./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/safe015_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f516a433255df743a468b7b0ed351449824c19a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 21:35:39,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:35:39,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:35:39,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:35:39,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:35:39,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:35:39,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:35:39,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:35:39,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:35:39,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:35:39,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:35:39,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:35:39,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:35:39,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:35:39,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:35:39,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:35:39,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:35:39,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:35:39,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:35:39,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:35:39,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:35:39,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:35:39,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:35:39,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:35:39,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:35:39,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:35:39,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:35:39,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:35:39,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:35:39,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:35:39,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:35:39,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:35:39,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:35:39,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:35:39,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:35:39,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:35:39,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:35:39,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:35:39,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:35:39,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:35:39,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:35:39,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:35:39,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:35:39,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:35:39,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:35:39,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:35:39,355 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:35:39,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:35:39,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:35:39,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:35:39,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:35:39,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:35:39,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:35:39,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:35:39,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:35:39,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:35:39,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:35:39,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:35:39,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:35:39,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:35:39,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:35:39,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:35:39,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:35:39,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:35:39,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:35:39,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:35:39,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:35:39,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:35:39,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:35:39,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:35:39,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:35:39,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f516a433255df743a468b7b0ed351449824c19a [2020-07-28 21:35:39,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:35:39,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:35:39,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:35:39,690 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:35:39,690 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:35:39,691 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i [2020-07-28 21:35:39,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07c50377/9c6084df12aa4f3783260e44ea28fbe1/FLAGec49ffd3d [2020-07-28 21:35:40,251 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:35:40,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i [2020-07-28 21:35:40,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07c50377/9c6084df12aa4f3783260e44ea28fbe1/FLAGec49ffd3d [2020-07-28 21:35:40,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07c50377/9c6084df12aa4f3783260e44ea28fbe1 [2020-07-28 21:35:40,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:35:40,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:35:40,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:40,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:35:40,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:35:40,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:40" (1/1) ... [2020-07-28 21:35:40,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472db69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:40, skipping insertion in model container [2020-07-28 21:35:40,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:40" (1/1) ... [2020-07-28 21:35:40,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:35:40,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:35:41,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:41,195 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:35:41,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:41,341 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:35:41,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41 WrapperNode [2020-07-28 21:35:41,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:41,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:41,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:35:41,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:35:41,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:41,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:35:41,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:35:41,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:35:41,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... [2020-07-28 21:35:41,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:35:41,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:35:41,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:35:41,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:35:41,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:35:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:35:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:35:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:35:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:35:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:35:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:35:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:35:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:35:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:35:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:35:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:35:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:35:41,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:35:41,518 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-07-28 21:35:41,997 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:35:41,998 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:35:42,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:42 BoogieIcfgContainer [2020-07-28 21:35:42,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:35:42,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:35:42,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:35:42,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:35:42,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:35:40" (1/3) ... [2020-07-28 