03:01,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:03:01,264 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-20 03:03:01,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:03:01,285 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-20 03:03:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:03:01,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-20 03:03:01,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:03:01,286 INFO L225 Difference]: With dead ends: 36 [2020-10-20 03:03:01,286 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:03:01,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:03:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:03:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:03:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:03:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:03:01,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-20 03:03:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:03:01,288 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:03:01,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:03:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:03:01,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:03:01,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 03:03:01,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:03:01 BasicIcfg [2020-10-20 03:03:01,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:03:01,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:03:01,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:03:01,294 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:03:01,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:02:57" (3/4) ... [2020-10-20 03:03:01,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:03:01,307 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:03:01,307 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:03:01,307 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:03:01,314 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:03:01,314 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:03:01,315 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:03:01,315 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:03:01,369 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:03:01,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:03:01,372 INFO L168 Benchmark]: Toolchain (without parser) took 5635.05 ms. Allocated memory was 40.4 MB in the beginning and 79.7 MB in the end (delta: 39.3 MB). Free memory was 22.2 MB in the beginning and 21.8 MB in the end (delta: 428.1 kB). Peak memory consumption was 39.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,372 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 29.9 MB. Free memory was 15.6 MB in the beginning and 15.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.22 ms. Allocated memory was 40.4 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 19.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 42.5 MB. Free memory was 19.0 MB in the beginning and 16.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,375 INFO L168 Benchmark]: Boogie Preprocessor took 28.25 ms. Allocated memory is still 42.5 MB. Free memory was 16.8 MB in the beginning and 15.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,375 INFO L168 Benchmark]: RCFGBuilder took 545.26 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 15.1 MB in the beginning and 24.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,376 INFO L168 Benchmark]: TraceAbstraction took 4284.26 ms. Allocated memory was 44.6 MB in the beginning and 79.7 MB in the end (delta: 35.1 MB). Free memory was 23.7 MB in the beginning and 25.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,378 INFO L168 Benchmark]: Witness Printer took 76.44 ms. Allocated memory is still 79.7 MB. Free memory was 25.9 MB in the beginning and 21.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:03:01,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 29.9 MB. Free memory was 15.6 MB in the beginning and 15.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 628.22 ms. Allocated memory was 40.4 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 19.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 42.5 MB. Free memory was 19.0 MB in the beginning and 16.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 28.25 ms. Allocated memory is still 42.5 MB. Free memory was 16.8 MB in the beginning and 15.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 545.26 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 15.1 MB in the beginning and 24.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4284.26 ms. Allocated memory was 44.6 MB in the beginning and 79.7 MB in the end (delta: 35.1 MB). Free memory was 23.7 MB in the beginning and 25.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.3 GB. * Witness Printer took 76.44 ms. Allocated memory is still 79.7 MB. Free memory was 25.9 MB in the beginning and 21.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 955 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 217 SDtfs, 271 SDslu, 336 SDs, 0 SdLazy, 155 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...