21:35:42,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b20d23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:42, skipping insertion in model container [2020-07-28 21:35:42,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:41" (2/3) ... [2020-07-28 21:35:42,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b20d23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:42, skipping insertion in model container [2020-07-28 21:35:42,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:42" (3/3) ... [2020-07-28 21:35:42,013 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-07-28 21:35:42,025 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:35:42,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:35:42,035 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:35:42,036 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:35:42,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,095 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:42,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:35:42,142 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:35:42,142 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:35:42,142 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:35:42,142 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:35:42,143 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:35:42,143 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:35:42,143 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:35:42,143 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:35:42,160 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:42,163 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:42,208 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:42,208 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:42,213 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:42,217 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:42,241 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:42,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:42,244 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:42,246 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:35:42,248 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:35:45,131 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-07-28 21:35:45,132 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:35:45,135 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:35:45,161 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:35:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:35:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:35:45,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:45,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:45,173 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:45,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-07-28 21:35:45,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:45,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841608879] [2020-07-28 21:35:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:45,405 INFO L280 TraceCheckUtils]: 0: Hoare triple {676#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {678#(= 0 ~x~0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,408 INFO L280 TraceCheckUtils]: 2: Hoare triple {678#(= 0 ~x~0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,409 INFO L280 TraceCheckUtils]: 3: Hoare triple {678#(= 0 ~x~0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,410 INFO L280 TraceCheckUtils]: 4: Hoare triple {678#(= 0 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,411 INFO L280 TraceCheckUtils]: 5: Hoare triple {678#(= 0 ~x~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,412 INFO L280 TraceCheckUtils]: 6: Hoare triple {678#(= 0 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:45,414 INFO L280 TraceCheckUtils]: 7: Hoare triple {678#(= 0 ~x~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {677#false} is VALID [2020-07-28 21:35:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:45,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841608879] [2020-07-28 21:35:45,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:45,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:45,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812236231] [2020-07-28 21:35:45,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:45,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:45,432 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:45,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:45,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:45,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:45,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:45,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:45,473 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:35:45,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:45,617 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:35:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:45,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:35:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:35:45,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 31 transitions. [2020-07-28 21:35:45,671 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:45,702 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:35:45,703 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:35:45,704 INFO L675 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 [2020-07-28 21:35:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:35:45,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:35:45,811 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:45,812 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:45,812 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:45,812 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:45,833 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:45,834 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:45,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:45,837 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:45,837 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:45,837 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:45,857 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:45,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:45,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:45,859 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:45,859 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:35:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:35:45,878 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:35:45,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:45,879 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:35:45,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:45,879 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:35:45,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:45,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:45,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:35:45,881 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-07-28 21:35:45,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:45,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810923925] [2020-07-28 21:35:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:45,994 INFO L280 TraceCheckUtils]: 0: Hoare triple {1835#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {1835#true} is VALID [2020-07-28 21:35:45,994 INFO L280 TraceCheckUtils]: 1: Hoare triple {1835#true} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1835#true} is VALID [2020-07-28 21:35:45,995 INFO L280 TraceCheckUtils]: 2: Hoare triple {1835#true} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {1835#true} is VALID [2020-07-28 21:35:45,995 INFO L280 TraceCheckUtils]: 3: Hoare triple {1835#true} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1835#true} is VALID [2020-07-28 21:35:45,997 INFO L280 TraceCheckUtils]: 4: Hoare triple {1835#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:45,998 INFO L280 TraceCheckUtils]: 5: Hoare triple {1837#(= 1 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:45,999 INFO L280 TraceCheckUtils]: 6: Hoare triple {1837#(= 1 ~x~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:46,000 INFO L280 TraceCheckUtils]: 7: Hoare triple {1837#(= 1 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:46,001 INFO L280 TraceCheckUtils]: 8: Hoare triple {1837#(= 1 ~x~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1836#false} is VALID [2020-07-28 21:35:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:46,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810923925] [2020-07-28 21:35:46,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:46,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:46,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614226946] [2020-07-28 21:35:46,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:35:46,005 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:46,005 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:46,022 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:46,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:46,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:46,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:46,023 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-07-28 21:35:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,084 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:46,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:35:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:35:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:35:46,087 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:35:46,123 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,129 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:35:46,129 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:35:46,130 INFO L675 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 [2020-07-28 21:35:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:35:46,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:35:46,198 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:46,198 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:46,198 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:46,199 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,210 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:46,211 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:46,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,212 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:46,212 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:46,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,224 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:46,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,226 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:46,226 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:35:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:35:46,238 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-07-28 21:35:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:46,238 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:35:46,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:35:46,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:46,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:46,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:35:46,240 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:46,240 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-07-28 21:35:46,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:46,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094477568] [2020-07-28 21:35:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:46,307 INFO L280 TraceCheckUtils]: 0: Hoare triple {2850#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,309 INFO L280 TraceCheckUtils]: 2: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,310 INFO L280 TraceCheckUtils]: 3: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,310 INFO L280 TraceCheckUtils]: 4: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,311 INFO L280 TraceCheckUtils]: 5: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,312 INFO L280 TraceCheckUtils]: 6: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,313 INFO L280 TraceCheckUtils]: 7: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,314 INFO L280 TraceCheckUtils]: 8: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:46,315 INFO L280 TraceCheckUtils]: 9: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2851#false} is VALID [2020-07-28 21:35:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:46,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094477568] [2020-07-28 21:35:46,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:46,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:46,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052528664] [2020-07-28 21:35:46,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:35:46,317 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:46,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:46,334 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:46,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:46,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:46,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:46,337 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:35:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,376 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:46,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:35:46,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:35:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:35:46,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:35:46,410 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,415 INFO L225 Difference]: With dead ends: 194 [2020-07-28 21:35:46,416 INFO L226 Difference]: Without dead ends: 194 [2020-07-28 21:35:46,416 INFO L675 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 [2020-07-28 21:35:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-07-28 21:35:46,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-07-28 21:35:46,476 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:46,477 INFO L82 GeneralOperation]: Start isEquivalent. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:46,477 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:46,477 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,487 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:46,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,489 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,489 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:46,489 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:46,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,500 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:46,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,501 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:46,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-28 21:35:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-07-28 21:35:46,511 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-07-28 21:35:46,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:46,512 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-07-28 21:35:46,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:35:46,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:46,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:46,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:35:46,513 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:46,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1558339042, now seen corresponding path program 1 times [2020-07-28 21:35:46,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:46,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305014080] [2020-07-28 21:35:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:46,596 INFO L280 TraceCheckUtils]: 0: Hoare triple {3825#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,597 INFO L280 TraceCheckUtils]: 1: Hoare triple {3827#(= 0 ~y~0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,598 INFO L280 TraceCheckUtils]: 2: Hoare triple {3827#(= 0 ~y~0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,599 INFO L280 TraceCheckUtils]: 3: Hoare triple {3827#(= 0 ~y~0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,599 INFO L280 TraceCheckUtils]: 4: Hoare triple {3827#(= 0 ~y~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,600 INFO L280 TraceCheckUtils]: 5: Hoare triple {3827#(= 0 ~y~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,601 INFO L280 TraceCheckUtils]: 6: Hoare triple {3827#(= 0 ~y~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,601 INFO L280 TraceCheckUtils]: 7: Hoare triple {3827#(= 0 ~y~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,604 INFO L280 TraceCheckUtils]: 8: Hoare triple {3827#(= 0 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,605 INFO L280 TraceCheckUtils]: 9: Hoare triple {3827#(= 0 ~y~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:46,606 INFO L280 TraceCheckUtils]: 10: Hoare triple {3827#(= 0 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3826#false} is VALID [2020-07-28 21:35:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:46,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305014080] [2020-07-28 21:35:46,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:46,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:46,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849125874] [2020-07-28 21:35:46,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:46,610 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:46,610 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:46,625 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:46,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:46,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:46,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:46,626 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 3 states. [2020-07-28 21:35:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,669 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:46,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:46,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:46,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:35:46,709 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:46,713 INFO L225 Difference]: With dead ends: 192 [2020-07-28 21:35:46,713 INFO L226 Difference]: Without dead ends: 192 [2020-07-28 21:35:46,714 INFO L675 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 [2020-07-28 21:35:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-28 21:35:46,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:46,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-28 21:35:46,769 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:46,769 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:46,769 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:46,770 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,779 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:46,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,780 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,780 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:46,780 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:46,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:46,789 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:46,790 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:46,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:46,790 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:46,791 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:46,791 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:46,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-28 21:35:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-07-28 21:35:46,798 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-07-28 21:35:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:46,799 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-07-28 21:35:46,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:35:46,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:46,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:46,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:35:46,800 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:46,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-07-28 21:35:46,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:46,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553051767] [2020-07-28 21:35:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:46,958 INFO L280 TraceCheckUtils]: 0: Hoare triple {4790#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,959 INFO L280 TraceCheckUtils]: 1: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,960 INFO L280 TraceCheckUtils]: 2: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,961 INFO L280 TraceCheckUtils]: 3: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,961 INFO L280 TraceCheckUtils]: 4: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,962 INFO L280 TraceCheckUtils]: 5: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,963 INFO L280 TraceCheckUtils]: 6: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,963 INFO L280 TraceCheckUtils]: 7: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,964 INFO L280 TraceCheckUtils]: 8: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:46,965 INFO L280 TraceCheckUtils]: 9: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:46,966 INFO L280 TraceCheckUtils]: 10: Hoare triple {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:46,967 INFO L280 TraceCheckUtils]: 11: Hoare triple {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4791#false} is VALID [2020-07-28 21:35:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:46,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553051767] [2020-07-28 21:35:46,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:46,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:46,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051188302] [2020-07-28 21:35:46,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:46,970 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:46,970 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:47,012 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:47,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:47,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:47,013 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-07-28 21:35:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,160 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-07-28 21:35:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:47,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:47,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:47,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:35:47,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,240 INFO L225 Difference]: With dead ends: 224 [2020-07-28 21:35:47,240 INFO L226 Difference]: Without dead ends: 160 [2020-07-28 21:35:47,241 INFO L675 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 [2020-07-28 21:35:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-28 21:35:47,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-28 21:35:47,276 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:47,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:47,277 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:47,277 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:47,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,281 INFO L93 Difference]: Finished difference Result 160 states and 383 transitions. [2020-07-28 21:35:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:47,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,282 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,282 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:47,283 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,287 INFO L93 Difference]: Finished difference Result 160 states and 383 transitions. [2020-07-28 21:35:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:47,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,288 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,288 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:47,288 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-28 21:35:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-07-28 21:35:47,293 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-07-28 21:35:47,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:47,293 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-07-28 21:35:47,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:35:47,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:47,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:47,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:35:47,295 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:47,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:47,295 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-07-28 21:35:47,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:47,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877269048] [2020-07-28 21:35:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:47,388 INFO L280 TraceCheckUtils]: 0: Hoare triple {5662#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,389 INFO L280 TraceCheckUtils]: 1: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,390 INFO L280 TraceCheckUtils]: 2: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,391 INFO L280 TraceCheckUtils]: 3: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,392 INFO L280 TraceCheckUtils]: 4: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,393 INFO L280 TraceCheckUtils]: 5: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:47,397 INFO L280 TraceCheckUtils]: 6: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:47,398 INFO L280 TraceCheckUtils]: 7: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:47,399 INFO L280 TraceCheckUtils]: 8: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:47,400 INFO L280 TraceCheckUtils]: 9: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:47,401 INFO L280 TraceCheckUtils]: 10: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:47,402 INFO L280 TraceCheckUtils]: 11: Hoare triple {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:47,404 INFO L280 TraceCheckUtils]: 12: Hoare triple {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5663#false} is VALID [2020-07-28 21:35:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:47,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877269048] [2020-07-28 21:35:47,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:47,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:47,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013408696] [2020-07-28 21:35:47,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:47,406 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:47,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:35:47,426 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:35:47,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:47,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:35:47,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:35:47,427 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-07-28 21:35:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,579 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-07-28 21:35:47,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:35:47,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:35:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:35:47,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 62 transitions. [2020-07-28 21:35:47,665 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,668 INFO L225 Difference]: With dead ends: 160 [2020-07-28 21:35:47,668 INFO L226 Difference]: Without dead ends: 123 [2020-07-28 21:35:47,668 INFO L675 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 [2020-07-28 21:35:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-28 21:35:47,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-28 21:35:47,696 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:47,696 INFO L82 GeneralOperation]: Start isEquivalent. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:47,696 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:47,696 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,699 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:35:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:47,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,700 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,700 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:47,700 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:47,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,704 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:35:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:47,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,705 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:47,705 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-28 21:35:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-07-28 21:35:47,708 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-07-28 21:35:47,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:47,708 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-07-28 21:35:47,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:35:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:35:47,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:47,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:47,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:35:47,709 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:47,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-07-28 21:35:47,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:47,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991574544] [2020-07-28 21:35:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:47,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {6323#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {6323#true} is VALID [2020-07-28 21:35:47,749 INFO L280 TraceCheckUtils]: 1: Hoare triple {6323#true} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6323#true} is VALID [2020-07-28 21:35:47,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {6323#true} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {6323#true} is VALID [2020-07-28 21:35:47,750 INFO L280 TraceCheckUtils]: 3: Hoare triple {6323#true} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {6323#true} is VALID [2020-07-28 21:35:47,750 INFO L280 TraceCheckUtils]: 4: Hoare triple {6323#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6323#true} is VALID [2020-07-28 21:35:47,750 INFO L280 TraceCheckUtils]: 5: Hoare triple {6323#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6323#true} is VALID [2020-07-28 21:35:47,750 INFO L280 TraceCheckUtils]: 6: Hoare triple {6323#true} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6323#true} is VALID [2020-07-28 21:35:47,751 INFO L280 TraceCheckUtils]: 7: Hoare triple {6323#true} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {6323#true} is VALID [2020-07-28 21:35:47,751 INFO L280 TraceCheckUtils]: 8: Hoare triple {6323#true} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {6323#true} is VALID [2020-07-28 21:35:47,751 INFO L280 TraceCheckUtils]: 9: Hoare triple {6323#true} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6323#true} is VALID [2020-07-28 21:35:47,752 INFO L280 TraceCheckUtils]: 10: Hoare triple {6323#true} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:47,753 INFO L280 TraceCheckUtils]: 11: Hoare triple {6325#(= 1 ~y~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:47,754 INFO L280 TraceCheckUtils]: 12: Hoare triple {6325#(= 1 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:47,755 INFO L280 TraceCheckUtils]: 13: Hoare triple {6325#(= 1 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6324#false} is VALID [2020-07-28 21:35:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:47,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991574544] [2020-07-28 21:35:47,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:47,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:47,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120756472] [2020-07-28 21:35:47,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:47,758 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:47,758 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:47,780 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:47,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:47,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:47,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:47,781 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-07-28 21:35:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,826 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-07-28 21:35:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:47,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:47,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 21:35:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 21:35:47,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 26 transitions. [2020-07-28 21:35:47,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,879 INFO L225 Difference]: With dead ends: 155 [2020-07-28 21:35:47,879 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:35:47,879 INFO L675 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 [2020-07-28 21:35:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:35:47,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-07-28 21:35:47,916 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:47,916 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:47,916 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:47,916 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,919 INFO L93 Difference]: Finished difference Result 124 states and 258 transitions. [2020-07-28 21:35:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 258 transitions. [2020-07-28 21:35:47,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,920 INFO L74 IsIncluded]: Start isIncluded. First operand 122 states. Second operand 124 states. [2020-07-28 21:35:47,921 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 124 states. [2020-07-28 21:35:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,923 INFO L93 Difference]: Finished difference Result 124 states and 258 transitions. [2020-07-28 21:35:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 258 transitions. [2020-07-28 21:35:47,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:47,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-28 21:35:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-07-28 21:35:47,927 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-07-28 21:35:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:47,928 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-07-28 21:35:47,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:47,928 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-07-28 21:35:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:47,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:47,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:47,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:35:47,929 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-07-28 21:35:47,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:47,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034050354] [2020-07-28 21:35:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:47,975 INFO L280 TraceCheckUtils]: 0: Hoare triple {6975#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {6975#true} is VALID [2020-07-28 21:35:47,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {6975#true} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6975#true} is VALID [2020-07-28 21:35:47,976 INFO L280 TraceCheckUtils]: 2: Hoare triple {6975#true} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {6975#true} is VALID [2020-07-28 21:35:47,976 INFO L280 TraceCheckUtils]: 3: Hoare triple {6975#true} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {6975#true} is VALID [2020-07-28 21:35:47,976 INFO L280 TraceCheckUtils]: 4: Hoare triple {6975#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6975#true} is VALID [2020-07-28 21:35:47,977 INFO L280 TraceCheckUtils]: 5: Hoare triple {6975#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:47,978 INFO L280 TraceCheckUtils]: 6: Hoare triple {6977#(<= 2 ~x~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:47,979 INFO L280 TraceCheckUtils]: 7: Hoare triple {6977#(<= 2 ~x~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:47,980 INFO L280 TraceCheckUtils]: 8: Hoare triple {6977#(<= 2 ~x~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,980 INFO L280 TraceCheckUtils]: 9: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,981 INFO L280 TraceCheckUtils]: 10: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,982 INFO L280 TraceCheckUtils]: 11: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,982 INFO L280 TraceCheckUtils]: 12: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,983 INFO L280 TraceCheckUtils]: 13: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:47,984 INFO L280 TraceCheckUtils]: 14: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6976#false} is VALID [2020-07-28 21:35:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:47,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034050354] [2020-07-28 21:35:47,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:47,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:47,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518623172] [2020-07-28 21:35:47,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:47,986 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:47,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:48,005 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:48,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:48,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:48,006 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-07-28 21:35:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,087 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-07-28 21:35:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:48,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:35:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:35:48,089 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2020-07-28 21:35:48,132 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,134 INFO L225 Difference]: With dead ends: 154 [2020-07-28 21:35:48,135 INFO L226 Difference]: Without dead ends: 116 [2020-07-28 21:35:48,135 INFO L675 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 [2020-07-28 21:35:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-07-28 21:35:48,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-07-28 21:35:48,170 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,170 INFO L82 GeneralOperation]: Start isEquivalent. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:48,170 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:48,171 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,173 INFO L93 Difference]: Finished difference Result 116 states and 223 transitions. [2020-07-28 21:35:48,174 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 223 transitions. [2020-07-28 21:35:48,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,174 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 116 states. [2020-07-28 21:35:48,175 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 116 states. [2020-07-28 21:35:48,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,177 INFO L93 Difference]: Finished difference Result 116 states and 223 transitions. [2020-07-28 21:35:48,178 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 223 transitions. [2020-07-28 21:35:48,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,178 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,178 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,179 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-28 21:35:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-07-28 21:35:48,182 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-07-28 21:35:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,182 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-07-28 21:35:48,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:48,183 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-07-28 21:35:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:48,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:35:48,184 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,185 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-07-28 21:35:48,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062714215] [2020-07-28 21:35:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,319 INFO L280 TraceCheckUtils]: 0: Hoare triple {7597#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,320 INFO L280 TraceCheckUtils]: 1: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,321 INFO L280 TraceCheckUtils]: 2: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,322 INFO L280 TraceCheckUtils]: 3: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,324 INFO L280 TraceCheckUtils]: 4: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,324 INFO L280 TraceCheckUtils]: 5: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:48,326 INFO L280 TraceCheckUtils]: 6: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:48,326 INFO L280 TraceCheckUtils]: 7: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:48,327 INFO L280 TraceCheckUtils]: 8: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:48,328 INFO L280 TraceCheckUtils]: 9: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:48,329 INFO L280 TraceCheckUtils]: 10: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:48,330 INFO L280 TraceCheckUtils]: 11: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7601#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:35:48,331 INFO L280 TraceCheckUtils]: 12: Hoare triple {7601#(<= ~__unbuffered_cnt~0 2)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:48,333 INFO L280 TraceCheckUtils]: 13: Hoare triple {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:48,334 INFO L280 TraceCheckUtils]: 14: Hoare triple {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7598#false} is VALID [2020-07-28 21:35:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:48,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062714215] [2020-07-28 21:35:48,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:35:48,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827385905] [2020-07-28 21:35:48,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:48,343 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:35:48,368 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:35:48,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:35:48,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:35:48,369 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-07-28 21:35:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,535 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-07-28 21:35:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:35:48,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:48,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:35:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:48,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:35:48,537 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 49 transitions. [2020-07-28 21:35:48,600 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,600 INFO L225 Difference]: With dead ends: 110 [2020-07-28 21:35:48,600 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 21:35:48,601 INFO L675 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 [2020-07-28 21:35:48,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 21:35:48,609 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,609 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:48,609 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:48,610 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,611 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:35:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:48,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,611 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,611 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:48,611 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,612 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:35:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:48,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,613 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,613 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 21:35:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-07-28 21:35:48,614 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-07-28 21:35:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,615 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-07-28 21:35:48,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:35:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:48,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:35:48,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:35:48,616 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,616 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-07-28 21:35:48,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666692579] [2020-07-28 21:35:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,685 INFO L280 TraceCheckUtils]: 0: Hoare triple {7869#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {7869#true} is VALID [2020-07-28 21:35:48,685 INFO L280 TraceCheckUtils]: 1: Hoare triple {7869#true} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7869#true} is VALID [2020-07-28 21:35:48,685 INFO L280 TraceCheckUtils]: 2: Hoare triple {7869#true} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {7869#true} is VALID [2020-07-28 21:35:48,686 INFO L280 TraceCheckUtils]: 3: Hoare triple {7869#true} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {7869#true} is VALID [2020-07-28 21:35:48,686 INFO L280 TraceCheckUtils]: 4: Hoare triple {7869#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,687 INFO L280 TraceCheckUtils]: 5: Hoare triple {7871#(= 1 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,688 INFO L280 TraceCheckUtils]: 6: Hoare triple {7871#(= 1 ~x~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,689 INFO L280 TraceCheckUtils]: 7: Hoare triple {7871#(= 1 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,690 INFO L280 TraceCheckUtils]: 8: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,690 INFO L280 TraceCheckUtils]: 9: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,691 INFO L280 TraceCheckUtils]: 10: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,691 INFO L280 TraceCheckUtils]: 11: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,692 INFO L280 TraceCheckUtils]: 12: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,694 INFO L280 TraceCheckUtils]: 13: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,695 INFO L280 TraceCheckUtils]: 14: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,697 INFO L280 TraceCheckUtils]: 15: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,699 INFO L280 TraceCheckUtils]: 16: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7870#false} is VALID [2020-07-28 21:35:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:48,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666692579] [2020-07-28 21:35:48,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:48,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662914268] [2020-07-28 21:35:48,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:48,701 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,701 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:48,727 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:48,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:48,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:48,728 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-07-28 21:35:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,803 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-07-28 21:35:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:48,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:35:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:35:48,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 36 transitions. [2020-07-28 21:35:48,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,851 INFO L225 Difference]: With dead ends: 56 [2020-07-28 21:35:48,851 INFO L226 Difference]: Without dead ends: 35 [2020-07-28 21:35:48,852 INFO L675 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 [2020-07-28 21:35:48,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-28 21:35:48,862 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,862 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:48,863 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:48,863 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:48,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,864 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:35:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:48,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,865 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,865 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:48,865 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,866 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:35:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:48,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,867 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,867 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,867 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-28 21:35:48,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-07-28 21:35:48,869 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-07-28 21:35:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,869 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-07-28 21:35:48,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:48,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:35:48,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:35:48,871 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,871 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-07-28 21:35:48,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99986028] [2020-07-28 21:35:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,919 INFO L280 TraceCheckUtils]: 0: Hoare triple {8073#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25| 1) |v_#valid_53|) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2139~0.base_25|) |v_ULTIMATE.start_main_~#t2139~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2139~0.base_25| 4)) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2139~0.offset_20|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2139~0.base_25|)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2139~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2139~0.offset=|v_ULTIMATE.start_main_~#t2139~0.offset_20|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2139~0.base=|v_ULTIMATE.start_main_~#t2139~0.base_25|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_20|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_23|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_18|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_16|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2139~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2139~0.base, ULTIMATE.start_main_~#t2141~0.base, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2140~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2140~0.offset, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2141~0.offset, ~y~0, ~x~0] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,920 INFO L280 TraceCheckUtils]: 1: Hoare triple {8075#(= 0 ~x~0)} [163] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,921 INFO L280 TraceCheckUtils]: 2: Hoare triple {8075#(= 0 ~x~0)} [197] L768-1-->L770: Formula: (and (= |v_ULTIMATE.start_main_~#t2140~0.offset_9| 0) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2140~0.base_10| 4) |v_#length_13|) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2140~0.base_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2140~0.base_10|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2140~0.base_10|) |v_ULTIMATE.start_main_~#t2140~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2140~0.base_10| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2140~0.base=|v_ULTIMATE.start_main_~#t2140~0.base_10|, ULTIMATE.start_main_~#t2140~0.offset=|v_ULTIMATE.start_main_~#t2140~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2140~0.base, ULTIMATE.start_main_~#t2140~0.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,923 INFO L280 TraceCheckUtils]: 3: Hoare triple {8075#(= 0 ~x~0)} [165] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,927 INFO L280 TraceCheckUtils]: 4: Hoare triple {8075#(= 0 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2141~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2141~0.offset_11|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2141~0.base_13|) |v_ULTIMATE.start_main_~#t2141~0.offset_11| 2)) |v_#memory_int_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2141~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2141~0.base_13| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2141~0.base=|v_ULTIMATE.start_main_~#t2141~0.base_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2141~0.offset=|v_ULTIMATE.start_main_~#t2141~0.offset_11|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2141~0.base, #length, ULTIMATE.start_main_~#t2141~0.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,928 INFO L280 TraceCheckUtils]: 5: Hoare triple {8075#(= 0 ~x~0)} [167] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:48,931 INFO L280 TraceCheckUtils]: 6: Hoare triple {8075#(= 0 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,932 INFO L280 TraceCheckUtils]: 7: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,934 INFO L280 TraceCheckUtils]: 8: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,935 INFO L280 TraceCheckUtils]: 9: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,936 INFO L280 TraceCheckUtils]: 10: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,937 INFO L280 TraceCheckUtils]: 11: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,938 INFO L280 TraceCheckUtils]: 12: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,939 INFO L280 TraceCheckUtils]: 13: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,940 INFO L280 TraceCheckUtils]: 14: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,941 INFO L280 TraceCheckUtils]: 15: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,942 INFO L280 TraceCheckUtils]: 16: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {8074#false} is VALID [2020-07-28 21:35:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:48,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99986028] [2020-07-28 21:35:48,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:48,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729729619] [2020-07-28 21:35:48,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:48,945 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,945 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:48,966 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:48,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:48,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:48,968 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-07-28 21:35:49,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,025 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-07-28 21:35:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:49,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:49,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:35:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:35:49,027 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 22 transitions. [2020-07-28 21:35:49,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:49,059 INFO L225 Difference]: With dead ends: 34 [2020-07-28 21:35:49,059 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:35:49,060 INFO L675 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 [2020-07-28 21:35:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:35:49,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:35:49,060 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:49,061 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:49,061 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:49,061 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,061 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:49,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,062 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:49,062 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,063 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:49,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,063 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,063 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:49,063 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:35:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:35:49,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:35:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:49,065 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:35:49,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:49,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:49,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 21:35:49,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:35:49 BasicIcfg [2020-07-28 21:35:49,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:35:49,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:35:49,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:35:49,071 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:35:49,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:42" (3/4) ... [2020-07-28 21:35:49,077 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:35:49,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:35:49,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:35:49,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:35:49,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:35:49,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:35:49,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:35:49,160 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:35:49,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:35:49,164 INFO L168 Benchmark]: Toolchain (without parser) took 8572.40 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.2 MB). Free memory was 948.1 MB in the beginning and 908.0 MB in the end (delta: 40.1 MB). Peak memory consumption was 324.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,165 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:35:49,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:35:49,166 INFO L168 Benchmark]: Boogie Preprocessor took 31.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,171 INFO L168 Benchmark]: RCFGBuilder took 568.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,171 INFO L168 Benchmark]: TraceAbstraction took 7065.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 916.6 MB in the end (delta: 177.7 MB). Peak memory consumption was 291.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,172 INFO L168 Benchmark]: Witness Printer took 90.30 ms. Allocated memory is still 1.3 GB. Free memory was 916.6 MB in the beginning and 908.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:49,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 749.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 568.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7065.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 916.6 MB in the end (delta: 177.7 MB). Peak memory consumption was 291.4 MB. Max. memory is 11.5 GB. * Witness Printer took 90.30 ms. Allocated memory is still 1.3 GB. Free memory was 916.6 MB in the beginning and 908.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.9s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.1s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 215 SDtfs, 143 SDslu, 229 SDs, 0 SdLazy, 127 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4748 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...